Thanks, Trump! — here's what happens when the world runs low on helium

Helium boils at 4.2 kelvin — colder than anything else on the periodic table. Superconducting magnets in MRI machines must be kept below 9.2 kelvin, and liquid helium is the only practical coolant to achieve this. (Liquid hydrogen boils at 20 kelvin. — Read the rest The post Thanks, Trump! — here's what happens when the world runs low on helium appeared first on Boing Boing.