Know it all. 132 Head-Scratching Questions About the Science All Around Us

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A joy for science lovers, Know It All is your ticket to a grand meeting of curious minds! New Scientist magazine’s beloved “Last Word” column is a rare forum for “un-Google-able” queries: Readers write in, and readers respond! Know It All collects 132 of the column’s very best Q&As. The often-wacky questions cover physics, chemistry, zoology and beyond: When will Mount Everest cease to be the tallest mountain on the planet?If a thermometer was in space, what would it read?Why do some oranges have seeds, and some not?Many people suffer some kind of back pain. Is it because humans haven’t yet perfected the art of walking upright? And the unpredictable answers showcase the brainpower of New Scientist’s readers, like the anatomist who chimes in about back pain (“Evolution is not in the business of perfecting anything.”) and the vet who responds, “Quadrupeds can get backache too!”