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TIL Dave Grohl drummed for Cage the Elephant while opening for the Foo Fighters after their drummer fell ill

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6EQeQ Matter tells space how to curve, and curved space tells matter how to move. That's the basic principle behind Einstein's General Relativity, which linked, for the first time, the phenomenon of gravity with that of spacetime and relativity. Place a mass down anywhere in the Universe, and the space around it will curve in response. But if you take that mass away, or move it elsewhere, what causes the spacetime to "snap back" to its unbent position?
rRydW TIL that the word “soybean” is named after soy sauce, not the other way around.
4Xw45 TIL that the majority of the Great Wall of China has broken down or disappeared. Only sections built in the Ming Dynasty (roughly 10% of it) is still in good condition.
gMA7W TIL the story of Isaac Newton watching an apple fall out of a tree often misses an important detail, it was a windy day. The wind blew the apple at an angle as it fell. This caused Newton to wonder if an object could fall at such an angle that it never hits the ground, aka an orbit.
BMDL TIL that due to American Public Law 94-479, by the 94th Congress, George Washington is protected from being outranked by any officer in past, present, and future - so if there’s a 6 star general, Washington is automatically upgraded to 7.