What If?: Serious Scientific Answers to Absurd Hypothetical Questions
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trying to thoroughly answer a stupid question can take you to some pretty interesting places.
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A world of random soul mates would be a lonely one.
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Temperature is a measure of the average kinetic energy of a collection of particles.
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the word asteroid means “starlike.”
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cancer cells are dividing all the time, whereas most normal cells divide only occasionally.
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The most rapidly dividing cells are found in the bone marrow, the factory that produces blood.
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Our hair follicles and stomach lining also divide constantly, which is why chemotherapy can cause hair loss and nausea.
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On worlds without plants, oxygen doesn’t stay in the atmosphere—it combines with other elements to form things like carbon dioxide and rust. Plants undo this by stripping the oxygen back out and pumping it into the air.
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I’ve never seen the Icarus story as a lesson about the limitations of humans. I see it as a lesson about the limitations of wax as an adhesive.
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However big you think supernovae are, they’re bigger than that.
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While 140 characters may not seem like a lot, we will never run out of things to say.