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Why are bubbles round? Do carrots help you see in the dark? One question, 45 seconds, no boring bits.

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Why are bubbles always round? Watch the SciFact Short Myth: Do carrots help you see in the dark? Watch the SciFact Short Why does the Moon change shape? Watch the SciFact Short Myth: Does cracking your knuckles cause arthritis? Watch the SciFact Short How do noise-cancelling headphones work? Watch the SciFact Short Why is the sea salty when rivers aren't? Watch the SciFact Short
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