Metals have a crystal structure. But they're not one big crystal, they're lots of small crystals called grains. The size of the grains affects the physical properties of the metal, like hardness, toughness,... continue reading
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I'm dreaming of a white Christmas [no I'm not] YouTube: This episode Nellie Benner snorts a white crystalline powder: Cocaine. The active substance is cocaine hydrochloride and has a stimulating effect... continue reading
posted by PlayhousePals 7 years 4 months ago • 318 views • 10:35posted by Mordhaus
7 years 8 months ago • 964 views • 6:13
YouTube: Stained glass is thicker at the bottom - so is it a liquid? Earth's mantle enables plate tectonics, so is it a liquid?
posted by PlayhousePals 8 years 6 months 4 weeks ago • 471 views • 7:02- 1