Why Do Onions Make You Cry?
Cutting an onion breaks its cells, setting off a chemical chain reaction that releases a gas which irritates your eyes. The science, and the…
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Weird and wonderful science explained.
Why Is the Sky Blue (and Sunsets Red)? Explained in Two Minutes
Why Is the Sky Blue (and Sunsets Red)? Explained in Two Minutes
The sky is blue because air scatters short (blue) wavelengths of sunlight much more than long (red) ones — Rayleigh scattering. Why it is…
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