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, ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

The fastball is, as its name implies, the fastest pitch in major league baseball, reaching speeds in excess of 100 MPH, and ideally arriving at the strike zone before the batter can react. Sometimes ...