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TIL Stunning electric-blue flames erupt from Kawah Ijen volcano in Indonesia

Read more news.nationalgeographic.com

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XEj9D TIL about Jocko Graves, a boy who touched the heart of George Washington and who died helping the American Revolution because he was too young to fight.
aePy TIL Tesla once paid an overdue hotel bill with a model of his “death beam”, warning hotel staff to never open it. After his death in 1943 the box was pried open and found to contain nothing but harmless old electrical components.
kJ855 TIL Giraffes not only just use their long necks to reach for leaves as they are grazers. When they fight for a mate, they swing their necks around at their opponent. The winner is usually the one with the longer neck since there is more torque that is produced.
m1VXM TIL the United States Postal Service used to sort mail in the back of moving buses
vKKB TIL When cats blink slowly at you it is a sign of affection referred to as a “cat kiss.”