› added 10 years ago

91

TIL ironically, the French flew the white flag as a symbol of military command.

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GYxa4 TIL the vast difference between a million and a billion dollars, which was out into perspective by Tom Scott on a 2D plane making it easier to visualise.
KOaJR TIL that scratching an itch feels so good because the brain sees scratching as mild pain, so it releases serotonin to provide relief from that "pain"
9Y1lG TIL that the musician Lenny Kravitz is named after his uncle who was awarded the Medal of Honor, posthumously, for his actions during the Korean War
GbEQ TIL the “wall follower” is the best-known rule for solving mazes. If the maze is “simply connected”, that is all its walls are connected together or to the maze’s outer boundary, then by keeping one hand in contact with one wall of the maze the solver is guaranteed not to get lost.
jNxep TIL that in order to dissuade Germans from invading, Julius Caesar built a bridge into their territory, marched his armies across, returned, then destroyed the bridge. The Germans got the message and never invaded.