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What makes thunder and lightning? – Weather science

By |2018-04-24T15:20:20+00:00August 20th, 2017|Physics|

A bolt of lightning in the sky Hot air and cold air are constantly moving around the Earth, as the hot air rises and the cold air sinks - that's what makes wind. Sometimes as this airmoves around, it gets more exciting than just wind, though. A thunderstorm begins when the wind picks up a lot of water from the [...]

What is light made of? Why is the sky blue?

By |2018-05-31T11:49:14+00:00August 16th, 2017|Physics|

Rainbow over Amazon river Light is made of billions of tiny particles called photons. These photons travel from one place to another in waves. Visible light is the subset of photons that move at a wavelength that we can see. Among the different photons that are in visible light, the ones that have the [...]

du Chatelet light project – European science

By |2018-04-08T11:14:26+00:00August 6th, 2017|Modern Europe, Science|

Any desk lamp will do You can get colored lights and thermometers and do the experiment that du Chatelet never carried out. See for yourself whether red light will heat things up more than blue light! Get a regular weather thermometer, and set it up under a strong desk lamp so the light shines [...]