Hi, Here are the videos from Yagi's lab at ISSP: https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208 I did not put them on youtube or any public website since I do not own their rights but feel free to use them. Just acknowledge T. Yagi at ISSP, Univ. of Tokyo. He told me that the ice VI crystal sinking had been a challenge. It was hard to keep the focus on the DAC while rotating it and capturing a video at the time. Best, -- Sébastien Merkel UMET - Unité Matériaux et Transformations Université de Lille - CNRS http://merkel.texture.rocks/ Tel: +33 (0)3 20 43 65 16 E-mail: sebastien.merkel@univ-lille.fr Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : > Hi, Japan Broadcasting Corporation (NHK) made a beautiful video showing an ice V crystal sinking in the diamond cell (instead of floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a postdoc). I think I still have a videotape copy but it is probably available on the web. I have seen it used by others in seminar lectures (without acknowledgment) including one or more of the groups mentioned here! So that is probably what you saw... > > - Kurt > > > > > > -----Original Message----- > From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> > Sent: Wednesday, February 24, 2021 9:05 AM > To: Fred Marton <fmarton@bergen.edu> > Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; msa-talk@minlists.org > Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? > > I do recall seeing videos of this several years ago - maybe from I-Ming Chou’s group or from Russ Hemley’s group? > > >> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk <msa-talk@minlists.org> wrote: >> >> A video of this would be great! >> >> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk <msa-talk@minlists.org> wrote: >> >> Not everyone has one, but pure water in the diamond anvil cell works >> well. You can look into your diamond cell with a microscope and camera >> and project the image. >> >> As you increase pressure to ~1 GPa, you form ice VI at ambient >> temperature, which you can melt by releasing pressure. >> >> >> -- >> Sébastien Merkel >> >> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >> Tel: +33 (0)3 20 43 65 16 >> E-mail: sebastien.merkel@univ-lille.fr >> >> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>> Hi Mike, >>> >>> I have never tried it, but gallium seems like a good candidate but for the opposite effect. The liquid is more dense than the solid, so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so with just a little heating you can get it near its melting point in the lab. Application of a little pressure should melt it. It might be hard to observe in a vise, since as soon as pressure is released (i.e. a droplet) it will freeze. >>> >>> Mark >>> >>> >>> -----Original Message----- >>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>> Sent: Tuesday, February 23, 2021 2:14 PM >>> To: msa-talk@minlists.org >>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>> >>> Hello all- >>> >>> Does anyone know of a demonstration of decompression melting that could be done "live" in a classroom? Ideally a nontoxic material that is solid under compression (perhaps held in a vise) at near room temperatures and visibly melts a bit when the pressure is released. I know, too much to ask for. >>> >>> Cheers, >>> Mike >>> >>> ___________________________________________________ >>> Dr J. Michael Palin >>> Department of Geology >>> University of Otago >>> PO Box 56, Dunedin 9054 (post) >>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>> +64-3-479-9083 (office) >>> +64-3-479-7527 (fax) >>> +64-3-479-7519 (admin) >>> ORCID 0000-0002-4972-7302 >>> _______________________________ >>> Who will prefer the jingle of jade pendants If they once have heard stone growing in a cliff? >>> - Lao Tzu >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >>> >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org >> >> >> -- >> Fred Marton, PhD >> Department of Physical Sciences >> Bergen Community College >> 400 Paramus Rd. >> Paramus, NJ 07652-1508 >> +1-201-493-7518 >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org > _______________________________________________ > MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an email to msa-talk-leave@minlists.org >

Yeah, for Pete's sake, please acknowledge the source of that great video. I see it without acknowledgment all the time. Perhaps people don't know where the video came from. Yagi-sensei also told me that the making the crystal sink was very difficult. I made a bad joke when I watched it with him in 1990 and said, "Oh, the camera was turned upside-down!" I don't think he liked the joke. But, the monoclinic shape of the crystal is unmistakeable and so I think the film is authentic. Thanks for listening! - Kurt -----Original Message----- From: Sébastien Merkel <sebastien.merkel@univ-lille.fr> Sent: Wednesday, February 24, 2021 2:00 PM To: Kurt Leinenweber <KURTL@asu.edu>; Robert Bodnar <rjb@vt.edu>; Fred Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady <jbrady@smith.edu> Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? Hi, Here are the videos from Yagi's lab at ISSP: https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ I did not put them on youtube or any public website since I do not own their rights but feel free to use them. Just acknowledge T. Yagi at ISSP, Univ. of Tokyo. He told me that the ice VI crystal sinking had been a challenge. It was hard to keep the focus on the DAC while rotating it and capturing a video at the time. Best, -- Sébastien Merkel UMET - Unité Matériaux et Transformations Université de Lille - CNRS https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ Tel: +33 (0)3 20 43 65 16 E-mail: sebastien.merkel@univ-lille.fr Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : > Hi, Japan Broadcasting Corporation (NHK) made a beautiful video showing an ice V crystal sinking in the diamond cell (instead of floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a postdoc). I think I still have a videotape copy but it is probably available on the web. I have seen it used by others in seminar lectures (without acknowledgment) including one or more of the groups mentioned here! So that is probably what you saw... > > - Kurt > > > > > > -----Original Message----- > From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> > Sent: Wednesday, February 24, 2021 9:05 AM > To: Fred Marton <fmarton@bergen.edu> > Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; > msa-talk@minlists.org > Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? > > I do recall seeing videos of this several years ago - maybe from I-Ming Chou’s group or from Russ Hemley’s group? > > >> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk <msa-talk@minlists.org> wrote: >> >> A video of this would be great! >> >> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk <msa-talk@minlists.org> wrote: >> >> Not everyone has one, but pure water in the diamond anvil cell works >> well. You can look into your diamond cell with a microscope and >> camera and project the image. >> >> As you increase pressure to ~1 GPa, you form ice VI at ambient >> temperature, which you can melt by releasing pressure. >> >> >> -- >> Sébastien Merkel >> >> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >> Tel: +33 (0)3 20 43 65 16 >> E-mail: sebastien.merkel@univ-lille.fr >> >> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>> Hi Mike, >>> >>> I have never tried it, but gallium seems like a good candidate but for the opposite effect. The liquid is more dense than the solid, so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so with just a little heating you can get it near its melting point in the lab. Application of a little pressure should melt it. It might be hard to observe in a vise, since as soon as pressure is released (i.e. a droplet) it will freeze. >>> >>> Mark >>> >>> >>> -----Original Message----- >>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>> Sent: Tuesday, February 23, 2021 2:14 PM >>> To: msa-talk@minlists.org >>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>> >>> Hello all- >>> >>> Does anyone know of a demonstration of decompression melting that could be done "live" in a classroom? Ideally a nontoxic material that is solid under compression (perhaps held in a vise) at near room temperatures and visibly melts a bit when the pressure is released. I know, too much to ask for. >>> >>> Cheers, >>> Mike >>> >>> ___________________________________________________ >>> Dr J. Michael Palin >>> Department of Geology >>> University of Otago >>> PO Box 56, Dunedin 9054 (post) >>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>> +64-3-479-9083 (office) >>> +64-3-479-7527 (fax) >>> +64-3-479-7519 (admin) >>> ORCID 0000-0002-4972-7302 >>> _______________________________ >>> Who will prefer the jingle of jade pendants If they once have heard stone growing in a cliff? >>> - Lao Tzu >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >>> >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org >> >> >> -- >> Fred Marton, PhD >> Department of Physical Sciences >> Bergen Community College >> 400 Paramus Rd. >> Paramus, NJ 07652-1508 >> +1-201-493-7518 >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org > _______________________________________________ > MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an > email to msa-talk-leave@minlists.org >

