The three main types are: rim brakes, disc brakes, and drum brakes. lever: [noun] a bar used for prying or dislodging something. A computer network is a set of computers sharing resources located on or provided by network nodes.The computers use common communication protocols over digital interconnections to communicate with each other. Lever machines were commonly used in the United States until the 1990s. Most modern passenger vehicles, and light vans, use a vacuum assisted brake system that greatly increases the force applied to the vehicle's brakes by its operator. Most bicycle brake systems consist of three main components: a mechanism for the rider to apply the brakes, such as brake levers or pedals; a mechanism for transmitting that signal, such as Bowden cables, hydraulic hoses, rods, or the The impulse action transfers energy to the clock's timekeeping element (usually a pendulum or balance wheel) to replace the energy lost to friction during its cycle and keep the See more. The grasshopper or 'half-lever' engine was a variant of the side-lever engine. It is also referred to as the moment, moment of force, rotational force or turning effect, depending on the field of study.It represents the capability of a force to produce change in the rotational motion of the body. This is the most basic type of lever. Lever Lever compression latches or over center lever latches have a lever that locks and unlocks the door. This additional force is supplied by the manifold vacuum generated by air flow being obstructed by the throttle on a running engine. A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion. gear lever, gearshift, gearstick, shifter. The muscle tissue of a skeletal muscle is striated having a striped appearance due to the The float is usually shaped like a ball, so the mechanism is often called a ball-valve or a ballcock (cock in this context is an alternative term for valve; see, for example, stopcock). A bicycle brake reduces the speed of a bicycle or prevents it from moving. In 1889, Jacob H. Myers of Rochester, New York, received a patent for a voting machine that was based on Beranek's 1881 push button machine. Trip definition, a journey or voyage: to win a trip to Paris. In 1894, Sylvanus Davis added a straight-party lever and significantly simplified the interlocking A repeating rifle is a single-barreled rifle capable of repeated discharges between each ammunition reloads. A crankshaft is a mechanical component used by in a piston engine to convert the reciprocating motion into rotational motion.The crankshaft is a rotating shaft containing one or more crankpins, that are driven by the pistons via the connecting rods.. The mechanism of pressure natriuresis has been proposed as a physiologic phenomenon where an increase in BP in the renal arteries causes increased salt and water excretion . Using scissors represents the use of two first-class levers. A grenade is an explosive weapon typically thrown by hand (also called hand grenade), but can also refer to a shell (explosive projectile) shot from the muzzle of a rifle (as a rifle grenade) or a grenade launcher.A modern hand grenade generally consists of an explosive charge ("filler"), a detonator mechanism, an internal striker to trigger the detonator, and a safety lever secured by Its order is represented as force-fulcrum-weight. Peripheral devices, however, are not essential for the computer to perform its basic tasks; they are In modern cars the four-wheel braking system is controlled by a pedal to the left of the accelerator pedal. A local anesthetic (LA) is a medication that causes absence of pain sensation. The lever definition explains that it is a simple machine that consists of a bar that rotates around a fulcrum, which is a fixed point. an eccentric wheel) or shaft (e.g. It is often a part of a rotating wheel (e.g. Archimedes of Syracuse (/ r k m i d i z /; Ancient Greek: ; Doric Greek: [ar.ki.m.ds]; c. 287 c. 212 BC) was a Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that may The spool latches are released by a push-in lever within a 6.35 mm (1 4 inch) hole at the bottom of the cassette, 19 mm (3 4 inch) in from the edge label. This is a type of lever which has the fulcrum in between the weight and the force applied. A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion. a cylinder with an irregular shape) that strikes a lever at one or more points on its circular path. In certain designs, when the lever latch is lifted, it raises a second lever behind the door frame. The cassette has an anti-despooling mechanism, consisting of several plastic parts between the spools, near the front of the cassette (white and black in the top view). an inducing or compelling force : tool. The float was originally made from copper sheet, but it is now usually plastic. Example: Our hand pushing an object or seesaws, crowbars. An atomic clock is a clock that measures time by monitoring the resonant frequency of atoms. The side-float design uses a float on the end of a lever to control the fill valve. Key definition, a small metal instrument specially cut to fit into a lock and move its bolt. See more. A whippletree, or whiffletree, is a mechanism to distribute force evenly through linkages.It is also referred to as an equalizer, leader bar, or double tree.It consists of a bar pivoted at or near the centre, with force applied from one direction to the pivot and from the other direction to the tips. It is often a part of a rotating wheel (e.g. This hemodynamic load, Generally, the definition of salt-sensitivity is based on the BP response to moderate reduction and increase of salt intake. Port and starboard are nautical terms for watercraft and aircraft, referring respectively to the left and right sides of the vessel, when aboard and facing the bow (front).. If youve set up a method for dealing with your sister when she annoys you, then you have a mechanism in place for establishing peace with your sister. Stop definition, to cease from, leave off, or discontinue: to stop running. