(mechanical) switch
51Pedometer — A pedometer (also known as a Tomish meter, perhaps after the alleged inventor of a successful device, Thomas Jefferson ) or step counter is a device, in modern times usually portable and electronic or electromechanical, that counts each step a… …
52Commutation cell — The commutation cell is the basic structure in power electronics. It is composed of an electronic switch (today a high power semiconductor, not a mechanical switch) and a diode. It was traditionally referred to as a chopper, but since switching… …
53CoEx — This article is about the coffee machine. For the convention and exhibition center in Seoul, Korea, see COEX Convention Exhibition Center. For the town in France, see Coëx. CoEx is the name of a brewer in a espresso machine, coffee machine or… …
54Pendulum clock — A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. From its invention in 1656 by Christiaan Huygens until the 1930s, the pendulum clock was the world s most accurate timekeeper, accounting for its… …
55Contact breaker — Breaker arm with contact points at the left. The pivot is on the right and the cam follower is in the middle of the breaker arm. A contact breaker (or points ) is a type of electrical switch, and the term typically refers to the switching device… …
56Physical paradox — A physical paradox is an apparent contradiction in physical descriptions of the universe. While many physical paradoxes have accepted resolutions, others defy resolution and may indicate flaws in theory. In physics as in all of science,… …
57контактор (контактный) — контактор (механический) 1 Контактный коммутационный аппарат с единственным положением покоя, с управлением не вручную, способным включать, проводить и отключать токи в нормальных условиях цепи, в том числе при рабочих перегрузках. МЭК 60050(441… …
58Alternator — s are called turbo alternators.HistoryAlternating current generating systems were known in simple forms from the discovery of the magnetic induction of electric current. The early machines were developed by pioneers such as Michael Faraday and… …
59Firearm — A firearm is a tool that projects either single or multiple projectiles at high velocity through a controlled explosion. The firing is achieved by the gases produced through rapid, confined burning of a propellant. This process of rapid burning… …
60Touch-sensitive lamp — A touch sensitive lamp is one that is activated by human touch rather than a flip, pushbutton, or other mechanical switch. These lamps are popular as desk and nightstand lamps. They act on the principle of body capacitance.ee also*Touch… …
