And a major cause of traffic accidents are drivers making errors in judgement. It used to be that all telescopes looked like big tubes with lenses in them. Then came radio telescopes that looked like big dishes and look at radio waves instead of light. Now we'll tell you about an even stranger sort of telescope, being built under the sea. Although many of us prefer to sleep while we work, our brains like to work while we sleep.
Scientists now find out all the sorts of things that our brains do after the lights go out.
There's no cure for the common cold, but most grandmothers will swear chicken soup will at least make you feel better. Science reporter Bob Hirshon investigates whether there's any truth to the legend. In most parts of the country, winter has plenty of storms, but they usually involve snow, not thunder and lightning. A listener noticed this, and called to ask what it takes to make a winter thunderstorm happen. On cool days, you'll often see joggers outside wearing jackets over their T-shirts, but with bare legs.