When I worked at the W. M. Keck Observatory on the 13,796 feet very high altitude summit of Mauna Kea, we would routinely be engulfed in cold clouds of helium and nitrogen gas as we discharged it into...
During my time in high altitude astronomy, I routinely witnessed workers breathing medical oxygen, industrial carbon dioxide, nitrogen and helium gas as part of their daily work routine.
(n.) A gaseous element found in the atmospheres of the sun and earth and in some rare minerals.
Lives there upon any world such another as John Carter, Prince of Helium? Lives there another man who could fight his way back and forth across a warlike planet, facing savage beasts and hordes of sav...