How do birds balance on a phone line? Birds can balance on a phone line because of the way their feet and legs work, their size, their vestibular system, and their balance organs. Birds can perch on pretty much anything without any trouble. In fact, they can also sleep perched on things like power lines […]
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How does anthrax kill? An infection of the anthrax bacteria can kill because the bacteria produce toxins that can kill an animal or a person. Anthrax is the name for the infection caused by a bacteria called Bacillus anthracis. It is a rod-shaped bacterium that is about 3 to 5 micrometers long. The average human
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What is antitrust? Antitrust is a set of laws that are supposed to promote fair competition and prevent monopolies. You have probably heard the word “antitrust” a lot since the birth of the giant tech industries. It is always being used to refer to Microsoft, Google, and Facebook (sorry – Meta). But, what actually is
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Why were the Easter Island Moai statues built? The Moai statues were built on Easter Island by the Polynesians to embody the spirits of their ancestors, not to appease the gods as their island died. There are 887 known statues on the island at the moment, but there are more that are still buried and
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What is a black box made of? There is no one single material, but they have to be able to survive any of the conditions that a crashing aircraft might encounter. We call them black boxes, but they aren’t actually black. In fact, a literally black black box would be very hard to find. They
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Why do stars ignite? Stars ignite when a cloud of gas and dust forms a big enough mass where the gravity creates enough pressure for nuclear fusion to start. Stars form out of masses of gas and dust that are floating around in the universe. These gases and dust slowly bump into each other and
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Were dinosaurs warm-blooded or cold-blooded? The majority of dinosaurs were most likely warm-blooded. “Dinosaur” comes form the Greek “deinos”, which means terrible, and “sauros”, which means lizards. They are terrible lizards, which would lead many people to think that they were cold-blooded, as most lizards are today. Lizards have evolved to be cold-blooded because it
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What causes rogue waves? There are many reasons why rogue waves can form but three of the most common theories are modulational instability, constructive interference, and another current. Tsunamis can be thought to be rogue waves, but they aren’t. They have a much longer wavelength. The majority of the waves in the sea are caused
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What is Maxwell’s Demon thought experiment? Maxwell’s Demon’s thought experiment is a theoretical way that the Second Law of Thermodynamics could be challenged. The Second Law of Thermodynamics is the law that explains entropy. It says that any system always heads from order towards disorder and the only way to get it back to order
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What is the problem with invasive species? The problem with invasive species is that the ecosystem they are invading has not evolved to deal with them, and they can cause widespread damage. Plants and animals have always managed to spread outside of their own ecosystem, but they are always controlled by the conditions or by
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