All of us have wondered "What if?" about one topic or another at some point in our lives. Randall Munroe of xkcd comics has a new book that answers many of the questions submitted to him, including what would happen if you threw a baseball at 90% of the speed of light. The book is entertaining (my husband and I listened to the first half on our drive to see Neil deGrasse Tyson), and the is worth a listen. Science Friday interview
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Mrs. SpragueArchives
March 2015
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