Why are the police called cops? Police officers are called cops because “to cop” meant to arrest someone. There are many expressions used to refer to the police in English speaking countries. Probably the most famous expression is cop. It is so common that many police officers even refer to themselves as cops or coppers, […]
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What is the Mercator projection? It is a map projection that tries to put the countries from a sphere onto a rectangle. Almost all world maps you see, and all of the ones we learned about at school, use the Mercator projection. Because of this, we all have a distorted view of how big countries
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What were punks rebelling against? They were rebelling against the establishment, the commercialization of music, hippie culture, and the general economic hardship in the UK and Europe. The word punk probably started as an insult that the punk movement took control of and owned. Punk meant “something worthless”, “inferior”, “bad”, “a worthless person”, and “a
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How do animals sense earthquakes? No one actually knows how animals can sense earthquakes. They might be able to hear them. Possibly they can smell them. It could be that they sense the changing pressure. The surface of our planet is constantly moving and there are several hundred earthquakes a day. Many of them are
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Why did the Louvre become a museum and art gallery? It was decided that the Louvre Palace should become an art gallery during the French Revolution. There is some argument as to why the Louvre is called the Louvre. There are four competing theories. It could be because the Louvre was built on an area
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How can sunflowers clean up radiation? They take the radioactive isotopes out of the soil and combine them into their stems and flowers. There is radiation all around us, all of the time. Radiation is simply energy that moves from one place to another. The light energy that bounces of a rose and hits our
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Why are more plane crashes survivable? Because of technology, training, the way the planes are laid out, and the materials the planes are made of. Many people have a fear of flying and a lot of people have an image that flying is very dangerous. This couldn’t be further from the truth. This fear is
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What are the doldrums? They are an area of windless ocean where sailing ships used to get stuck. The doldrums are not a problem for modern shipping because they don’t rely on wind power. They are a problem for yachts and other types of sailing boats. A Salvadoran fisherman called Jose Salvador Alvarenga spent 14
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Why is a duck-billed platypus so odd? It has a beak, no teeth, lays eggs, sweats milk, has 10 sex chromosomes, has webbed feet, has fur that glows, they have no stomachs, and has venomous spurs. The duck-billed platypus is native to Australia. Its name comes from Greek and means “flat foot”. It is so
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How is a mongoose immune to snake venom? They are not immune to all snake venom, just the snakes they live around. Even then, they have resistance rather than immunity. There are different types of venom for different types of snakes. The mongoose is particularly resistant to the venom of the cobra, which is a
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