A lever is a rigid bar or rod that can pivot about a fixed position. This fixed position is called a fulcrum. Examples of levers include a seesaw, a crowbar, and a bottle opener. A lever is a type of simple machine. Simple machines are the basic...

From prehistoric times levers were used for cultivation, excavation, and moving large objects. Such implements as hoes, slings, and oars were conceived and constructed to enhance human effort. The key to their operation is the relative positions of the...

In physics, a lever (from French lever, "to raise", c.f. a levant) is a rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object. This is also termed mechanical...

In my remarks to the 2006 Annual General Meeting in June, I described the past year as a tough year but a good year for the Canadian Library Association. It was a tough year because CLA took on new projects and initiatives despite inadequate...

Two events, the new United Nations resolution on the Iran-Iraq war and the American reflagging operation, are combining unexpectedly to produce a glimmer of respite in the Persian Gulf. The resolution had been widely seen as a lever to press Iran, which, in...

Thirty-five Bosnian war refugees have filed a lawsuit claiming the U.S. government is unlawfully delaying their applications to become United States citizens.The Bosnians, who came to the U.S. legally to escape persecution in the former Yugoslavia, have disabilities that range from post-traumatic stress disorder related...

It used to be that enthusiasts eschewed two-pedal driving, and for good reason. The traditional torque-converter/3-speed planetary/PRNDL was for Mom and Dad. We wanted to stir gears, by artfully wielded hand and clutch foot. How times change. Today, some of the world’s most desirable cars...