Today I Learned@lemmy.worldEnglish · 2 years ago

TIL: Amazing Process of Cutting Gigantic Volcanic Glass to Make Crystal Balls

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TIL: Amazing Process of Cutting Gigantic Volcanic Glass to Make Crystal Balls

youtu.be

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Today I Learned@lemmy.worldEnglish · 2 years ago

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Video of people making crazy crystal balls

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aodhsishaj@lemmy.world
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2 years ago
Depends on the mass of the projectile and the size and material of the rings of the mail.

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