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Urban Heat: Recycling waste heat
In the United States, only about one-eighth of the fuel people burn is converted into useful work. Recycling such wasted heat could be one of the best solutions to problems posted by growing cities.
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Book Review: Professor Stewart’s Cabinet of Mathematical Curiosities by Ian Stewart
Review by Elizabeth Quill.
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Life in Space: Astrobiology for Everyone by Lucas John Mix
How the search for extraterrestrial life helps us understand Earth.
