• Scientists create first sample of metallic hydrogen
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[img]http://puu.sh/tCyU0/16609eedef.jpg[/img] [quote]Nearly a century after it was theorized, Harvard scientists report they have succeeded in creating the rarest material on the planet, which could eventually develop into one of its most valuable. Thomas D. Cabot Professor of the Natural Sciences Isaac Silvera and postdoctoral fellow Ranga Dias have long sought the material, called atomic metallic hydrogen. In addition to helping scientists answer some fundamental questions about the nature of matter, the material is theorized to have a wide range of applications, including as a room-temperature superconductor. Their research is described in a paper published today in Science. “This is the Holy Grail of high-pressure physics,” Silvera said of the quest to find the material. “It’s the first-ever sample of metallic hydrogen on Earth, so when you’re looking at it, you’re looking at something that’s never existed before.”[/quote] not sure if late but damn it's neat [url]http://news.harvard.edu/gazette/story/2017/01/a-breakthrough-in-high-pressure-physics/[/url]
Anything that could further the cause of room-temperature superconductance is good news. Even ignoring the applications, the creation of any new kind of material is a great accomplishment - let alone one this difficult to make.
[quote]“One prediction that’s very important is metallic hydrogen is predicted to be meta-stable,” Silvera said. “That means if you take the pressure off, it will stay metallic, similar to the way diamonds form from graphite under intense heat and pressure, but remain diamonds when that pressure and heat are removed.”[/quote] This is really awesome [hd]https://www.youtube.com/watch?v=1qitm5fteL0[/hd]
[quote]room-temperature superconductor[/quote] Does that mean we can create one of those levitating rails without the need for liquid nitrogen or other such things ? Because all other applications of superconductors notwithstanding, levitating platforms are cool shit.
It'll probably still be quite expensive to create powdered hydrogen, I imagine. Though if it's truly metastable in this state, it'd certainly help solve the main issue of hydrogen-powered vehicles, which is that storing the stuff is pretty expensive in itself. But if it can be pressurized into a solid metal state, and ground into powder, we'd be one step further. That is, assuming that metallic hydrogen doesn't "rust" rapidly in the presence of oxygen.
People are calling bullshit on this, just saying The Centre for Science at Extreme Conditions at Edinburgh Uni does experiments in the same way, crushing items between two diamonds. There were rumors kicking about that this particular paper was being published, and I think it's caused a bit of commotion. Apparently there's quite a few people who are discrediting the publication for some reason, I don't know exactly what; my project supervisor wouldn't divulge exactly what, but some people apparently think the paper is not up to scratch to be published, and are shocked that it's somehow been succesfully peer reviewed. These are from the same people who established the structures of Phase III of solid hydrogen, they know their stuff. [URL="https://www.chemistryworld.com/news/metallic-hydrogen-claim-faces-fiery-scrutiny/2500300.article"]Source that isn't just the grapevine[/URL] One of the key theorised uses of metallic hydrogen is this room temperature superconductor mumbo jumbo; it's calculated to be superconductive around 0*C, which compared to current "high temperature superconductors" is an absolutely immense improvement.
[QUOTE=Instant Mix;51735683]People are calling bullshit on this, just saying The Centre for Science at Extreme Conditions at Edinburgh Uni does experiments in the same way, crushing items between two diamonds. There were rumors kicking about that this particular paper was being published, and I think it's caused a bit of commotion. Apparently there's quite a few people who are discrediting the publication for some reason, I don't know exactly what; my project supervisor wouldn't divulge exactly what, but some people apparently think the paper is not up to scratch to be published, and are shocked that it's somehow been succesfully peer reviewed. These are from the same people who established the structures of Phase III of solid hydrogen, they know their stuff. [URL="https://www.chemistryworld.com/news/metallic-hydrogen-claim-faces-fiery-scrutiny/2500300.article"]Source that isn't just the grapevine[/URL] One of the key theorised uses of metallic hydrogen is this room temperature superconductor mumbo jumbo; it's calculated to be superconductive around 0*C, which compared to current "high temperature superconductors" is an absolutely immense improvement.[/QUOTE] Interesting read. As someone who is more in the Quantum Physics world, are there many instances of things in Chemistry/Materials science being published with less scruitiny than required?
