How did McCarthyism reach such a level? There was a genuine fear of communism in America that McCarthy used to accelerate his rise to power. McCarthyism is named after Joseph McCarthy, who was a senator from Wisconsin until his death in 1957. McCarthyism started in 1947 and it ended in 1959, two years after McCarthy […]
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Why do some things smell good and some things smell bad? The reason things smell good or bad is a combination of learned experiences and evolution. We smell in the same way that we taste. Everything around us is made of molecules and some of these molecules are released. If they happen to be released
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Why is Lake Titicaca so high up? It was formed in a hollow in the mountain and is replenished by melting glaciers. Lake Titicaca is located in the Andes mountains, on the border of Bolivia and Peru. Its surface is 3,812 m above sea level. It if often thought to be the highest lake in
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Why is stainless steel stainless? Stainless steel isn’t actually stainless, but a metal that is able to resist corrosion. Stainless steel is a type of metal that is able to resist corrosion. A lot of metals corrode when they are exposed to oxygen. Oxygen is a very reactive molecule, which is one of the reasons
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What causes the monsoon? The monsoons are caused by a wind change between the seasons. When we picture a monsoon, many of us think of the monsoon season that comes to India every year, but India isn’t the only country to get a monsoon. Monsoons occur across most of Southern Asia and Northern Australia. Across
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Why do we get diarrhea? We get diarrhea because the body is trying to rid itself of some kind of infection, usually bacterial, viral, or parasitic. Diarrhea is a sign that the body is sick and is trying to fix itself. Diarrhea can also be caused by other illnesses or e, but infections are the
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Why does entropy happen? Entropy happens because there are vastly more ways a system can be in disorder than it can be in order. Entropy is explained in the second law of thermodynamics. It says that the state of entropy of an isolated system will always increase over time. It has been rewritten since it
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When did exams start? Exams started in China in 605 AD. Modern schools, universities, and other educational institutions have complex systems of examinations. The purpose of them is to rank students, decide if people pass or fail, see if schools are teaching successfully, see if students are learning successfully, and many other reasons. There are
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Why are coconut crabs so big? Coconut crabs are big because they need enough power to be able to crack coconuts. Coconut crabs live on islands in the Indian and Pacific Ocean. They are enormous. They weigh about 4 kg and they have a leg span that can be over 1 m. They are not
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Which came first, the chicken or the egg? It depends on how you think about it, but the egg came first evolutionarily. Chickens were domesticated about 10,000 years ago and eggs evolved about 350 million years ago. This is one of those questions where the point is not the answer, but the thought process along
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