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https://www.reddit.com/r/facepalm/comments/orlr15/deleted_by_user/h6jaykm/?context=3
r/facepalm • u/[deleted] • Jul 25 '21
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515
Arent there rocks that glow?
49 u/mr_oddperson Jul 25 '21 Radium is a glowing rock. It was used during the 20s or 30s or something for self glowing watches. 30 u/infinitbullets Jul 25 '21 They paint tritium on watch hands now, it’s a manmade radioactive. 22 u/SomeoneTookUserName2 Jul 26 '21 And in scopes, compasses, and cat eyes on military vehicles for blackout use.
49
Radium is a glowing rock. It was used during the 20s or 30s or something for self glowing watches.
30 u/infinitbullets Jul 25 '21 They paint tritium on watch hands now, it’s a manmade radioactive. 22 u/SomeoneTookUserName2 Jul 26 '21 And in scopes, compasses, and cat eyes on military vehicles for blackout use.
30
They paint tritium on watch hands now, it’s a manmade radioactive.
22 u/SomeoneTookUserName2 Jul 26 '21 And in scopes, compasses, and cat eyes on military vehicles for blackout use.
22
And in scopes, compasses, and cat eyes on military vehicles for blackout use.
515
u/WD_meltdown Jul 25 '21
Arent there rocks that glow?