Go to any paint store or nail-polish shelf and you’ll see a dozen or so variations of the color black. Even inside a crayon box, there are a lot of shades. But what is the blackest black out there? (3:22 min.)

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In this winning entry for the 2014 Flame Challenge Physics Girl explains the mystery of color. How we see colour is very complicated and involves wavelength, reflection, signals and perception (3:50 min.)

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Have you ever wondered why water is clear in a glass but blue in our lakes and swimming pools? It's all about the spectrum of light! We break it down. (2:50 min.)

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What scientific thinkers and achievements have led to vast improvements in optics over the centuries? Discover the fascinating ways that our understanding of light informs the world in which we live. (4:16 min.)

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Your eyes don’t always capture the world exactly as a video camera would. But the eyes are remarkably efficient organs, the result of hundreds of millions of years of coevolution with our brains. Michael Mauser outlines the similarities and differences between your eye and a video camera. (4:56 miln.)

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New research shows chameleons actively tune nano-crystals to change their color.

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The internet has been debating the colour of this dress. Find out the answer using science in this video from AsapSCIENCE. Learn more about the science behind what colors we see at https://en.wikipedia.org/wiki/The_dress

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This video from MinutePhysics explains the physics behind why the sun is yellow and the sky is blue.

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The average, healthy human can distinguish between well over a million different shades.

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The iodine clock reaction is very well known, but it is worth taking a second look at the science behind it to appreciate its elegance.

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You may have seen the old hydrogen-balloon-explosion experiment before, but it turns out there is more to it then meets the eye.

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Bluescreen technology is a major component of most modern special effects. The technique results in composite pictures or pictures made of separate images that are put together to generate one image. The composite images are what we see on the screen.

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