Reeding: the simple groove that made theft impossible to hide. Isaac Newton's second career hunting counterfeiters and sending them to the gallows. Why modern coins are worthless base metal, making clipping pointless. The two surprising reasons we still keep the ridges today — vending machines, and blind users who tell coins apart by touch. It turns out one of the oldest objects you own is hiding a real mystery in plain sight. Drop a comment: what's something you use every day and never questioned? Thanks for watching. 0:00 Feel The Edge 0:23 The Obvious Wrong Answer 0:49 When Metal Was Money 1:04 The Crime Called Clipping 2:04 Newton's War 3:10 An Ornament And A Safeguard 4:39 The War We Won 5:25 The Ridges' New Careers
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