[QUOTE=Jcorp;51735749]Interesting read. As someone who is more in the Quantum Physics world, are there many instances of things in Chemistry/Materials science being published with less scruitiny than required?[/QUOTE] I honestly couldn't comment, I guess it may just be a niche subject so there aren't too many people to give proper referee reports
[QUOTE=Instant Mix;51735683]People are calling bullshit on this, just saying The Centre for Science at Extreme Conditions at Edinburgh Uni does experiments in the same way, crushing items between two diamonds. There were rumors kicking about that this particular paper was being published, and I think it's caused a bit of commotion. Apparently there's quite a few people who are discrediting the publication for some reason, I don't know exactly what; my project supervisor wouldn't divulge exactly what, but some people apparently think the paper is not up to scratch to be published, and are shocked that it's somehow been succesfully peer reviewed. These are from the same people who established the structures of Phase III of solid hydrogen, they know their stuff. [URL="https://www.chemistryworld.com/news/metallic-hydrogen-claim-faces-fiery-scrutiny/2500300.article"]Source that isn't just the grapevine[/URL] One of the key theorised uses of metallic hydrogen is this room temperature superconductor mumbo jumbo; it's calculated to be superconductive around 0*C, which compared to current "high temperature superconductors" is an absolutely immense improvement.[/QUOTE] isnt it already an issue that we have no real concrete way to predict superconductivity though, like our current models are good for the range they represent but extrapolating outside them, especially from the low 100Ks up to 0 C which is a huge gap
[QUOTE=Sableye;51735776]isnt it already an issue that we have no real concrete way to predict superconductivity though, like our current models are good for the range they represent but extrapolating outside them, especially from the low 100Ks up to 0 C which is a huge gap[/QUOTE] This could be a total bullshit post, but I'll give it a bash: I don't think that's the case nowadays, the method for predicting the behaviours of these things, Density Functional Theory, seems to have gotten better over the last 10 years. A paper producing a theorised structure for Phase IV of solid hydrogen apparently ran on four desktop PCs - didn't need a supercomputer to compute. Ever since the [url=http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.97.045504]random search method tested on Silane[/url] and implemented on the [url=http://www.nature.com/nphys/journal/v3/n7/full/nphys625.html]Phase III of Solid Hydrogen[/url] has been used widespread, DFT and computational theory seem to work fine, given they were working in those pressure and temperature ranges. Could be talking bollocks though. Regardless of whether its a superconductive material or not, the article is still receiving criticism as that isn't touched upon.
[QUOTE=Instant Mix;51735683]People are calling bullshit on this, just saying The Centre for Science at Extreme Conditions at Edinburgh Uni does experiments in the same way, crushing items between two diamonds. There were rumors kicking about that this particular paper was being published, and I think it's caused a bit of commotion. Apparently there's quite a few people who are discrediting the publication for some reason, I don't know exactly what; my project supervisor wouldn't divulge exactly what, but some people apparently think the paper is not up to scratch to be published, and are shocked that it's somehow been succesfully peer reviewed. These are from the same people who established the structures of Phase III of solid hydrogen, they know their stuff. [URL="https://www.chemistryworld.com/news/metallic-hydrogen-claim-faces-fiery-scrutiny/2500300.article"]Source that isn't just the grapevine[/URL] One of the key theorised uses of metallic hydrogen is this room temperature superconductor mumbo jumbo; it's calculated to be superconductive around 0*C, which compared to current "high temperature superconductors" is an absolutely immense improvement.[/QUOTE] Extraordinary claims require extraordinary evidence. Whether what Harvard achieved here is true or not, people are going to be highly skeptical. And that's a [i]good[/i] thing. It'll be a little while before it's replicated and tested by other scientists, so we should just be patient.
Is this different than the metallic hydrogen that Jupiter is thought to contain?
Aren't "room temperature"(if you live in siberia and have no electricity to heat your house) superconductors basically what fusion power needs? Holy fuck, if this isn't a load of bullshit then it will either save mankind and life on earth or the scientists will end up being shot and bagged by a bunch of mercenaries hired by oil oligarchs/rabid trumpets/both.
When I first saw this I thought this was just some minor claim to fame like "hi guys we managed to do it for 1/356th of a nanosecond" but it actually stays a metal at room temperature Technological revolution 2.0 when?
