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What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions, by Randall Munroe

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The oxygen masks on commercial airliners are often connected to lumps of potassium chlorate. When the mask drops, a pin is pulled out, and a chemical reaction heats the potassium chlorate to produce oxygen.
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What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions
What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions
by Randall Munroe
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