Oh sorry I made a mistake, and that seems to be the story of my life recently. The phase is Ice VI and is tetragonal (P42/nmc). That is more consistent with what we see in the DAC (the crystal form). Thx, - Kurt -----Original Message----- From: Kurt Leinenweber Sent: Wednesday, February 24, 2021 2:03 PM To: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; Robert Bodnar <rjb@vt.edu>; Fred Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady <jbrady@smith.edu> Subject: RE: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? Yeah, for Pete's sake, please acknowledge the source of that great video. I see it without acknowledgment all the time. Perhaps people don't know where the video came from. Yagi-sensei also told me that the making the crystal sink was very difficult. I made a bad joke when I watched it with him in 1990 and said, "Oh, the camera was turned upside-down!" I don't think he liked the joke. But, the monoclinic shape of the crystal is unmistakeable and so I think the film is authentic. Thanks for listening! - Kurt -----Original Message----- From: Sébastien Merkel <sebastien.merkel@univ-lille.fr> Sent: Wednesday, February 24, 2021 2:00 PM To: Kurt Leinenweber <KURTL@asu.edu>; Robert Bodnar <rjb@vt.edu>; Fred Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady <jbrady@smith.edu> Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? Hi, Here are the videos from Yagi's lab at ISSP: https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ I did not put them on youtube or any public website since I do not own their rights but feel free to use them. Just acknowledge T. Yagi at ISSP, Univ. of Tokyo. He told me that the ice VI crystal sinking had been a challenge. It was hard to keep the focus on the DAC while rotating it and capturing a video at the time. Best, -- Sébastien Merkel UMET - Unité Matériaux et Transformations Université de Lille - CNRS https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ Tel: +33 (0)3 20 43 65 16 E-mail: sebastien.merkel@univ-lille.fr Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : > Hi, Japan Broadcasting Corporation (NHK) made a beautiful video showing an ice V crystal sinking in the diamond cell (instead of floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a postdoc). I think I still have a videotape copy but it is probably available on the web. I have seen it used by others in seminar lectures (without acknowledgment) including one or more of the groups mentioned here! So that is probably what you saw... > > - Kurt > > > > > > -----Original Message----- > From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> > Sent: Wednesday, February 24, 2021 9:05 AM > To: Fred Marton <fmarton@bergen.edu> > Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; > msa-talk@minlists.org > Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? > > I do recall seeing videos of this several years ago - maybe from I-Ming Chou’s group or from Russ Hemley’s group? > > >> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk <msa-talk@minlists.org> wrote: >> >> A video of this would be great! >> >> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk <msa-talk@minlists.org> wrote: >> >> Not everyone has one, but pure water in the diamond anvil cell works >> well. You can look into your diamond cell with a microscope and >> camera and project the image. >> >> As you increase pressure to ~1 GPa, you form ice VI at ambient >> temperature, which you can melt by releasing pressure. >> >> >> -- >> Sébastien Merkel >> >> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >> Tel: +33 (0)3 20 43 65 16 >> E-mail: sebastien.merkel@univ-lille.fr >> >> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>> Hi Mike, >>> >>> I have never tried it, but gallium seems like a good candidate but for the opposite effect. The liquid is more dense than the solid, so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so with just a little heating you can get it near its melting point in the lab. Application of a little pressure should melt it. It might be hard to observe in a vise, since as soon as pressure is released (i.e. a droplet) it will freeze. >>> >>> Mark >>> >>> >>> -----Original Message----- >>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>> Sent: Tuesday, February 23, 2021 2:14 PM >>> To: msa-talk@minlists.org >>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>> >>> Hello all- >>> >>> Does anyone know of a demonstration of decompression melting that could be done "live" in a classroom? Ideally a nontoxic material that is solid under compression (perhaps held in a vise) at near room temperatures and visibly melts a bit when the pressure is released. I know, too much to ask for. >>> >>> Cheers, >>> Mike >>> >>> ___________________________________________________ >>> Dr J. Michael Palin >>> Department of Geology >>> University of Otago >>> PO Box 56, Dunedin 9054 (post) >>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>> +64-3-479-9083 (office) >>> +64-3-479-7527 (fax) >>> +64-3-479-7519 (admin) >>> ORCID 0000-0002-4972-7302 >>> _______________________________ >>> Who will prefer the jingle of jade pendants If they once have heard stone growing in a cliff? >>> - Lao Tzu >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >>> >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org >> >> >> -- >> Fred Marton, PhD >> Department of Physical Sciences >> Bergen Community College >> 400 Paramus Rd. >> Paramus, NJ 07652-1508 >> +1-201-493-7518 >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org > _______________________________________________ > MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an > email to msa-talk-leave@minlists.org >

Thank you for this info on the source of the video Kurt. Bob > On Feb 24, 2021, at 4:02 PM, Kurt Leinenweber <KURTL@asu.edu> wrote: > > Yeah, for Pete's sake, please acknowledge the source of that great video. I see it without acknowledgment all the time. Perhaps people don't know where the video came from. Yagi-sensei also told me that the making the crystal sink was very difficult. I made a bad joke when I watched it with him in 1990 and said, "Oh, the camera was turned upside-down!" I don't think he liked the joke. But, the monoclinic shape of the crystal is unmistakeable and so I think the film is authentic. Thanks for listening! > > - Kurt > > -----Original Message----- > From: Sébastien Merkel <sebastien.merkel@univ-lille.fr> > Sent: Wednesday, February 24, 2021 2:00 PM > To: Kurt Leinenweber <KURTL@asu.edu>; Robert Bodnar <rjb@vt.edu>; Fred Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady <jbrady@smith.edu> > Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? > > > Hi, > > Here are the videos from Yagi's lab at ISSP: > https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ > > I did not put them on youtube or any public website since I do not own their rights but feel free to use them. Just acknowledge T. Yagi at ISSP, Univ. of Tokyo. > > He told me that the ice VI crystal sinking had been a challenge. It was hard to keep the focus on the DAC while rotating it and capturing a video at the time. > > Best, > > -- > Sébastien Merkel > > UMET - Unité Matériaux et Transformations Université de Lille - CNRS https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ > Tel: +33 (0)3 20 43 65 16 > E-mail: sebastien.merkel@univ-lille.fr > > Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : >> Hi, Japan Broadcasting Corporation (NHK) made a beautiful video showing an ice V crystal sinking in the diamond cell (instead of floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a postdoc). I think I still have a videotape copy but it is probably available on the web. I have seen it used by others in seminar lectures (without acknowledgment) including