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Bob Berman's Strange Universe: Our bodies, our neutrinos

August 2010: These strange particles pervade our universe but are difficult to detect.
Bob Berman
The most abundant particle in the universe? It's the neutrino. They're everywhere, like roaches in Rio. Each second, about one trillion neutrinos whiz through your tongue. Don't taste a thing? That's because they rarely meddle with our bodies.

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