The Diamond Anvil...
The first diamond anvil cell at the NIST... ...ures as great as those found at the center of the Earth . It's called that because it actually u... ...onds is then pressurized. But don't get excited about the diamond: they're just about a... ...amond anvil cell/Wikipedia...
https://www.neatorama.com/2012/08/07/Diamond-Anvil/