one or more of the groups mentioned here! So that is probably what you saw... >> >> - Kurt >> >> >> >> >> >> -----Original Message----- >> From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> >> Sent: Wednesday, February 24, 2021 9:05 AM >> To: Fred Marton <fmarton@bergen.edu> >> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; >> msa-talk@minlists.org >> Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? >> >> I do recall seeing videos of this several years ago - maybe from I-Ming Chou’s group or from Russ Hemley’s group? >> >> >>> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk <msa-talk@minlists.org> wrote: >>> >>> A video of this would be great! >>> >>> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk <msa-talk@minlists.org> wrote: >>> >>> Not everyone has one, but pure water in the diamond anvil cell works >>> well. You can look into your diamond cell with a microscope and >>> camera and project the image. >>> >>> As you increase pressure to ~1 GPa, you form ice VI at ambient >>> temperature, which you can melt by releasing pressure. >>> >>> >>> -- >>> Sébastien Merkel >>> >>> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >>> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >>> Tel: +33 (0)3 20 43 65 16 >>> E-mail: sebastien.merkel@univ-lille.fr >>> >>> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>>> Hi Mike, >>>> >>>> I have never tried it, but gallium seems like a good candidate but for the opposite effect. The liquid is more dense than the solid, so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so with just a little heating you can get it near its melting point in the lab. Application of a little pressure should melt it. It might be hard to observe in a vise, since as soon as pressure is released (i.e. a droplet) it will freeze. >>>> >>>> Mark >>>> >>>> >>>> -----Original Message----- >>>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>>> Sent: Tuesday, February 23, 2021 2:14 PM >>>> To: msa-talk@minlists.org >>>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>>> >>>> Hello all- >>>> >>>> Does anyone know of a demonstration of decompression melting that could be done "live" in a classroom? Ideally a nontoxic material that is solid under compression (perhaps held in a vise) at near room temperatures and visibly melts a bit when the pressure is released. I know, too much to ask for. >>>> >>>> Cheers, >>>> Mike >>>> >>>> ___________________________________________________ >>>> Dr J. Michael Palin >>>> Department of Geology >>>> University of Otago >>>> PO Box 56, Dunedin 9054 (post) >>>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>>> +64-3-479-9083 (office) >>>> +64-3-479-7527 (fax) >>>> +64-3-479-7519 (admin) >>>> ORCID 0000-0002-4972-7302 >>>> _______________________________ >>>> Who will prefer the jingle of jade pendants If they once have heard stone growing in a cliff? >>>> - Lao Tzu >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>>> >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>> email to msa-talk-leave@minlists.org >>> >>> >>> -- >>> Fred Marton, PhD >>> Department of Physical Sciences >>> Bergen Community College >>> 400 Paramus Rd. >>> Paramus, NJ 07652-1508 >>> +1-201-493-7518 >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>> email to msa-talk-leave@minlists.org >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org >>

Hi Bob, Thanks... tell me if you can get the video to work in thie new format! I will try later. - Kurt -----Original Message----- From: Robert Bodnar <rjb@vt.edu> Sent: Wednesday, February 24, 2021 2:14 PM To: Kurt Leinenweber <KURTL@asu.edu> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; Fred Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady <jbrady@smith.edu> Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? Thank you for this info on the source of the video Kurt. Bob > On Feb 24, 2021, at 4:02 PM, Kurt Leinenweber <KURTL@asu.edu> wrote: > > Yeah, for Pete's sake, please acknowledge the source of that great video. I see it without acknowledgment all the time. Perhaps people don't know where the video came from. Yagi-sensei also told me that the making the crystal sink was very difficult. I made a bad joke when I watched it with him in 1990 and said, "Oh, the camera was turned upside-down!" I don't think he liked the joke. But, the monoclinic shape of the crystal is unmistakeable and so I think the film is authentic. Thanks for listening! > > - Kurt > > -----Original Message----- > From: Sébastien Merkel <sebastien.merkel@univ-lille.fr> > Sent: Wednesday, February 24, 2021 2:00 PM > To: Kurt Leinenweber <KURTL@asu.edu>; Robert Bodnar <rjb@vt.edu>; Fred > Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady > <jbrady@smith.edu> > Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? > > > Hi, > > Here are the videos from Yagi's lab at ISSP: > https://urldefense.com/v3/__https://filesender.renater.fr/?s=download& > token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWR > yAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ > > I did not put them on youtube or any public website since I do not own their rights but feel free to use them. Just acknowledge T. Yagi at ISSP, Univ. of Tokyo. > > He told me that the ice VI crystal sinking had been a challenge. It was hard to keep the focus on the DAC while rotating it and capturing a video at the time. > > Best, > > -- > Sébastien Merkel > > UMET - Unité Matériaux et Transformations Université de Lille - CNRS https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ > Tel: +33 (0)3 20 43 65 16 > E-mail: sebastien.merkel@univ-lille.fr > > Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : >> Hi, Japan Broadcasting Corporation (NHK) made a beautiful video showing an ice V crystal sinking in the diamond cell (instead of floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a postdoc). I think I still have a videotape copy but it is probably available on the web. I have seen it used by others in seminar lectures (without acknowledgment) including one or more of the groups mentioned here! So that is probably what you saw... >> >> - Kurt >> >> >> >> >> >> -----Original Message----- >> From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> >> Sent: Wednesday, February 24, 2021 9:05 AM >> To: Fred Marton <fmarton@bergen.edu> >> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; >> msa-talk@minlists.org >> Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? >> >> I do recall seeing videos of this several years ago - maybe from I-Ming Chou’s group or from Russ Hemley’s group? >> >> >>> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk <msa-talk@minlists.org> wrote: >>> >>> A video of this would be great! >>> >>> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk <msa-talk@minlists.org> wrote: >>> >>> Not everyone has one, but pure water in the diamond anvil cell works >>> well. You can look into your diamond cell with a microscope and >>> camera and project the image. >>> >>> As you increase pressure to ~1 GPa, you form ice VI at ambient >>> temperature, which you can melt by releasing pressure. >>> >>> >>> -- >>> Sébastien Merkel >>> >>> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >>> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >>> Tel: +33 (0)3 20 43 65 16 >>> E-mail: sebastien.merkel@univ-lille.fr >>> >>> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>>> Hi Mike, >>>> >>>> I have never tried it, but gallium seems like a good candidate but for the opposite effect. The liquid is more dense than the solid, so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so with just a little heating you can get it near its melting point in the lab. Application of a little pressure should melt it. It might be hard to observe in a vise, since as soon as pressure is released (i.e. a droplet) it will freeze. >>>> >>>> Mark >>>> >>>> >>>> -----Original Message----- >>>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>>> Sent: Tuesday, February 23, 2021 2:14 PM >>>> To: msa-talk@minlists.org >>>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>>> >>>> Hello all- >>>> >>>> Does anyone know of a demonstration of decompression melting that could be done "live" in a classroom? Ideally a nontoxic material that is solid under compression (perhaps held in a vise) at near room temperatures and visibly melts a bit when the pressure is released. I know, too much to ask for. >>>> >>>> Cheers, >>>> Mike >>>> >>>> ___________________________________________________ >>>> Dr J. Michael Palin >>>> Department of Geology >>>> University of Otago >>>> PO Box 56, Dunedin 9054 (post) >>>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>>> +64-3-479-9083 (office) >>>> +64-3-479-7527 (fax) >>>> +64-3-479-7519 (admin) >>>> ORCID 0000-0002-4972-7302 >>>> _______________________________ >>>> Who will prefer the jingle of jade pendants If they once have heard stone growing in a cliff? >>>> - Lao Tzu >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>>> >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >>> >>> >>> -- >>> Fred Marton, PhD >>> Department of Physical Sciences >>> Bergen Community College >>> 400 Paramus Rd. >>> Paramus, NJ 07652-1508 >>> +1-201-493-7518 >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>> an email to msa-talk-leave@minlists.org >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org >>

