Adam Woodrum was out for a bike ride with his wife and kids on July 19 when his then 9-year-old son, Robert, crashed. “He cut himself pretty bad, and I could tell right away he needed stitches,” said Woodrum. Because they were on bikes, he called the fire department in Carson City, Nevada. “They were
Humans can visually perceive the motion of a small object better than that of a large one. By contrast, according to a study reported in the journal Current Biology on September 5, babies under six months of age are better at seeing the movement of large objects than small objects. In adults, the motion of
As the eye tracks a bird flying past, the muscles that pan the eyeballs to keep the target in focus set their pace not only on the speed they see, but also on a reasonable estimate of the speed they expect from having watched birds before. A team of Duke University neuroscientists has found the
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