[QUOTE=Jcorp;51735749]Interesting read. As someone who is more in the Quantum Physics world, are there many instances of things in Chemistry/Materials science being published with less scruitiny than required?[/QUOTE] [Url=http://retractionwatch.com]Retraction Watch[/url] is definitely a place to watch for stuff that sneaks past peer review. One of the ones i remember quite well was [url=http://blog.chembark.com/2013/08/14/some-very-suspicious-tem-images-in-nano-letters/]Molecular Chopsticks[/url] that somehow got published.
[QUOTE=Karmah;51736574]When I first saw this I thought this was just some minor claim to fame like "hi guys we managed to do it for 1/356th of a nanosecond" but it actually stays a metal at room temperature Technological revolution 2.0 when?[/QUOTE] You'd be easily tricked into thinking that, but remember what diamonds are; they're created when carbon is exposed to extremely high pressures. It doesn't instantly turn back into graphite once it's removed from that pressure, does it?
[QUOTE=Orkel;51735590]This is really awesome [hd]https://www.youtube.com/watch?v=1qitm5fteL0[/hd][/QUOTE] What does he mean when he says wires made out of this stuff could transport electricity "without dissipation?"
A room temperature superconductor sounds like it'd be very useful for creating quantum computers that don't require a room full of equipment to super cool it during operation
[QUOTE=Gray Altoid;51736863]What does he mean when he says wires made out of this stuff could transport electricity "without dissipation?"[/QUOTE] As in there's no resistivity, therefore no electrical energy gets lost in transmission. The amount of energy that is lost is directly related to the resistance, which is also directly related to current. By using transformers to step up voltage (and therefore step down current), you reduce the amount of energy you lose. This is why the huge transmission pylons you see are at incredibly high voltages (110-500kV), because that therefore means their current is miniscule, and lose far less energy than if their voltages were lower.
Given the process of creating this stuff, something tells me that it'll be incredibly expensive. I don't know a lot about chemistry, but metallic hydrogen, given how simple the atom is, would probably be THE most conductive material that could exist, right?
[QUOTE=NeverGoWest;51736462]Aren't "room temperature"(if you live in siberia and have no electricity to heat your house) superconductors basically what fusion power needs? Holy fuck, if this isn't a load of bullshit then it will either save mankind and life on earth or the scientists will end up being shot and bagged by a bunch of mercenaries hired by oil oligarchs/rabid trumpets/both.[/QUOTE] Cease assuming all people who support trump as anti science. The speech " I am you voice" was a sign someone was listening to swing voter concerns, even if it was a con.
[QUOTE=Guriosity;51738776]Cease assuming all people who support trump as anti science. The speech " I am you voice" was a sign someone was listening to swing voter concerns, even if it was a con.[/QUOTE] Honestly I think that was a passing comment and not really relevant, but unfortunately there are valid reasons for the scientific community to be very weary and untrusting of Trump and his supporters - just look at the gag order and removal of information on climate change. This isn't an opinion, this is a fact - he's negatively affecting science.
Can we not talk about trump in this thread please? Would tech like this make things like gpus and cpus more efficient? Because of a lower resistance?
[QUOTE=da space core;51740349]Can we not talk about trump in this thread please? Would tech like this make things like gpus and cpus more efficient? Because of a lower resistance?[/QUOTE] Of all the uses for metallic hydrogen; will it run Crysis
[QUOTE=da space core;51740349]Can we not talk about trump in this thread please? Would tech like this make things like gpus and cpus more efficient? Because of a lower resistance?[/QUOTE] I assume in part, but deleting data (which is done in any irreversible computations) necessarily releases some heat too. It probably would help a lot with electronic wire wear, but that doesn't seem to be a huge issue compared to other things that can go wrong.
This checks out. It also explains who killed all of those galaxies...
You'd need a huge fucking ramscoop to pull that off.
[QUOTE=Doozle;51740433]Of all the uses for metallic hydrogen; will it run Crysis[/QUOTE] no but it will run doom
[QUOTE=Doozle;51740433]Of all the uses for metallic hydrogen; will it run Crysis[/QUOTE] This is all we advance humanity for. To ensure we can actually run Crysis. Nothing else really matters. The quality of life improvements are just side effects.
When metal hydrogen rusts, does it become water?
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