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A difference engine is an automatic mechanical calculator designed to tabulate polynomial functions. It was designed in the 1820s, and was created by Charles Babbage . The name difference engine is derived from the method of finite differences , a way to interpolate or tabulate functions by using a small set of polynomial co-efficients.
In the Metal Gear book, Snake—described as a "walking arsenal"—uses his guns only to pistol whip enemies. [5] In the Ninja Gaiden book, Ryu Hayabusa's father—seemingly killed in the prologue of the game and said to be dead in earlier book chapters—is revealed as alive by the end of the book.
Gain and Watts Calculator; Mike Sherman's gear calculator Archived 2011-03-10 at the Wayback Machine Online calculator for derailleur gears, with useful graphic displays; HPV Drivetrain Analyzer A drivetrain analyzer and gear calculator for HPV's (Human Powered Vehicles) that will handle compound drives and geared cranks and hubs.
A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
The Moon train starts with gear b1 and proceeds through c1, c2, d1, d2, e2, e5, k1, k2, e6, e1, and b3 to the Moon pointer on the front face. The gears k1 and k2 form an epicyclic gear system; they are an identical pair of gears that do not mesh, but rather, they operate face-to-face, with a short pin on k1 inserted into a slot in k2. The two ...
A torque limiter is an automatic device that protects mechanical equipment, or its work, from damage by mechanical overload. A torque limiter may limit the torque by slipping (as in a friction plate slip- clutch ), or uncouple the load entirely (as in a shear pin ).
Directed-energy weapons (DEW) figure prominently in the Star Wars franchise, with the most common type referred to as lasers or blasters.The in-universe description for how these weapons function is that a high-energy gas is charged by a power cell and converted into plasma, which is fired as a coherent energy bolt at the enemy via magnetic bottle effect.
In contrast to a Ravigneaux, a simple planetary gear train has two concentric gears, one or more planets bridging the gap between those gears, and one arm carrying the planets. [4] Usually, the smaller diameter concentric gear has external teeth and is called a sun gear, and the larger concentric gear has internal teeth and is called a ring gear.