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From the Publisher
Why? Answers to Everyday Scientific Questions
gets to grips with concepts that appear simple and straightforward,
but which most people, when asked, really can''t explain.
Why is the sky blue? Why is water wet? Why do we need
sleep? Why are there 24 hours in a day? For each question, author
Joel Levy provides a simple, single line answer followed by more
in-depth information about the scientific background on these
essential topics. The book spans physics, biology, chemistry,
geology, geography, meteorology, paleontology and planetary science
- allowing readers to wow friends and family alike with pithy
answers to the obvious questions they never thought to ask.