Eating lots of carrots will turn the pigment in your skin orange.
(Carotenaemia is the presence in blood of the yellow pigment carotene from excessive intake of carrots or other vegetables or fruit containing the pigment, which results in increased serum carotenoids. Strangely carotene is the same substance that makes leaves turn orange in the autumn. But you would have to eat a silly amount of carrots, and eating them in moderation will help your eyes!)
The Roman Catholic Church did not officially acknowledge that the earth revolves around the sun until the mid 1990s.
(In 1992, the Roman Catholic Church finally repealed their edict against Galileo. The Church pardoned him and admitted that the heliocentric theory was correct. This pardon came 350 years after Galileo's death. Ah well, better late than never.)
The mother of Mike Nesmith, a member of the rock group The Monkees, invented liquid paper.
(Bette Nesmith Graham was born Bette Claire McMurray in Dallas, Texas. She was a divorcee and to support herself as a single mother, she worked as a secretary at a bank in Texas.
It was very difficult to erase mistakes made by early electric typewriters. But she was a talented painter and she realized that when artists made a mistake, they painted over it, so she decided to do this with typewriter mistakes. She put some tempera water-based paint in a bottle and used that to correct any mistakes.
She secretly used her white correction paint for five years, making some improvements with help from her son's high school chemistry teacher. Some bosses admonished her against using it, but coworkers frequently sought her "paint out." She eventually began marketing her typewriter correction fluid as "Mistake Out" in 1956. The name was later changed to Liquid Paper when she be…
According to some theories the monkey wrench was invented by London born blacksmith Charles Moncke.
(A monkey wrench is a tool which has parts that can be moved to tighten or unfasten any size of nut and bolt, not to be confused with a spanner, which has a fixed size. Allegedly it was called Moncke's wrench after the inventor. Of course the Americans say it was invented by a certain Charles Moncky of Baltimore who patented it in 1830. Unfortunately for this explanation, the term is British in origin and predates Moncky by some decades, in addition there are 17th Century examples of this tool which were probably manufactured in London. Either way, a monkey wrench has nothing to do with monkeys, which is a bit disappointing really.)
The number sign (#) is called an an octothorpe, octothorp, octathorp, or even octatherp.
(In the United States, the symbol is usually called the pound sign, and the key bearing this symbol on touch-tone phones is called the pound key. But in the UK it is never called the pound sign since the term "pound sign" is understood to mean the currency symbol, £, and it is never used to refer to pounds as a unit of weight either, instead lb is used. The symbol is most often called the hash. Basically it's a confusing little sign.)