The escalator is a continuous moving staircase that carries people from one level or floor to another. A series of steps are pulled by chains along two sets of tracks, powered by an electric motor. The first United States patent for an escalator was...

An escalator is a conveyor transport device for transporting people, consisting of individual, linked steps that move up or down on tracks, which keep the treads horizontal. As a power-driven, continuous moving stairway designed to transport passengers...

LAST WEEK A spokesman for Al Gore said that as this postelection controversy unfolded we were seeing what kind of president Mr. Gore would be. We have a sinking feeling that he was right, and that the same is true with regard to Mr....

Since I became general manager of the Washington Metropolitan Area Transit Authority two years ago, the upkeep and safety of Metro escalators have become important issues both for the authority and the public. During the past two years, the level of financial resources dedicated...

Young Russians staged raucous protests in Moscow on Wednesday to denounce neighboring Estonia for removing a Soviet war memorial from its capital, and the Estonian ambassador said pro-Kremlin activists tried to attack her as she arrived at a news conference.Sweden said its ambassador also was...

Muslim insurgents in southern Thailand have intensified their deadly attacks and imposed greater control over the local populace despite offers of peace and reconciliation by the country's military-backed government.Reversing the previous iron-fisted policy, which included death squad killings, the new regime has apologized for past...