Why don’t more animals use two legs? Because they wouldn’t be able to balance, run as fast, and they can’t use their forelegs for anything other than standing. Walking on two legs has given us several evolutionary advantages which means the ability has been passed on. Most animals don’t get this advantage, so evolution has […]
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Why do poppies make opium? Not all poppies do make opium, but the ones that do, make it to ward off pests. There are 775 different species of poppy, known as the Papaveraceae family. Most of them produce the milky latex that becomes opium in the opium poppy, but only the papaver somniferum is able
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What are totem poles for? They have many different uses, but a common use it to show the lineage of a family or notable events that have happened and need to be remembered. They are a kind of written record for the tribe. When we watch Hollywood movies, every Native American tribe has a totem
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How do hallucinations happen? They are caused by a chemical imbalance or some kind of abnormality in the brain. All hallucinations are created by the sensory parts of our brain and they are basically firing without the stimulus. If you look at a dog, light is bouncing off the dog and entering your eyes. Your
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What was the underground railroad? It was a network of routes and people in the United States of America that helped slaves escape to freedom. It started in the end of the 18th century and ran until the end of the Civil War in 1865. Slavery has existed around the world for as long as
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What is truth serum? It is a drug that prevents people from censoring themselves so they reveal the truth. These drugs are usually barbiturates and there is no real proof that they work. People have searched for a drug that can help them get at the truth for thousands of years. The very first type
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How does a pipe organ work? By letting different amounts of air into different length pipes to produce a sound. A pipe organ works on the same principle as a whistle. A simple whistle is just a pipe. When you put enough air in one end, you can get a sound out of the other
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What is the Hudson Bay Company? It is a company that began when two French traders set up a fur trading post on Hudson Bay in 1670. The Hudson Bay Company was started to trade furs with Britain, but it was another example for Britain that they could use private enterprise to colonize parts of
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When did Britain become an island? It was connected to continental Europe by a land bridge that was destroyed 450,000 years ago. Some of the land bridge returned and that was submerged under the sea in about 6100 BC. If sea levels were a little lower than they are now, a lot more land would
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How thick is the atmosphere? The atmosphere is generally considered to be 10,000 km thick. Our atmosphere is made up of gas. It is 78% nitrogen, 21% oxygen, and one percent other gases. Those other gases are argon, carbon dioxide, helium, neon, methane, krypton, and hydrogen. There is water vapor as well, which is a
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