Lever a place to stand, and I shall move the Earth with it' is a remark of Archimedes who formally stated the correct mathematical principle of levers (quoted by Pappus of Alexandria). It is assumed that in ancient Egypt, constructors used the lever to move and uplift obelisks weighing more than 100 tons. A lever is a beam connected to ground by a hinge, or pivot, called a fulcrum. The ideal lever does not dissipate or store energy, which means there is no friction in the hinge or bending in the beam. In this case, the power into the lever equals
Colt Ring Lever rifles Lever rifle began production and continued until 1841, with a total of about 500 manufactured (serial numbers 1 through 500). Because only a small number of the Ring Lever rifles were manufactured, they are considered rare finds among all Colt firearms, with the First Model being the rarest firearm produced under the Patent Arms Manufacturing Company. Although neither the First nor Second Model Ring Lever rifles saw widespread adoption by any military organization, several were procured by the United States Army and the Texas Navy. After an unfavorable review by Army officials in September 1837, which reported that Colt's First