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And I could have included this in the quiz portion tonight as well as bananas. They're radioactive. It's one of those fruits. Mind you, there's a number of fruits that are radioactive. Banana is a potassium-40 and a very low amount, so it's going to make some radioactive. And they're sometimes used as a very informal unit of measurement of radioactive safety. And, even not, it's referred to as the banana equivalent dose. And that's probably because they contain a radioactive potassium-40 in very, very low amount. And this makes for a benchmark for some fruit, small doses of radiation. So banana equivalent. And I think we've all had bananas in the past, but the amount of radiation that is of no consequence to people.