Speed alone may be the factor that draws many sports fans to the bobsled, luge and skeleton events at this year’s Beijing Winter Olympics. But beneath the thrilling descents of the winding, ...

The speed of light, c, is not just a very large number. In modern physics it is a structural constant: the conversion factor ...

Speed alone may be the factor that draws many sports fans to the bobsled, luge and skeleton events at this year’s Beijing Winter Olympics. But beneath the thrilling descents of the winding, ...

When supermassive black holes barrel toward collision, they can reach speeds of up to 1/10th the speed of light, new research suggests. When you purchase through links on our site, we may earn an ...

We solve for centripetal acceleration, centripetal force, and tangential velocity. In this Closer Look segment on circular motion, we investigate circular motion and solve for centripetal acceleration ...

For Columbia University Physicist Gerald Feinberg, the monthly magazine Fantasy and Science Fiction is as compelling as any learned scientific journal. It has printed a continuing debate be tween ...