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...