Do you know why coins have ridges? It goes back to when coins were made from precious metals and a practice known as coin clipping. Coins that were made of precious metals -- gold and silver, had intrinsic value beyond their stated denominations. You could shave a bit off the edge of a coin, keep the clipped-off piece for yourself, and use the almost-complete coin in a subsequent transaction. Over time the coins would shrink to a point that they would be no longer useful as currency. This practice also made it very easy to counterfeit coins since the size was prone to shrink. The ridges help to stop coin clipping. The idea came from none other than Isaac Newton, the famed physicist that articulated the rules around gravity, force, motion, inertia, etc. The part of the tale that I want to focus on however is why it was Newton. The idea came toward the end of his career when Newton was Warden of the Royal Mint. This position was, typically, co...
The Preacher sought to find delightful words and to write words of truth correctly.