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Mike Sowden's avatar

I loved this. Thank you. :)

A wonderful thing about iridescence - it's a way to colour things that aren't actually coloured at all. For example, there's a type of butterfly that *looks* a luminous bright blue - but it's just the way the light is interacting with its surface, and in reality it's a dull brown colour: https://www.nationalgeographic.com/culture/article/the-butterfly-effect-how-blue-morpho-wings-could-stop-counterfeiting This trick (structural colour) is leading to all sorts of weird new experiments - and might also help with keeping buildings cool, by changing their external colour in realtime in reaction to sunlight. VERY TRIPPY INDEED.

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JQ Rose's avatar

Love referring to a person as incandescent. Brilliant!

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