Why aren’t there flying boats anymore? Because landing and takeoff is rough, they are not very stable, engines became more powerful, more runways on land were built, and the sea is very corrosive. Before we start, let’s have a quick look at what a flying boat actually is. You are probably thinking of one of […]
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Why do British people say football and Americans say soccer? Britain used to call football soccer until about 1980 when they started to call it football. Before we start, this article is about the sport of two teams of eleven people trying to kick a ball into each other’s goal. Not the sport that is
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How thick is tank armor? It depends on the tank, the type of armor, and the location on the tank, but armor is roughly between 10 cm at its thinnest and over a meter at its thickest. The tank with the best armor is said to be the Challenger 2. However, for obvious reasons, the
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Why do some countries drive on the left? Because of the way carts were built and then not wanting to change. There are 56 countries that drive on the left-hand side of the road, which is approximately 30%. With the exception of Japan and a few other countries, they are predominantly countries that used to
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What is the Streisand Effect? It is when you try to hide something but end up bringing more attention to it than if you had just left it alone in the first place. The Streisand Effect is named after the American singer and actress Barbra Streisand. The effect has been around for as long as
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How does ceramic armor work? It shatters the projectile, absorbing and spreading out the kinetic energy from the projectile over a wider area. The first thing to clear up is that ceramic armor plates are made of a different type of ceramics than the mugs and cups in your kitchen. There are many different types
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Why do tattoos stay in the skin forever? Because the particles of ink are too big for the body to absorb and expel. When you have a tattoo, the tattooist uses a needle to put ink particles into your skin. Skin has three layers, and the ink is injected into the middle layer, the dermis.
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How does insulation in the home work? By slowing down the movement of heat energy out of the house or into the house. The idea of insulation is to stop your house getting cold in the winter or hot in the summer. If you live somewhere that is cold in winter, you have to use
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Who invented the slide rule? Willian Oughtred in 1622. I think, first, I need to look at what a slide rule is because not many people under 60 will have ever used one. These days, if we want to do complex calculations, we can just plug them in to our phone and get the answer
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What are moles, freckles, and birthmarks? Moles are caused when pigment-producing cells grow in a group. Freckles are caused when your skin cells produce too much melanin. Birthmarks are caused when blood vessels don’t form correctly or when the cells that produce pigment grow too much. Almost everybody has moles. By moles, I obviously don’t
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