Hi Kurt, and all on the list, Cc: Yagi-san, I also have used a Yagi's video, which seems combined of Sébastien Merkel's videos: ice viA and B. The mp4 file with no sound, no text, 50 seconds, and 4.7Mb, had been "freely" downloaded from Yagi's homepage. This morning I asked Yagi-san whether he feels ok to distribute his film to anyone who may interested in it. His reply was positive. Sorry, but I needed to downsize it to 980 kb and allow the aspect ratio change to 16:9 from the original 4:3 by very smart iMovie. Anyone who will be interested in high-pressure ice VI can download his movie at: https://wwp.shizuoka.ac.jp/subductionzonefluids/2021/02/26/yagis-high-pressure-ice-vi-1987/ <https://wwp.shizuoka.ac.jp/subductionzonefluids/2021/02/26/yagis-high-pressure-ice-vi-1987/> Cheers, Tatsu Kawamoto -- Department of Geoscience, Faculty of Science Shizuoka University, Shizuoka, 422-8529 Japan Tatsuhiko Kawamoto office (81) 54-238-4788 mobile (81) 90-9883-0432 kawamoto.tatsuhiko@shizuoka.ac.jp https://tdb.shizuoka.ac.jp/RDB/public/Default2.aspx?id=11267&l=1 http://www.researcherid.com/rid/H-6088-2011 https://kyoto-u.academia.edu/TatsuhikoKawamoto https://scholar.google.co.jp/citations?user=mJ03tjMAAAAJ&hl=en On 2021/02/25 6:15, Kurt Leinenweber via MSA-talk wrote: > Hi Bob, Thanks... tell me if you can get the video to work in thie new format! I will try later. - Kurt > > -----Original Message----- > From: Robert Bodnar <rjb@vt.edu> > Sent: Wednesday, February 24, 2021 2:14 PM > To: Kurt Leinenweber <KURTL@asu.edu> > Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; Fred Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady <jbrady@smith.edu> > Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? > > Thank you for this info on the source of the video Kurt. > > Bob > >> On Feb 24, 2021, at 4:02 PM, Kurt Leinenweber <KURTL@asu.edu> wrote: >> >> Yeah, for Pete's sake, please acknowledge the source of that great video. I see it without acknowledgment all the time. Perhaps people don't know where the video came from. Yagi-sensei also told me that the making the crystal sink was very difficult. I made a bad joke when I watched it with him in 1990 and said, "Oh, the camera was turned upside-down!" I don't think he liked the joke. But, the monoclinic shape of the crystal is unmistakeable and so I think the film is authentic. Thanks for listening! >> >> - Kurt >> >> -----Original Message----- >> From: Sébastien Merkel <sebastien.merkel@univ-lille.fr> >> Sent: Wednesday, February 24, 2021 2:00 PM >> To: Kurt Leinenweber <KURTL@asu.edu>; Robert Bodnar <rjb@vt.edu>; Fred >> Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady >> <jbrady@smith.edu> >> Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? >> >> >> Hi, >> >> Here are the videos from Yagi's lab at ISSP: >> https://urldefense.com/v3/__https://filesender.renater.fr/?s=download& >> token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWR >> yAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ >> >> I did not put them on youtube or any public website since I do not own their rights but feel free to use them. Just acknowledge T. Yagi at ISSP, Univ. of Tokyo. >> >> He told me that the ice VI crystal sinking had been a challenge. It was hard to keep the focus on the DAC while rotating it and capturing a video at the time. >> >> Best, >> >> -- >> Sébastien Merkel >> >> UMET - Unité Matériaux et Transformations Université de Lille - CNRS https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ >> Tel: +33 (0)3 20 43 65 16 >> E-mail: sebastien.merkel@univ-lille.fr >> >> Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : >>> Hi, Japan Broadcasting Corporation (NHK) made a beautiful video showing an ice V crystal sinking in the diamond cell (instead of floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a postdoc). I think I still have a videotape copy but it is probably available on the web. I have seen it used by others in seminar lectures (without acknowledgment) including one or more of the groups mentioned here! So that is probably what you saw... >>> >>> - Kurt >>> >>> >>> >>> >>> >>> -----Original Message----- >>> From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> >>> Sent: Wednesday, February 24, 2021 9:05 AM >>> To: Fred Marton <fmarton@bergen.edu> >>> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; >>> msa-talk@minlists.org >>> Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? >>> >>> I do recall seeing videos of this several years ago - maybe from I-Ming Chou’s group or from Russ Hemley’s group? >>> >>> >>>> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk <msa-talk@minlists.org> wrote: >>>> >>>> A video of this would be great! >>>> >>>> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk <msa-talk@minlists.org> wrote: >>>> >>>> Not everyone has one, but pure water in the diamond anvil cell works >>>> well. You can look into your diamond cell with a microscope and >>>> camera and project the image. >>>> >>>> As you increase pressure to ~1 GPa, you form ice VI at ambient >>>> temperature, which you can melt by releasing pressure. >>>> >>>> >>>> -- >>>> Sébastien Merkel >>>> >>>> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >>>> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >>>> Tel: +33 (0)3 20 43 65 16 >>>> E-mail: sebastien.merkel@univ-lille.fr >>>> >>>> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>>>> Hi Mike, >>>>> >>>>> I have never tried it, but gallium seems like a good candidate but for the opposite effect. The liquid is more dense than the solid, so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so with just a little heating you can get it near its melting point in the lab. Application of a little pressure should melt it. It might be hard to observe in a vise, since as soon as pressure is released (i.e. a droplet) it will freeze. >>>>> >>>>> Mark >>>>> >>>>> >>>>> -----Original Message----- >>>>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>>>> Sent: Tuesday, February 23, 2021 2:14 PM >>>>> To: msa-talk@minlists.org >>>>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>>>> >>>>> Hello all- >>>>> >>>>> Does anyone know of a demonstration of decompression melting that could be done "live" in a classroom? Ideally a nontoxic material that is solid under compression (perhaps held in a vise) at near room temperatures and visibly melts a bit when the pressure is released. I know, too much to ask for. >>>>> >>>>> Cheers, >>>>> Mike >>>>> >>>>> ___________________________________________________ >>>>> Dr J. Michael Palin >>>>> Department of Geology >>>>> University of Otago >>>>> PO Box 56, Dunedin 9054 (post) >>>>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>>>> +64-3-479-9083 (office) >>>>> +64-3-479-7527 (fax) >>>>> +64-3-479-7519 (admin) >>>>> ORCID 0000-0002-4972-7302 >>>>> _______________________________ >>>>> Who will prefer the jingle of jade pendants If they once have heard stone growing in a cliff? >>>>> - Lao Tzu >>>>> _______________________________________________ >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>>> an email to msa-talk-leave@minlists.org >>>>> _______________________________________________ >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>>> an email to msa-talk-leave@minlists.org >>>>> >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>>> >>>> >>>> -- >>>> Fred Marton, PhD >>>> Department of Physical Sciences >>>> Bergen Community College >>>> 400 Paramus Rd. >>>> Paramus, NJ 07652-1508 >>>> +1-201-493-7518 >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>> email to msa-talk-leave@minlists.org >>> > _______________________________________________ > MSA-talk mailing list -- msa-talk@minlists.org > To unsubscribe send an email to msa-talk-leave@minlists.org

