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'holy grail of high pressure physics': Researchers create metallic hydrogen

CAPSLOCKSTUCK

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U.S. scientists have succeeded in squeezing hydrogen so intensely that it has turned into a metal, creating an entirely new material that might be used as a highly efficient electricity conductor at room temperatures.

The discovery, published in the journal Science. provides the first confirmation of a theory proposed in 1935 by physicists Hillard Bell Huntington and Eugene Wigner that hydrogen, normally a gas, could occur in a metallic state if exposed to extreme pressure.

Several teams have been racing to develop metallic hydrogen, which is highly prized because of its potential as a superconductor, a material that is extremely efficient at conducting electricity.




This combination of still photos taken from video shows hydrogen magnified at different stages of compression, from gas form to metallic


'This is the holy grail of high-pressure physics,' Harvard physicist Isaac Silvera, one of the study's authors, said in a statement.

'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.'

'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 remains a diamond when that pressure and heat is removed.'

Understanding whether the material is stable is important, Silvera said, because predictions suggest metallic hydrogen could act as a superconductor at room temperatures.


The material could also provide major improvements in energy production and storage.

Because superconductors have zero resistance, superconducting coils could be used to store excess energy, which could then be used whenever it is needed.



To achieve this feat, Silvera and post-doctoral fellow Ranga Dias squeezed a tiny hydrogen sample at more than 71.7 million pounds per square inch (32.5 million kg per 6.5 square cm), greater than the pressure at the center of the Earth.

The scientists created this force using synthetic diamonds mounted opposite each other in a device known as a diamond anvil cell.




http://news.harvard.edu/gazette/story/2017/01/a-breakthrough-in-high-pressure-physics/
 
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That really blurs the definition of "metal". Is it shiny and malleable, or just conductive?
 
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:confused: He said "just under 14 degrees" but Kelvin scale is an absolute, it's not degree
 

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With Kelvin, 0K is absolute zero (-273.15°C).
Wow, never knew there was .15 too... In school ive always used 273, guess they removed the .15 to make calculations easy....

And thanks for sharing the article, if it isnt a fraud, it should be(hopefully) in the news paper.
 
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Even if accurate, it's highly unlikely that it could be done on a mass scale. Forgetting the physics required to do so, the cost alone makes impractical.
 

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The world's first piece of metallic hydrogen, created by Harvard scientists just last month, has disappeared.

The machinery used to keep the sample stable malfunctioned, leaving no sign of the metal in its wake.

The researchers claim that the material could have been lost within the machinery or could have melted under room temperature.

But some experts say that the Harvard researchers never created metallic hydrogen in the first place.



The small samples was kept at Harvard labs trapped between two-diamonds and kept at temperatures around -273°C (-460°F) to keep it stable.

It was preserved at a pressure equivalent to that at the centre of the Earth.

But an attempt to monitor this pressure using a low-intensity laser saw one of the diamonds crushed into a fine dust.

Harvard researcher Professor Isaac Silvera told the Independent that his 'heart fell' when he heard the 'click' that doomed the precious new metal.

The catastrophic system failure resulted in a total loss of the original sample.


http://www.independent.co.uk/news/s...perconductor-harvard-university-a7548221.html
 
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Metallic hydrogen may not be something we ever mass produce, but if we could find a way to produce it to coat wiring its ability to create cooper pairs at higher temperatures than anything else means everyday superconductors may become a thing, meaning physical wires with virtually unlimited bandwidth and losses, so a thin pair of wires to deliver your electricity, internet, and many other communication services everywhere.


But the physical limitations of creating it and then finding ways to use it without it decomposing will probably make this a pipe dream like fusion.
 

dorsetknob

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But some experts say that the Harvard researchers never created metallic hydrogen in the first place.



The small samples was kept at Harvard labs trapped between two-diamonds and kept at temperatures around -273°C (-460°F) to keep it stable.

It was preserved at a pressure equivalent to that at the centre of the Earth.

But an attempt to monitor this pressure using a low-intensity laser saw one of the diamonds crushed into a fine dust.

Harvard researcher Professor Isaac Silvera told the Independent that his 'heart fell' when he heard the 'click' that doomed the precious new metal.

The catastrophic system failure resulted in a total loss of the original sample.
Great way of Avoiding Peer Review and subsequent Peer humiliation :)

" Dear Harvard Science Grants Dismemberment Community
I Wish to Apply for Further Funding for my Grand Experiment
By Proving my team has managed to make metallic hydrogen
we now wish to take it to the next level and Transmute lead into Gold"
 

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They crushed a diamond. How can any one fix that problem? Something harder than diamonds? Like what?
 
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