Are cryonics possible? Cryonics might be possible in the future, but there is no way at the moment to imagine how it would be possible. The basic idea behind cryonics is that someone who is sick and cannot be healed by modern medicine is frozen when they die so that they can be revived at […]
#1265 Are cryonics possible? Read More »
How many types of plastic are there? There are many different types of plastic, but they have been grouped into 7 different types of plastic. They are PET, HDPE, PVC, LDPE, PP, PS, and other. You can tell which ones they are because of their Resin Identification Code, which has a triangle made of arrows
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Why do we laugh? Nobody knows for definite, but there are several theories. One of the theories is that we laugh as an evolved response to the passing of stress to show the rest of our herd that the danger has passed. One of the most interesting things about laughter is that it is not
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How is a pope elected? A pope is elected by the College of Cardinals and they need to get two-thirds of the vote to be elected. There have been approximately 266 popes so far. I say approximately because at some points there were two popes at the same time as different parts of the church
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How do trombones work? Trombones and all brass instruments use different methods, but they all make a variety of sounds by altering the length of the tube the air travels through. All wind instruments generally work on the same principle, although they have some major differences. The general idea is that you blow into one
#1227 How do trombones work? Read More »
What is Prince Rupert’s drop? Prince Rupert’s drop is a small, tadpole-shaped glass bead that is incredibly strong but incredibly fragile. Prince Rupert’s drops have been around for a long time and there is some thought that they were first discovered by Roman glassmakers two thousand years ago. They were first brought to Great Britain
#1219 What is Prince Rupert’s drop? Read More »
Why is the presidential inauguration on January 20th? Inauguration day is on January 20th because the 20th Amendment to the Constitution changed it in 1933. The new president of the United States of America is sworn in on January 20th. There is a big spectacle, which is attended by thousands of people. The president swears
#1204 Why is the presidential inauguration on January 20th? Read More »
Why does the year start on January 1st? The year starts on January 1st because of the Romans and then Pope Gregory XIII. Although, for most of the history of civilization, the year did not start on January 1st,, and for a lot of cultures, it still doesn’t. In fact, for the 1.4 Chinese people
#1184 Why does the year start on January 1st? Read More »
What is the difference between coal, coke, and charcoal? Charcoal is made from wood, but coal and charcoal are both sedimentary rocks that are processed differently to produce different results. Charcoal, coal, and coke all have different advantages, disadvantages, and uses. Let’s look at them one by one. Charcoal is made from wood. If you
#1179 What is the difference between coal, coke, and charcoal? Read More »
Why are there only the Suez Canal and the Panama Canal? There are only the Suez Canal and the Panama Canal because they are at the two points in the world where shipping distances can be greatly reduced. No other canal would make enough of a difference to be worth the price of building it.
#1178 Why are there only the Suez Canal and Panama Canal? Read More »
