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. Liquid nitrogen at 77. Nothing else comes close.
Qatar produces about a…