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. Use the word mechanism to describe a process that has been set up to accomplish a particular goal. It is based on atoms having different energy levels.Electron states in an atom are associated with different energy levels, and in transitions between such states they interact with a very specific frequency of electromagnetic radiation.This phenomenon serves as the basis for the International The single-revolution clutch was developed in the 19th century to power machinery such as shears or presses where a single pull of the operating lever or (later) press of a button would trip the mechanism, engaging the clutch between the power source and the machine's crankshaft for exactly one revolution before disengaging the clutch. The grasshopper engine differs from the conventional side-lever in that the location of the lever pivot and connecting rod are more or less reversed, with the pivot located at one end of the lever instead of the centre, while the connecting rod is attached to the lever between the cylinder at one end and In the context of surgery, a local anesthetic creates an absence of pain in a specific location of the body without a loss of consciousness, as opposed to a general anesthetic.When it is used on specific nerve pathways (local anesthetic nerve block), paralysis (loss of muscle power) also can be achieved. This is typically achieved by having multiple cartridges stored in a magazine (within or attached to the gun) and then fed individually into the chamber by a reciprocating bolt, via either a manual or automatic action mechanism, while the act of chambering the round typically Although few details of his life are known, he is regarded as one of the leading scientists in classical antiquity. Skeletal muscles (commonly referred to as muscles) are organs of the vertebrate muscular system and typically are attached by tendons to bones of a skeleton. a cylinder with an irregular shape) that strikes a lever at one or more points on its circular path. A shotgun (also known as a scattergun, or historically as a fowling piece) is a long-barreled firearm designed to shoot a straight-walled cartridge known as a shotshell, which usually discharges numerous small pellet-like spherical sub-projectiles called shot, or sometimes a single solid projectile called a slug.Shotguns are most commonly smoothbore firearms, meaning that their First Class Lever. Password requirements: 6 to 30 characters long; ASCII characters only (characters found on a standard US keyboard); must contain at least 4 different symbols; An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands. an eccentric wheel) or shaft (e.g. In physics and mechanics, torque is the rotational equivalent of linear force. The crankpins are also called rod bearing journals, and they rotate within the "big end" of the connecting rods. Vessels with bilateral symmetry have left and right halves which are mirror images of each other. Piezoelectricity (/ p i z o-, p i t s o-, p a i z o-/, US: / p i e z o-, p i e t s o-/) is the electric charge that accumulates in certain solid materialssuch as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteinsin response to applied mechanical stress. Levers. Alternatively referred to as an auxiliary device, a peripheral is a hardware input device or output device that gives a computer additional functionality. There is usually also a parking brake which operates the rear brakes only (or less commonly, the front brakes only, as in the Saab 99). The hand axe, made by chipping flint to form a wedge, in the hands of a human transforms force and movement of the tool into a transverse splitting forces and movement of the workpiece.The hand axe is the first example of a wedge, the oldest of the six classic simple machines, from which most machines are based.The second oldest simple machine was the inclined plane (ramp), This machine saw its first use in Lockport, New York, in 1892. When the clutch is disengaged and the The muscle cells of skeletal muscles are much longer than in the other types of muscle tissue, and are often known as muscle fibers. Provide American/British pronunciation, kinds of dictionaries, plenty of Thesaurus, preferred dictionary setting option, advanced search function and Wordbook A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires.It has a connection or adapter for use with one or both of the two most common types of valves used on bicycles, Schrader or Presta.A third type of valve called the Dunlop (or Woods) valve exists, but tubes with these valves can be filled using a Presta pump. See more. Glock is a brand of polymer-framed, short recoil-operated, locked-breech semi-automatic pistols designed and produced by Austrian manufacturer Glock Ges.m.b.H.The firearm entered Austrian military and police service by 1982 after it was the top performer in reliability and safety tests.. 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