Description: A pinhole camera operates on the same principle as the human eye (and a bunch of other eyes, too!) How does a pinhole camera work? How do your eyes see? The answers for both questions are very similar.
Continue reading ‘How to make a pinhole camera. Learn how your eyes work.’ »
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If you’ve ever wanted to make your own rainbow, it’s not difficult with a little experimentation.
Continue reading ‘How to make your own rainbow, and meet “Roy G. Biv”’ »
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Refraction happens when when light is bent as it moves. Instead of going in a straight line, it appears to turn, curve or bend.
Continue reading ‘Introduction to refraction’ »
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You’ve probably seen this happen at a restaurant. You’re sipping your drink through a straw. You glance at your glass at just the right angle, and the straw looks “broken”. Let’s take a closer look at what’s happening.
Continue reading ‘See refraction in a glass of water’ »