Dr. Filipek answers the question: 'Examples Of Repetitive Motion/Behaviors?' Oct. 23, 2008 -- Question: What are some examples of repetitive motion/behaviors characteristic of someone with autism?

I see this problem all the time. The idea that if you apply a constant force on an object, it should move at a constant speed. Really, this is what Aristotle would say, right? There are two course ...

Your everyday notion of forces probably includes pushing and pulling and similar actions. Technically, when something is pushed or pulled we say that "a force is applied to the object". What happens ...

Our motion perception is remarkably well tuned to detect small changes in speed and direction. For example, soccer goalkeepers need to precisely judge the speed, direction, and curvature of an ...

Editor's Note: Oakland A's rookie Huston Street will be writing a regular diary for ESPN.com throughout the 2005 season. The 21-year-old former University of Texas standout was recently named the A's ...

Isaac Newton's First Law of Motion states, "A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force." What, then, happens to a body ...

An array of GPS instruments near the San Andreas Fault system in Southern California detects constant motion of Earth’s crust—sometimes large, sudden motion during an earthquake and often subtle, ...