English inventor who developed radial ball bearings for use in carriages. Ball bearings help reduce friction between surfaces by giving a rolling, rather than a sliding, contact surface that is more efficient and prolongs the life of the contact...

The term ball bearing to mechanical engineers usually means a bearing assembly which uses spherical bearing balls as the rolling elements. To laypeople the term often means an individual ball for a bearing assembly. The remainder of this entry uses the...

A video that remained secret for nearly three years after the horrific Beslan hostage crisis has cast new doubt on official conclusions about what led to the deaths of 334 people, more than half of them children, during one of Russia's worst terrorist attacks.The footage...

Six federal police officers involved in President Felipe Calderon's anti-drug operation were being investigated for extortion on Friday after they were videotaped taking money from a driver in the border city of Tijuana, officials said.The men, part of a force of more than 3,300 police...

On paper, the U.S. Army was supposed to be getting "a ball bearing assortment" for $1,409. It was bad enough that the order form marked up the price from $682.50. But there was something about the order that was way out of...

A court Thursday ordered the arrest of two men allegedly involved in what security agents said was a thwarted terror plot planned for Victory Day involving an explosives-laden car, a spokeswoman said.The Lefortovo District Court sanctioned the arrest of Umar Batukayev and Ruslan Musaeva in...