I would like to ask how Isaac Newton specifically applied mathematics to reducing forgeries and improving coinage while he was Master of the Royal Mint.
History of Science and Mathematics Stack Exchange is a question and answer site for people interested in the history and origins of science and mathematics. It only takes a minute to sign up.Sign up to join this community
This is not mathematics, but Newton invented the ridges on coins to prevent theft. I am not sure if he invented it while he was director of the Royal Mint, but I suspect so.
In good ol times, coins were made of valuable metals (in fact, they were worth their value). Thieves would scrape the coins around the edge, thus making them smaller (but hardly noticeable the difference), to obtain a bit of that valuable metal. By making ridges on the sides, it was clear if a coin had been scraped.
Always a genius.