AJ on Instagram: "Those tiny ridges on the edge of a coin? They were Newton’s way of fighting crime. 🪙🧠 In the 1600s, coins were made of real gold and silver. People would clip the edges — shaving off tiny bits of metal — and still spend them at full value. Enter Isaac Newton. As Warden of the Royal Mint, he introduced reeding: sharp ridges carved into the coin’s edge. If someone clipped it, the damage was obvious. It was simple, brilliant, and nearly impossible to fake. So next time you feel

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Building a Tiny Dream House Step by Step 🏡 | Real Miniature Concrete Build ✨