How does a telescope work? They used to use lenses, but modern telescopes use mirrors. The first telescopes used lenses in the same way that a camera or a magnifying glass does. The first telescope was made by Hans Lipperhey, a German-Dutch spectacle maker. He used lenses to make glasses and he knew that concave […]
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Why doesn’t the Autobahn have a speed limit? The Autobahn didn’t have a speed limit when they were introduced in Germany and it was left without one. Trying to apply a speed limit later on was met with a lot of resistance. Germany is the only country in the world that has roads without speed
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Is modern art still modern? It technically applies to the period that lasted from the 1860s to the 1970s, so modern art is not modern art anymore, if that makes any sense. Postmodern art came after it and right now, we are living in the post-modern contemporary art era. We have an image of modern
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What is a blood diamond? They are diamonds that are mined in a war zone and used to finance the war. They are called “blood diamonds” because of all the blood that is spilled getting them and all the blood that is spilled from the profits of selling them. They are also called conflict diamonds.
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What are pyramids for? Some pyramids are tombs, some are just monuments, and many are for religious or ceremonial purposes. There are a lot of pyramids, such as the ones in Mexico, that people don’t really know the purpose of. People tend to think that the Great Pyramids in Egypt are the only pyramids that
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Why did the Watergate Hotel cause the downfall of Nixon? It didn’t necessarily cause his downfall, but it was the first domino that fell, and it was his coverup of what happened that sealed his fate. Richard Nixon became president in 1968, beating the Democratic candidate Hubert Humphrey, who was the vice president at the
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What happened to Kaiser Wilhelm? He was given asylum in the Netherlands, where he lived until he died in 1941. Wilhelm became Emperor of Germany and King of Prussia in 1888. Germany was not a unified country until after the end of World War 1. What we know now as Germany was a collection of
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How is silk made? It is made from the cocoon of the silkworm. Silk is a natural material that has been around for over 5 thousand years. Silk was first made by the Yangshao culture in China in the 4th millennium BC. One legend has it that an Empress was drinking tea and a silkworm
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What could the 10 plagues in the bible have been? Assuming they actually happened, they could all have rational explanations. However, the evidence shows that they were not a real event. The ten plagues appear in the Book of Exodus in the Old Testament. The story is that the Israelites were enslaved by the Egyptians
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What is a failed state? It is a state that can no longer control its own security and does not have control over its territory, borders, economy, and people. The expression “failed state” hasn’t been used since 2014 because it has the nuance that a state cannot be saved. The correct expression is “Fragile State”.
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