Thank you for the videos! I agree, nucleating and melting ice VI is a great classroom experiment. One can demonstrate that ice VI is denser than the liquid simply by focusing on the culet of the upper anvil, and letting a single ice VI crystal grow from the bottom upward. We used to show this to the public in pre-covid times. Making a good video of this is much harder. Christian Christian Schmidt GFZ German Research Center for Geosciences Section 3.6 Chemistry and Physics of Earth Materials Telegrafenberg D324 14473 Potsdam Germany Tel. (office) +49 (331) 288-1406 Tel. (lab) +49 (331) 288-1850 or -1478 or -1499 Fax +49 (331) 288-1402 E-mail Christian.Schmidt@gfz-potsdam.de > On Feb 24, 2021, at 10:02 PM, Kurt Leinenweber via MSA-talk <msa-talk@minlists.org> wrote: > > Yeah, for Pete's sake, please acknowledge the source of that great video. I see it without acknowledgment all the time. Perhaps people don't know where the video came from. Yagi-sensei also told me that the making the crystal sink was very difficult. I made a bad joke when I watched it with him in 1990 and said, "Oh, the camera was turned upside-down!" I don't think he liked the joke. But, the monoclinic shape of the crystal is unmistakeable and so I think the film is authentic. Thanks for listening! > > - Kurt > > -----Original Message----- > From: Sébastien Merkel <sebastien.merkel@univ-lille.fr> > Sent: Wednesday, February 24, 2021 2:00 PM > To: Kurt Leinenweber <KURTL@asu.edu>; Robert Bodnar <rjb@vt.edu>; Fred Marton <fmarton@bergen.edu>; msa-talk@minlists.org; John Brady <jbrady@smith.edu> > Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? > > > Hi, > > Here are the videos from Yagi's lab at ISSP: > https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ > > I did not put them on youtube or any public website since I do not own their rights but feel free to use them. Just acknowledge T. Yagi at ISSP, Univ. of Tokyo. > > He told me that the ice VI crystal sinking had been a challenge. It was hard to keep the focus on the DAC while rotating it and capturing a video at the time. > > Best, > > -- > Sébastien Merkel > > UMET - Unité Matériaux et Transformations Université de Lille - CNRS https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ > Tel: +33 (0)3 20 43 65 16 > E-mail: sebastien.merkel@univ-lille.fr > > Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : >> Hi, Japan Broadcasting Corporation (NHK) made a beautiful video showing an ice V crystal sinking in the diamond cell (instead of floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a postdoc). I think I still have a videotape copy but it is probably available on the web. I have seen it used by others in seminar lectures (without acknowledgment) including one or more of the groups mentioned here! So that is probably what you saw... >> >> - Kurt >> >> >> >> >> >> -----Original Message----- >> From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> >> Sent: Wednesday, February 24, 2021 9:05 AM >> To: Fred Marton <fmarton@bergen.edu> >> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; >> msa-talk@minlists.org >> Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of decompression melting? >> >> I do recall seeing videos of this several years ago - maybe from I-Ming Chou’s group or from Russ Hemley’s group? >> >> >>> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk <msa-talk@minlists.org> wrote: >>> >>> A video of this would be great! >>> >>> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk <msa-talk@minlists.org> wrote: >>> >>> Not everyone has one, but pure water in the diamond anvil cell works >>> well. You can look into your diamond cell with a microscope and >>> camera and project the image. >>> >>> As you increase pressure to ~1 GPa, you form ice VI at ambient >>> temperature, which you can melt by releasing pressure. >>> >>> >>> -- >>> Sébastien Merkel >>> >>> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >>> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >>> Tel: +33 (0)3 20 43 65 16 >>> E-mail: sebastien.merkel@univ-lille.fr >>> >>> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>>> Hi Mike, >>>> >>>> I have never tried it, but gallium seems like a good candidate but for the opposite effect. The liquid is more dense than the solid, so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so with just a little heating you can get it near its melting point in the lab. Application of a little pressure should melt it. It might be hard to observe in a vise, since as soon as pressure is released (i.e. a droplet) it will freeze. >>>> >>>> Mark >>>> >>>> >>>> -----Original Message----- >>>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>>> Sent: Tuesday, February 23, 2021 2:14 PM >>>> To: msa-talk@minlists.org >>>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>>> >>>> Hello all- >>>> >>>> Does anyone know of a demonstration of decompression melting that could be done "live" in a classroom? Ideally a nontoxic material that is solid under compression (perhaps held in a vise) at near room temperatures and visibly melts a bit when the pressure is released. I know, too much to ask for. >>>> >>>> Cheers, >>>> Mike >>>> >>>> ___________________________________________________ >>>> Dr J. Michael Palin >>>> Department of Geology >>>> University of Otago >>>> PO Box 56, Dunedin 9054 (post) >>>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>>> +64-3-479-9083 (office) >>>> +64-3-479-7527 (fax) >>>> +64-3-479-7519 (admin) >>>> ORCID 0000-0002-4972-7302 >>>> _______________________________ >>>> Who will prefer the jingle of jade pendants If they once have heard stone growing in a cliff? >>>> - Lao Tzu >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>> an email to msa-talk-leave@minlists.org >>>> >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>> email to msa-talk-leave@minlists.org >>> >>> >>> -- >>> Fred Marton, PhD >>> Department of Physical Sciences >>> Bergen Community College >>> 400 Paramus Rd. >>> Paramus, NJ 07652-1508 >>> +1-201-493-7518 >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>> email to msa-talk-leave@minlists.org >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> email to msa-talk-leave@minlists.org >> > _______________________________________________ > MSA-talk mailing list -- msa-talk@minlists.org > To unsubscribe send an email to msa-talk-leave@minlists.org

Hello all, The ice VI videos were quite successful! They were downloaded 300 times. We talked with Yagi-sensei and he agreed to have them on youtube. I uploaded them yesterday so everyone can find them easily: - https://www.youtube.com/watch?v=pGuYHmbkkZw - https://www.youtube.com/watch?v=dER6E2cb-y4 Best, -- Sébastien Merkel UMET - Unité Matériaux et Transformations Université de Lille - CNRS http://merkel.texture.rocks/ Tel: +33 (0)3 20 43 65 16 E-mail: sebastien.merkel@univ-lille.fr Le 26/02/2021 à 09:41, Christian Schmidt a écrit : > Thank you for the videos! I agree, nucleating and melting ice VI is a > great classroom experiment. One can demonstrate that ice VI is denser > than the liquid simply by focusing on the culet of the upper anvil, and > letting a single ice VI crystal grow from the bottom upward. We used to > show this to the public in pre-covid times. > Making a good video of this is much harder. > > Christian > > Christian Schmidt > GFZ German Research Center for Geosciences > Section 3.6 Chemistry and Physics of Earth Materials > Telegrafenberg D324 > 14473 Potsdam > Germany > > Tel. (office)+49 (331) 288-1406 > Tel. (lab)+49 (331) 288-1850 or -1478 or -1499 > Fax +49 (331) 288-1402 > E-mailChristian.Schmidt@gfz-potsdam.de > <mailto:Christian.Schmidt@gfz-potsdam.de> > >> On Feb 24, 2021, at 10:02 PM, Kurt Leinenweber via MSA-talk >> <msa-talk@minlists.org <mailto:msa-talk@minlists.org>> wrote: >> >> Yeah, for Pete's sake, please acknowledge the source of that great >> video.  I see it without acknowledgment all the time.  Perhaps people >> don't know where the video came from.  Yagi-sensei also told me that >> the making the crystal sink was very difficult.  I made a bad joke >> when I watched it with him in 1990 and said, "Oh, the camera was >> turned upside-down!"  I don't think he liked the joke.  But, the >> monoclinic shape of the crystal is unmistakeable and so I think the >> film is authentic.  