Tag Archives: Light

Physics Girl – Can you push a spacecraft with light?

What if you could power a ship using sunlight instead of wind? Well in space, you can! Solar sails or light sails are pushed with light from the sun. Photons provide a kick when they reflect off the sail pushing … Continue reading

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Physics Girl – Why do mirrors flip horizontally (but not vertically)?

Why do mirrors appear to flip images horizontally but not vertically?

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Physics Girl – How Rainbows Form

The physics behind rainbows and surprising facts about rainbows.

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Reflection and mirrors quiz

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Light, waves and colour quiz

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Refraction and lenses quiz

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Reflection & Refraction at Curved Surfaces

This is a really useful applet to show the path that light rays take out of a lens or mirror and how those rays form real or virtual images. It also includes calculations of the position and size of images. … Continue reading

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Vsauce – What Is The Speed of Dark?

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Vsauce – How Much Does a Shadow Weigh?

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The Chart of Electromagnetic Radiations

The Lawrence Livermore labĀ posted this gorgeous old posterĀ of the electromagnetic spectrum onto its Flickr page. It’s an amazing artifact of scientific education from 1944, complete with images of retro radio equipment, hospital radium rays and one of the first commercially … Continue reading

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