Tag Archives: Light

Light, waves and colour quiz

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Refraction and lenses quiz

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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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A Real Image – Exploratorium

A tour guide demonstrates a giant concave mirror that creates a perfect image.

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If superpowers were real…….

What if invisibility wasn’t just the stuff of epic comic book stories? Is it scientifically possible to be invisible? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere mortals. … Continue reading

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Light waves: Polarisation & Colour podcast

What is light?, The electromagnetic spectrum, Waves, Wave equations, Light as electromagnetic radiation, Polarisation, Colour, Colour addition, Colour subtraction, Interference & structural colour Download the notes. Download the video.

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Optics & vision podcast

The human eye, Near point, Lens power, Short sightedness (Myopia), Long sightedness (Hypermetropia), Using lenses Download the notes. Download the video.

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PhET – Bending of light simulation

Explore bending of light between two media with different indices of refraction. See how changing from air to water to glass changes the bending angle. Play with prisms of different shapes and make rainbows. Click to Run An essential for … Continue reading

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