RT Proudofus.uk (@ProudofusUK)In 1707, two thousand sailors DROWNED.Not because of a storm.Because nobody could tell where they were at sea 🇬🇧This was the longitude problem. The deadliest puzzle in science.Parliament offered £20,000 to anyone who could solve it.Nearly four million today.Every great scientist in Europe tried. Newton. Halley. The finest minds alive.All of them failed.The man who solved it was a carpenter from Yorkshire.His name was John Harrison.No formal education. No university. No wealthy ...