Spin, or the lack thereof, plays a major role in many sports – including tennis, golf, football, baseball, volleyball, and table tennis – because it affects whether flow stays attached around a ball, as well as how much lift or side force a ball gets. A ball’s spin doesn’t stay constant, however. (Image credit: J. Calabrese; research credit: T. Allen et al.) Find all of our Olympics coverage – past and ongoing – here and every sports post here. Read the full article
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Streams of blue and yellow braid across Iceland’s volcanic landscape in this award-winning photo from Miki Spitzer. Glacial water shows an icy blue and sediments glisten in gold. Together, their interplay creates an arresting delta viewed from above. (Image credit: M. Spitzer; via WNPA) Read the full article
FONDLING WIKIPEDIA TO ORGASM
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