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Because school water quality is “suitable,” students raised two stalactites on the sink. They water them daily — one month later the rocks look like this.
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Because school water quality is “suitable,” students raised two stalactites on the sink. They water them daily — one month later the rocks look like this.
This is not a cute experiment. It is extremely hard, barely treated water depositing heavy mineral scale in weeks.
When
时政
(
twitter.com)
00:00:08
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Elon Musk: When we started SpaceX, we knew nothing about rockets.
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Elon Musk: When we started SpaceX, we knew nothing about rockets.
“In the beginning, we knew nothing about rockets, and our first three Falcon 1 missions failed, nearly bankrupting us. We barely survived with the fourth launch—if it had failed, the company would have collapsed.
btc
(
twitter.com)
00:00:44
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Marc Andreessen: “I’ve only met two people who are completely transparent in public about what they say in private: Elon and Trump.”
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Marc Andreessen: “I’ve only met two people who are completely transparent in public about what they say in private: Elon and Trump.”
“When Elon says something, it sounds like crazy shit, but in his mind, it's true. Is he always right? No. Sometimes the rockets crash, sometimes
btc
(
twitter.com)
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