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TIL the samurai cloak, the Horo is a shield against incoming arrows

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N7QaN TIL Steven Spielberg's father, Arnold Spielberg, built a his own ham radio from scraps when he was 15, became an early computer pioneer in the 1950s and recently celebrated his 103rd birthday!
D1dkp TIL the inventor of the Super Soaker & Nerf Gun was a nuclear engineer, Tuskegee University Ph.D. and former NASA scientist.
OApg TIL:Nikola Tesla disagreed with the theory of atoms being composed of smaller subatomic particles, stating there was no such thing as an electron creating an electric charge
vPapR TIL that gas powered impact wrenches exist, used on the railroad for the assembly/disassembly of rail lines.
6EJgl TIL Doo-wop is considered to be one of the precursors of Punk, with bands like The Ramones borrowing the 12-bar aab pattern, and some early bands adopting the call-and-response background vocals characteristic of Doo-wop.