3 ms·
Except for gaseous hydrogen and helium, and some spacecraft, all other atoms remain on the earth and are recoverable with enough energy and effort.
by nancyminusone 7mo ago
Except for gaseous hydrogen and helium, and some spacecraft, all other atoms remain on the earth and are recoverable with enough energy and effort.
- philipkglass 7mo agoOne more exception: uranium. It actually splits into smaller atoms when it's used as fuel.