Thanks for listening! >> >> - Kurt >> >> -----Original Message----- >> From: Sébastien Merkel <sebastien.merkel@univ-lille.fr >> <mailto:sebastien.merkel@univ-lille.fr>> >> Sent: Wednesday, February 24, 2021 2:00 PM >> To: Kurt Leinenweber <KURTL@asu.edu <mailto:KURTL@asu.edu>>; Robert >> Bodnar <rjb@vt.edu <mailto:rjb@vt.edu>>; Fred Marton >> <fmarton@bergen.edu <mailto:fmarton@bergen.edu>>; >> msa-talk@minlists.org <mailto:msa-talk@minlists.org>; John Brady >> <jbrady@smith.edu <mailto:jbrady@smith.edu>> >> Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of >> decompression melting? >> >> >> Hi, >> >> Here are the videos from Yagi's lab at ISSP: >> https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ >> <https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$> >> >> >> I did not put them on youtube or any public website since I do not own >> their rights but feel free to use them. Just acknowledge T. Yagi at >> ISSP, Univ. of Tokyo. >> >> He told me that the ice VI crystal sinking had been a challenge. It >> was hard to keep the focus on the DAC while rotating it and capturing >> a video at the time. >> >> Best, >> >> -- >> Sébastien Merkel >> >> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ >> <https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$> >> >> Tel:    +33 (0)3 20 43 65 16 >> E-mail: sebastien.merkel@univ-lille.fr >> <mailto:sebastien.merkel@univ-lille.fr> >> >> Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : >>> Hi,  Japan Broadcasting Corporation (NHK) made a beautiful video >>> showing an ice V crystal sinking in the diamond cell (instead of >>> floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a >>> postdoc).  I think I still have a videotape copy but it is probably >>> available on the web.  I have seen it used by others in seminar >>> lectures (without acknowledgment) including one or more of the groups >>> mentioned here!  So that is probably what you saw... >>> >>> - Kurt >>> >>> >>> >>> >>> >>> -----Original Message----- >>> From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> >>> Sent: Wednesday, February 24, 2021 9:05 AM >>> To: Fred Marton <fmarton@bergen.edu> >>> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; >>> msa-talk@minlists.org >>> Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of >>> decompression melting? >>> >>> I do recall seeing videos of this several years ago - maybe from >>> I-Ming Chou’s group or from Russ Hemley’s group? >>> >>> >>>> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk >>>> <msa-talk@minlists.org> wrote: >>>> >>>> A video of this would be great! >>>> >>>> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk >>>> <msa-talk@minlists.org> wrote: >>>> >>>> Not everyone has one, but pure water in the diamond anvil cell works >>>> well. You can look into your diamond cell with a microscope and >>>> camera and project the image. >>>> >>>> As you increase pressure to ~1 GPa, you form ice VI at ambient >>>> temperature, which you can melt by releasing pressure. >>>> >>>> >>>> -- >>>> Sébastien Merkel >>>> >>>> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >>>> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >>>> Tel:    +33 (0)3 20 43 65 16 >>>> E-mail: sebastien.merkel@univ-lille.fr >>>> >>>> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >>>>> Hi Mike, >>>>> >>>>> I have never tried it, but gallium seems like a good candidate but >>>>> for the opposite effect.  The liquid is more dense than the solid, >>>>> so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so >>>>> with just a little heating you can get it near its melting point in >>>>> the lab.  Application of a little pressure should melt it.  It >>>>> might be hard to observe in a vise, since as soon as pressure is >>>>> released (i.e. a droplet) it will freeze. >>>>> >>>>> Mark >>>>> >>>>> >>>>> -----Original Message----- >>>>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >>>>> Sent: Tuesday, February 23, 2021 2:14 PM >>>>> To: msa-talk@minlists.org >>>>> Subject: [MSA-talk] Classroom demonstration of decompression melting? >>>>> >>>>> Hello all- >>>>> >>>>> Does anyone know of a demonstration of decompression melting that >>>>> could be done "live" in a classroom? Ideally a nontoxic material >>>>> that is solid under compression (perhaps held in a vise) at near >>>>> room temperatures and visibly melts a bit when the pressure is >>>>> released. I know, too much to ask for. >>>>> >>>>> Cheers, >>>>> Mike >>>>> >>>>> ___________________________________________________ >>>>> Dr J. Michael Palin >>>>> Department of Geology >>>>> University of Otago >>>>> PO Box 56, Dunedin 9054 (post) >>>>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >>>>> +64-3-479-9083 (office) >>>>> +64-3-479-7527 (fax) >>>>> +64-3-479-7519 (admin) >>>>> ORCID 0000-0002-4972-7302 >>>>> _______________________________ >>>>> Who will prefer the jingle of jade pendants If they once have heard >>>>> stone growing in a cliff? >>>>> - Lao Tzu >>>>> _______________________________________________ >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>>> an email to msa-talk-leave@minlists.org >>>>> _______________________________________________ >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >>>>> an email to msa-talk-leave@minlists.org >>>>> >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>>> email to msa-talk-leave@minlists.org >>>> >>>> >>>> -- >>>> Fred Marton, PhD >>>> Department of Physical Sciences >>>> Bergen Community College >>>> 400 Paramus Rd. >>>> Paramus, NJ  07652-1508 >>>> +1-201-493-7518 >>>> _______________________________________________ >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>>> email to msa-talk-leave@minlists.org >>> _______________________________________________ >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >>> email to msa-talk-leave@minlists.org >>> >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org >> To unsubscribe send an email to msa-talk-leave@minlists.org >

Thanks for uploading these (and for the original links). The info about the pressure conditions in the description are nice to have, too. Fred On Wed, Mar 3, 2021 at 9:37 AM Sébastien Merkel via MSA-talk < msa-talk@minlists.org> wrote: > > Hello all, > > The ice VI videos were quite successful! They were downloaded 300 times. > > We talked with Yagi-sensei and he agreed to have them on youtube. > > I uploaded them yesterday so everyone can find them easily: > - https://www.youtube.com/watch?v=pGuYHmbkkZw > - https://www.youtube.com/watch?v=dER6E2cb-y4 > > Best, > > -- > Sébastien Merkel > > UMET - Unité Matériaux et Transformations > Université de Lille - CNRS > http://merkel.texture.rocks/ > Tel: +33 (0)3 20 43 65 16 > E-mail: sebastien.merkel@univ-lille.fr > > Le 26/02/2021 à 09:41, Christian Schmidt a écrit : > > Thank you for the videos! I agree, nucleating and melting ice VI is a > > great classroom experiment. One can demonstrate that ice VI is denser > > than the liquid simply by focusing on the culet of the upper anvil, and > > letting a single ice VI crystal grow from the bottom upward. We used to > > show this to the public in pre-covid times. > > Making a good video of this is much harder. > > > > Christian > > > > Christian Schmidt > > GFZ German Research Center for Geosciences > > Section 3.6 Chemistry and Physics of Earth Materials > > Telegrafenberg D324 > > 14473 Potsdam > > Germany > > > > Tel. (office)+49 (331) 288-1406 > > Tel. (lab)+49 (331) 288-1850 or -1478 or -1499 > > Fax +49 (331) 288-1402 > > E-mailChristian.Schmidt@gfz-potsdam.de > > <mailto:Christian.Schmidt@gfz-potsdam.de> > > > >> On Feb 24, 2021, at 10:02 PM, Kurt Leinenweber via MSA-talk > >> <msa-talk@minlists.org <mailto:msa-talk@minlists.org>> wrote: > >> > >> Yeah, for Pete's sake, please acknowledge the source of that great > >> video. I see it without acknowledgment all the time. Perhaps people > >> don't know where the video came from. Yagi-sensei also told me that > >> the making the crystal sink was very difficult. I made a bad joke > >> when I watched it with him in 1990 and said, "Oh, the camera was > >> turned upside-down!" I don't think he liked the joke. But, the > >> monoclinic shape of the crystal is unmistakeable and so I think the > >> film is authentic. Thanks for listening! > >> > >> - Kurt > >> > >> -----Original Message----- > >> From: Sébastien Merkel <sebastien.merkel@univ-lille.fr > >> <mailto:sebastien.merkel@univ-lille.fr>> > >> Sent: Wednesday, February 24, 2021 2:00 PM > >> To: Kurt Leinenweber <KURTL@asu.edu <mailto:KURTL@asu.edu>>; Robert > >> Bodnar <rjb@vt.edu <mailto:rjb@vt.edu>>; Fred Marton > >> <fmarton@bergen.edu <mailto:fmarton@bergen.edu>>; > >> msa-talk@minlists.org <mailto:msa-talk@minlists.org>; John Brady > >> <jbrady@smith.edu <mailto:jbrady@smith.edu>> > >> Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of > >> decompression melting? > >> > >> > >> Hi, > >> > >> Here are the videos from Yagi's lab at ISSP: > >> > https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ > >> < > https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$> > > >> > >> > >> I did not put them on youtube or any public website since I do not own > >> their rights but feel free to use them. Just acknowledge T. Yagi at > >> ISSP, Univ. of Tokyo. > >> > >> He told me that the ice VI crystal sinking had been a challenge. It > >> was hard to keep the focus on the DAC while rotating it and capturing > >> a video at the time. > >> > >> Best, > >> > >> -- > >> Sébastien Merkel > >> > >> UMET - Unité Matériaux et Transformations Université de Lille - CNRS > >> > https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ > >> < > https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$> > > >> > >> Tel: +33 (0)3 20 43 65 16 > >> E-mail: sebastien.merkel@univ-lille.fr > >> <mailto:sebastien.merkel@univ-lille.fr> > >> > >> Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : > >>> Hi, Japan Broadcasting Corporation (NHK) made a beautiful video > >>> showing an ice V crystal sinking in the diamond cell (instead of > >>> floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a > >>> postdoc). I think I still have a videotape copy but it is probably > >>> available on the web. I have seen it used by others in seminar > >>> lectures (without acknowledgment) including one or more of the groups > >>> mentioned here! So that is probably what you saw... > >>> > >>> - Kurt > >>> > >>> > >>> > >>> > >>> > >>> -----Original Message----- > >>> From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> > >>> Sent: Wednesday, February 24, 2021 9:05 AM > >>> To: Fred Marton <fmarton@bergen.edu> > >>> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; > >>> msa-talk@minlists.org > >>> Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of > >>> decompression melting? > >>> > >>> I do recall seeing videos of this several years ago - maybe from > >>> I-Ming Chou’s group or from Russ Hemley’s group? > >>> > >>> > >>>> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk > >>>> <msa-talk@minlists.org> wrote: > >>>> > >>>> A video of this would be great! > >>>> > >>>> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk > >>>> <msa-talk@minlists.org> wrote: > >>>> > >>>> Not everyone has one, but pure water in the diamond anvil cell works > >>>> well. You can look into your diamond cell with a microscope and > >>>> camera and project the image. > >>>> > >>>> As you increase pressure to ~1 GPa, you form ice VI at ambient > >>>> temperature, which you can melt by releasing pressure. > >>>> > >>>> > >>>> -- > >>>> Sébastien Merkel > >>>> > >>>> UMET - Unité Matériaux et Transformations Université de Lille - CNRS > >>>> > https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ > >>>> Tel: +33 (0)3 20 43 65 16 > >>>> E-mail: sebastien.merkel@univ-lille.fr > >>>> > >>>> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : > >>>>> Hi Mike, > >>>>> > >>>>> I have never tried it, but gallium seems like a good candidate but > >>>>> for the opposite effect. The liquid is more dense than the solid, > >>>>> so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so > >>>>> with just a little heating you can get it near its melting point in > >>>>> the lab. Application of a little pressure should melt it. It > >>>>> might be hard to observe in a vise, since as soon as pressure is > >>>>> released (i.e. a droplet) it will freeze. > >>>>> > >>>>> Mark > >>>>> > >>>>> > >>>>> -----Original Message----- > >>>>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> > >>>>> Sent: Tuesday, February 23, 2021 2:14 PM > >>>>> To: msa-talk@minlists.org > >>>>> Subject: [MSA-talk] Classroom demonstration of decompression melting? > >>>>> > >>>>> Hello all- > >>>>> > >>>>> Does anyone know of a demonstration of decompression melting that > >>>>> could be done "live" in a classroom? Ideally a nontoxic material > >>>>> that is solid under compression (perhaps held in a vise) at near > >>>>> room temperatures and visibly melts a bit when the pressure is > >>>>> released. I know, too much to ask for. > >>>>> > >>>>> Cheers, > >>>>> Mike > >>>>> > >>>>> ___________________________________________________ > >>>>> Dr J. Michael Palin > >>>>> Department of Geology > >>>>> University of Otago > >>>>> PO Box 56, Dunedin 9054 (post) > >>>>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand > >>>>> +64-3-479-9083 (office) > >>>>> +64-3-479-7527 (fax) > >>>>> +64-3-479-7519 (admin) > >>>>> ORCID 0000-0002-4972-7302 > >>>>> _______________________________ > >>>>> Who will prefer the jingle of jade pendants If they once have heard > >>>>> stone growing in a cliff? > >>>>> - Lao Tzu > >>>>> _______________________________________________ > >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send > >>>>> an email to msa-talk-leave@minlists.org > >>>>> _______________________________________________ > >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send > >>>>> an email to msa-talk-leave@minlists.org > >>>>> > >>>> _______________________________________________ > >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an > >>>> email to msa-talk-leave@minlists.org > >>>> > >>>> > >>>> -- > >>>> Fred Marton, PhD > >>>> Department of Physical Sciences > >>>> Bergen Community College > >>>> 400 Paramus Rd. > >>>> Paramus, NJ 07652-1508 > >>>> +1-201-493-7518 > >>>> _______________________________________________ > >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an > >>>> email to msa-talk-leave@minlists.org > >>> _______________________________________________ > >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an > >>> email to msa-talk-leave@minlists.org > >>> > >> _______________________________________________ > >> MSA-talk mailing list -- msa-talk@minlists.org > >> To unsubscribe send an email to msa-talk-leave@minlists.org > > > _______________________________________________ > MSA-talk mailing list -- msa-talk@minlists.org > To unsubscribe send an email to msa-talk-leave@minlists.org > -- Fred Marton, PhD Department of Physical Sciences Bergen Community College 400 Paramus Rd. Paramus, NJ 07652-1508 +1-201-493-7518

When I was watching one of the videos that Sebastian uploaded to YouTube, one the the suggested videos to the right was this from Matt McCluskey's lab at Washington State University, showing the melting of ice VI in a moissanite-anvil cell. McCluskey's video page ( https://labs.wsu.edu/mccluskey/videos/), which has the video embedded in it, has this description: Using a moissanite-anvil cell, pressure is applied at room temperature to freeze water. The pressure is 10 kbar (10,000 atmospheres – over 70 tons per square inch). The diameter of the hole is 0.6 mm. *Water becoming ice VI.* The ice begins to form on the outer ring of the sample and progresses towards the center. The entire sample is converted to ice VI in less than a second. The ruby chip, used for pressure calibration, is visible in the upper left of the sample. *Ice VI becoming water.* After the pressure is slowly released, the ice cracks and the phase change begins. The pressure continues to drop inside the gasket. The ice breaks up into smaller pieces that coalesce into larger ones, but the total mass of the ice gets smaller. Eventually only liquid water remains. On Wed, Mar 3, 2021 at 9:45 AM Fred Marton <fmarton@bergen.edu> wrote: > Thanks for uploading these (and for the original links). The info about > the pressure conditions in the description are nice to have, too. > > Fred > > On Wed, Mar 3, 2021 at 9:37 AM Sébastien Merkel via MSA-talk < > msa-talk@minlists.org> wrote: > >> >> Hello all, >> >> The ice VI videos were quite successful! They were downloaded 300 times. >> >> We talked with Yagi-sensei and he agreed to have them on youtube. >> >> I uploaded them yesterday so everyone can find them easily: >> - https://www.youtube.com/watch?v=pGuYHmbkkZw >> - https://www.youtube.com/watch?v=dER6E2cb-y4 >> >> Best, >> >> -- >> Sébastien Merkel >> >> UMET - Unité Matériaux et Transformations >> Université de Lille - CNRS >> http://merkel.texture.rocks/ >> Tel: +33 (0)3 20 43 65 16 >> E-mail: sebastien.merkel@univ-lille.fr >> >> Le 26/02/2021 à 09:41, Christian Schmidt a écrit : >> > Thank you for the videos! I agree, nucleating and melting ice VI is a >> > great classroom experiment. One can demonstrate that ice VI is denser >> > than the liquid simply by focusing on the culet of the upper anvil, and >> > letting a single ice VI crystal grow from the bottom upward. We used to >> > show this to the public in pre-covid times. >> > Making a good video of this is