The sonic boom problem – Katerina Kaouri

The sonic boom problem – Katerina Kaouri

Objects that fly faster than the speed of sound (like really fast planes) create a shock wave accompanied by a thunder-like noise: the sonic boom. These epic sounds can cause distress to people and animals and even damage nearby buildings. Katerina Kaouri details how...
How much does a falling magnet weigh?

How much does a falling magnet weigh?

Armed with a large neodymium magnet, an aluminium tube and a set of scales, Andy explores the interaction of forces generated as the magnet falls and the effect these forces have on the objects’ weight. Explore more Tales from the Prep Room and let us know in...
Are Physical Laws Invented or Discovered?

Are Physical Laws Invented or Discovered?

After much work poring over previous research and working out new formulations, a physicist writes an equation she thinks best describes the behavior of tiny particles—or colliding supernovas. Are such equations inventions or discoveries? It’s an interesting...
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