Fascinating Facts About Science and Nature

Your brain uses about 20% of your body’s energy, even when you’re resting.

Thinking is literally expensive. There are more possible games of chess than atoms in the observable

universe (Shannon number). That’s why computers “calculate,” not memorize.

You don’t feel the Earth spinning because it rotates at a constant speed. We only feel acceleration,

not steady motion. Bananas are slightly radioactive due to potassium-40. It’s harmless,

but measurable. Your body glows very faintly because of chemical reactions inside cells that

emit tiny amounts of light (bioluminescence at a microscopic level). Octopuses have three

hearts and blue blood because it uses copper-based hemocyanin instead of iron-based hemoglobin.