View Single Post
Old 10-02-2019, 11:56 AM  
mikeworks
Confirmed User
 
Join Date: Apr 2010
Posts: 272
Helium cannot be manufactured and there is not much left in the world. Once released, this lighter than air gas escapes into space.

One of it's important uses is cooling magnets in an MRI scanner.
mikeworks is offline   Share thread on Digg Share thread on Twitter Share thread on Reddit Share thread on Facebook Reply With Quote