biology

  1. A Measure of Wheat

    Scientists Film Hummingbirds in a Wind Tunnel

    With a high speed camera, scientists are able to observe, record and simulate the motions and movements of hummingbirds in a variety of conditions--from normal, hot sunny days, to high wind and rain. And it doesn't matter if it's rainy and windy. Since these birds have such a high metabolism...
  2. A Measure of Wheat

    Brain Scientist Shares Her Story About Having a Massive Stroke

    A neuroanatomist talks about the day she suffered a massive stroke. Her experience provides a rare insight into the workings of the brain, particularly because these recollections of the stroke come from an actual brain scientist--an expert who has spent years studying the brain. It's a...