much harder. >> > >> > Christian >> > >> > Christian Schmidt >> > GFZ German Research Center for Geosciences >> > Section 3.6 Chemistry and Physics of Earth Materials >> > Telegrafenberg D324 >> > 14473 Potsdam >> > Germany >> > >> > Tel. (office)+49 (331) 288-1406 >> > Tel. (lab)+49 (331) 288-1850 or -1478 or -1499 >> > Fax +49 (331) 288-1402 >> > E-mailChristian.Schmidt@gfz-potsdam.de >> > <mailto:Christian.Schmidt@gfz-potsdam.de> >> > >> >> On Feb 24, 2021, at 10:02 PM, Kurt Leinenweber via MSA-talk >> >> <msa-talk@minlists.org <mailto:msa-talk@minlists.org>> wrote: >> >> >> >> Yeah, for Pete's sake, please acknowledge the source of that great >> >> video. I see it without acknowledgment all the time. Perhaps people >> >> don't know where the video came from. Yagi-sensei also told me that >> >> the making the crystal sink was very difficult. I made a bad joke >> >> when I watched it with him in 1990 and said, "Oh, the camera was >> >> turned upside-down!" I don't think he liked the joke. But, the >> >> monoclinic shape of the crystal is unmistakeable and so I think the >> >> film is authentic. Thanks for listening! >> >> >> >> - Kurt >> >> >> >> -----Original Message----- >> >> From: Sébastien Merkel <sebastien.merkel@univ-lille.fr >> >> <mailto:sebastien.merkel@univ-lille.fr>> >> >> Sent: Wednesday, February 24, 2021 2:00 PM >> >> To: Kurt Leinenweber <KURTL@asu.edu <mailto:KURTL@asu.edu>>; Robert >> >> Bodnar <rjb@vt.edu <mailto:rjb@vt.edu>>; Fred Marton >> >> <fmarton@bergen.edu <mailto:fmarton@bergen.edu>>; >> >> msa-talk@minlists.org <mailto:msa-talk@minlists.org>; John Brady >> >> <jbrady@smith.edu <mailto:jbrady@smith.edu>> >> >> Subject: Re: [MSA-talk] Re: [EXT] Re: Classroom demonstration of >> >> decompression melting? >> >> >> >> >> >> Hi, >> >> >> >> Here are the videos from Yagi's lab at ISSP: >> >> >> https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$ >> >> < >> https://urldefense.com/v3/__https://filesender.renater.fr/?s=download&token=bb336d91-7851-4783-88b4-f0e27f2a6208__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5Jkulrn-3fUm$> >> >> >> >> >> >> >> I did not put them on youtube or any public website since I do not own >> >> their rights but feel free to use them. Just acknowledge T. Yagi at >> >> ISSP, Univ. of Tokyo. >> >> >> >> He told me that the ice VI crystal sinking had been a challenge. It >> >> was hard to keep the focus on the DAC while rotating it and capturing >> >> a video at the time. >> >> >> >> Best, >> >> >> >> -- >> >> Sébastien Merkel >> >> >> >> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >> >> >> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$ >> >> < >> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JvUD2xWRyAVskM-WLQWK5fElB8n-wsg9TgXIv2sJtcTR11nXI6Q34gBu5JkuluaiGydS$> >> >> >> >> >> Tel: +33 (0)3 20 43 65 16 >> >> E-mail: sebastien.merkel@univ-lille.fr >> >> <mailto:sebastien.merkel@univ-lille.fr> >> >> >> >> Le 24/02/2021 à 18:20, Kurt Leinenweber a écrit : >> >>> Hi, Japan Broadcasting Corporation (NHK) made a beautiful video >> >>> showing an ice V crystal sinking in the diamond cell (instead of >> >>> floating), in Takehiko Yagi's lab at ISSP back in 1989-1990 (I was a >> >>> postdoc). I think I still have a videotape copy but it is probably >> >>> available on the web. I have seen it used by others in seminar >> >>> lectures (without acknowledgment) including one or more of the groups >> >>> mentioned here! So that is probably what you saw... >> >>> >> >>> - Kurt >> >>> >> >>> >> >>> >> >>> >> >>> >> >>> -----Original Message----- >> >>> From: Robert Bodnar via MSA-talk <msa-talk@minlists.org> >> >>> Sent: Wednesday, February 24, 2021 9:05 AM >> >>> To: Fred Marton <fmarton@bergen.edu> >> >>> Cc: Sébastien Merkel <sebastien.merkel@univ-lille.fr>; >> >>> msa-talk@minlists.org >> >>> Subject: [MSA-talk] Re: [EXT] Re: Classroom demonstration of >> >>> decompression melting? >> >>> >> >>> I do recall seeing videos of this several years ago - maybe from >> >>> I-Ming Chou’s group or from Russ Hemley’s group? >> >>> >> >>> >> >>>> On Feb 24, 2021, at 10:47 AM, Fred Marton via MSA-talk >> >>>> <msa-talk@minlists.org> wrote: >> >>>> >> >>>> A video of this would be great! >> >>>> >> >>>> On Wed, Feb 24, 2021 at 10:26 AM Sébastien Merkel via MSA-talk >> >>>> <msa-talk@minlists.org> wrote: >> >>>> >> >>>> Not everyone has one, but pure water in the diamond anvil cell works >> >>>> well. You can look into your diamond cell with a microscope and >> >>>> camera and project the image. >> >>>> >> >>>> As you increase pressure to ~1 GPa, you form ice VI at ambient >> >>>> temperature, which you can melt by releasing pressure. >> >>>> >> >>>> >> >>>> -- >> >>>> Sébastien Merkel >> >>>> >> >>>> UMET - Unité Matériaux et Transformations Université de Lille - CNRS >> >>>> >> https://urldefense.com/v3/__http://merkel.texture.rocks/__;!!IKRxdwAv5BmarQ!JVpjgucslHOt_B3PEzJT91Scls30g21amM8XNqKjbmxCNEM9kfblTUqcvnDow2DxQXmd$ >> >>>> Tel: +33 (0)3 20 43 65 16 >> >>>> E-mail: sebastien.merkel@univ-lille.fr >> >>>> >> >>>> Le 23/02/2021 à 21:51, Mark Rivers via MSA-talk a écrit : >> >>>>> Hi Mike, >> >>>>> >> >>>>> I have never tried it, but gallium seems like a good candidate but >> >>>>> for the opposite effect. The liquid is more dense than the solid, >> >>>>> so it melts as you apply pressure. It melts at 29.8 C (85.6 F) so >> >>>>> with just a little heating you can get it near its melting point in >> >>>>> the lab. Application of a little pressure should melt it. It >> >>>>> might be hard to observe in a vise, since as soon as pressure is >> >>>>> released (i.e. a droplet) it will freeze. >> >>>>> >> >>>>> Mark >> >>>>> >> >>>>> >> >>>>> -----Original Message----- >> >>>>> From: Mike Palin via MSA-talk <msa-talk@minlists.org> >> >>>>> Sent: Tuesday, February 23, 2021 2:14 PM >> >>>>> To: msa-talk@minlists.org >> >>>>> Subject: [MSA-talk] Classroom demonstration of decompression >> melting? >> >>>>> >> >>>>> Hello all- >> >>>>> >> >>>>> Does anyone know of a demonstration of decompression melting that >> >>>>> could be done "live" in a classroom? Ideally a nontoxic material >> >>>>> that is solid under compression (perhaps held in a vise) at near >> >>>>> room temperatures and visibly melts a bit when the pressure is >> >>>>> released. I know, too much to ask for. >> >>>>> >> >>>>> Cheers, >> >>>>> Mike >> >>>>> >> >>>>> ___________________________________________________ >> >>>>> Dr J. Michael Palin >> >>>>> Department of Geology >> >>>>> University of Otago >> >>>>> PO Box 56, Dunedin 9054 (post) >> >>>>> 360 Leith Street, North Dunedin 9016 (courier) New Zealand >> >>>>> +64-3-479-9083 (office) >> >>>>> +64-3-479-7527 (fax) >> >>>>> +64-3-479-7519 (admin) >> >>>>> ORCID 0000-0002-4972-7302 >> >>>>> _______________________________ >> >>>>> Who will prefer the jingle of jade pendants If they once have heard >> >>>>> stone growing in a cliff? >> >>>>> - Lao Tzu >> >>>>> _______________________________________________ >> >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >> >>>>> an email to msa-talk-leave@minlists.org >> >>>>> _______________________________________________ >> >>>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >> >>>>> an email to msa-talk-leave@minlists.org >> >>>>> >> >>>> _______________________________________________ >> >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >> an >> >>>> email to msa-talk-leave@minlists.org >> >>>> >> >>>> >> >>>> -- >> >>>> Fred Marton, PhD >> >>>> Department of Physical Sciences >> >>>> Bergen Community College >> >>>> 400 Paramus Rd. >> >>>> Paramus, NJ 07652-1508 >> >>>> +1-201-493-7518 >> >>>> _______________________________________________ >> >>>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send >> an >> >>>> email to msa-talk-leave@minlists.org >> >>> _______________________________________________ >> >>> MSA-talk mailing list -- msa-talk@minlists.org To unsubscribe send an >> >>> email to msa-talk-leave@minlists.org >> >>> >> >> _______________________________________________ >> >> MSA-talk mailing list -- msa-talk@minlists.org >> >> To unsubscribe send an email to msa-talk-leave@minlists.org >> > >> _______________________________________________ >> MSA-talk mailing list -- msa-talk@minlists.org >> To unsubscribe send an email to msa-talk-leave@minlists.org >> > > > -- > Fred Marton, PhD > Department of Physical Sciences > Bergen Community College > 400 Paramus Rd. > Paramus, NJ 07652-1508 > +1-201-493-7518 > -- Fred Marton, PhD Department of Physical Sciences Bergen Community College 400 Paramus Rd. Paramus, NJ 07652-1508 +1-201-493-7518