How does a hologram work? There are two types of holograms: the version that has a 3D image on a flat sticker, or plate, and the 3D kind that appears in the air out of nowhere. Surface holograms work by splitting light, and 3D ones work through several methods. A flat hologram is an attempt […]
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How do oxygen masks on a plane work? Oxygen masks on a plane work by initiating a chemical reaction that produces a relatively small supply of oxygen. Hopefully, you will never have to experience the oxygen masks dropping down while you are on a plane. Flying on a plane is still statistically the safest way
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Why does a paper cut hurt so much? Paper cuts hurt so much because of the roughness of the paper, the places we are most likely to cut, and the size of the cut. The first reason that paper cuts hurt so much is because of the paper itself. Paper is made from a dried
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What causes liver spots? Despite their name, liver spots are caused by prolonged exposure to Ultra ultraviolet light and don’t have anything to do with the liver. As people age, they get more wrinkles, their muscles don’t work quite as well, and they get dark brown blemishes on their skin. These spots are called liver
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What is the glass beach in Vladivostok? It is a beach near the town of Vladivostok in Russia, which is covered in millions of rounded glass and ceramic pieces. The beach is called Steklyashka beach, and it is located 15 km northeast of Vladivostok, which is on the east coast of Russia. It is on
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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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