Physics

Physics decides what is possible, from a radioactive banana to a sleigh that visits every home in one night. We run the actual numbers, state our assumptions, and show where the math stops and the speculation starts.

Physics

Are Bananas Radioactive?

Yes, slightly. Learn what potassium-40 is, where the 0.1 microsievert banana dose comes from, and why it is an imperfect yardstick for everyday radiation.

6 min read

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