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The colour of the sky, whether during the day or at night, was an area of extreme confusion for me in my youth… For most youngsters “why is the sky blue?” is one of the first questions they ask as their little brains get inquisitive; unfortunately, the response is typically ridiculous and they’re still to young to know that grandma is nuts and they should probably verify her sources.

What I’m getting at is that I could have really used a video like this as a kid. It’s super simple and informative and a great use of Crayola Markers… I even liked how the creators summed up redshift and the Doppler Effect, concepts that took me a long time to truly understand on my own.

The video comes to us from the Minute Physics YouTube channel which is the place to go for accessible stick-people science at its best:

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