Posts tagged ‘antimatter’
Bananas Emit Antimatter Almost Every 75 Minutes
By Chad Upton
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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photo: keepon (cc)
sources: tertiarysource.net, wikipedia (positron, gamma ray)
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