Bananas emit antimatter almost every 75 minutes

Potassium-40 is a fairly unstable isotope, although the half life is nearly a billion years.

Because bananas have so much of this isotope, there is enough decay to generate one positron (approximately) every 75 minutes.

A positron is basically the opposite of an electron. It has the same mass as an electron, but a positive charge instead of a negative one. It is the electron’s antimatter doppelgänger.

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