Solid hydrogen
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Solid hydrogen is the solid state of the element hydrogen. At standard pressure, this is achieved by decreasing the temperature below hydrogen's melting point of 14.01 K. It was collected for the firs
The infrared instrument on NASA's Wide-field Infrared Survey Explorer is kept extremely cold by a spherical tank of frozen hydrogen called the cryostat. During assembly, scaffolding was built around the cryostat to give engineers full access to the spacecraft.
Diamond anvil cell
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A diamond anvil cell is a high-pressure device used in geology, engineering, and materials science experiments. It permits the compression of a small piece of material to extreme pressures, typically
Solid hydrogen
…hydrogen is extremely challenging, because hydrogen atoms interact with X-rays very weakly and only small samples of solid hydrogen can be achieved in diamond anvil cells, so that X-ray diffraction provides very limited information about the structures. Nevertheless, phase transitions can be detected by looking for abrupt…
The first diamond anvil cell in the NIST museum at Gaithersburg. Shown in the image above is the part which compresses the central assembly.
Researcher using a diamond anvil cell to study materials under deep Earth conditions.