Why Do British People Call Raincoats "Mac's"? #Raincoat #Inventions #ScienceHistory Charles Macintosh was a chemist who discovered that rubber dissolved in naphtha could make fabric waterproof. While his first coats kept the rain out, they had a tiny problem—they smelled terrible and melted in the hot sun! Luckily, he improved the recipe. | Big Bang Bogan

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