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...''' is a flexible [[elasticity|elastic]] object used to store mechanical [[energy]]. Springs are usually made out of [[hardened steel]]. Small springs can be *[[Rubber band]] - a tension spring where energy is stored by stretching the material.

...nly when needed, and that the release is controlled in such a way that the energy can be harnessed to produce [[work]]. ...hat go far beyond the energy needs of a [[human body]]. The application of energy released from fuels ranges from [[heat]] to [[cooking]] and from powering [

...omponents to transform chemical, physical or nuclear energy into secondary energy and deliver it to the interface to the outer world for propulsion purposes. ...ally in Europe. If acceleration is adapted automatically to follow minimal energy consumption and minimal environmental pollution, performance may suffer. Th

...car battery''' is a type of [[rechargable battery]] that supplies electric energy to an [[automobile]]. It can be a '''SLI battery''' (''Starting - Lighting ...eries]] that provide a nominal 12-[[volt]] (actually 12.6 volts) [[Voltage|potential difference]] by [[Kirchhoff's circuit laws|serially]] connecting six [[Galv

All such engines have the potential to improve on the piston engine in the areas of: ...to be the seals, and as of 2005 all proposed designs have some of the same potential weaknesses.

...be modeled as an [[energy]] flow, equivalent to the rate of change of the energy in a system, or the time rate of doing work, :''E'' is [[energy]]

'''Roadway noise''' is the collective sound energy emanating from [[motor vehicle]]s. In the USA it contributes more to enviro ...ry warning noise may not alert the pedestrian to nearby danger, creating a potential hazard for visually-impaired people, who rely on such noise to navigate in

The [[energy]] used to propel the vehicle may be obtained from several sources: *from [[chemical energy]] stored on the vehicle in on-board batteries: [[Battery electric vehicle]]

...n a [[crankshaft]] or a [[turbine|turbine disc]] in a [[gas turbine]]. The energy can also be used to produce [[thrust]] when directed out of a [[nozzle]] as ...es displace room for fresh air/fuel mixture and will thus reduce the power potential of each firing stroke.

...nother as a pure Electric Vehicle (EV) powered by electric motors and with energy stored in Lithium batteries. Both prototypes received great attention at tr

...an be better controlled. Hydrogen could also be produced from [[renewable energy]] sources with (in principle) no net carbon dioxide emissions. There are b ...ombustion engine]], but they produce more pollution than would use of that energy in [[plug-in hybrid electric vehicles]]. Hydrogen fuel cells generate less

...ate ions out the back. Here some other source must provide the electrical energy (perhaps a [[solar panel]] or a [[nuclear reactor]]) while the ions provide ...propulsion system, designers often focus on the reaction mass. After all, energy can in principle be produced without much difficulty, but the reaction mass

...front seats of cars, the back seats having only lap belts. Evidence of the potential for lap belts to cause separation of the [[lumbar vertebrae]] and the somet ...ible that the types of injury modelled in the trials were only a subset of potential serious injuries — for example, oblique impacts may produce twisting forc

...ce it can provide high power to weight ratios together with excellent fuel energy-density. These engines have appeared in almost all [[Automobile|car]]s, [[m ...e for most mobile applications. However, the high cost and weight and poor energy density of [[battery (electricity)|batteries]] and lack of affordable onboa

All such engines have the potential to improve on the piston engine in the areas of: ...e the seals, and [[as of 2005]] all proposed designs have some of the same potential weaknesses.

...em]] to the [[combustion chamber]], and that the fuel release sufficient [[energy]] in the form of [[heat]] upon [[combustion]] to make use of the engine pra ...ce it can provide high power to weight ratios together with excellent fuel energy-density. These engines have appeared in almost all [[Automobile|car]]s, [[m

...d by a few great professional athletes as a demonstration of the bicycle's potential, today the focus is on the ordinary or casual rider. However, PBP continues ...His diet included 12 pounds of celery, which he thought to be an important energy source.

...ce it can provide high power to weight ratios together with excellent fuel energy-density. These engines have appeared in almost all [[automobile]]s, [[moto ==Energy==

...racted from the same volume of fuel, as the exhaust has to expend time and energy "catching up" to the rotor before it can accomplish any work. {{citation n ...n]] [[New Beetle]]. In this car, when [[deceleration]] [[sensor]]s sense a potential crash, small explosive cartridges are triggered electrically and the result

Although they were touted in the 1960s and 70s as a potential seat belt replacement, automobile airbags are now designed and sold as supp ...be properly trained on how to safely deactivate airbags or be aware of the potential hazards. Removing the car battery may be a good precaution.

...reached an all-time high in the United States, corresponding to the [[1979 energy crisis|Iranian Oil Crisis.]] However, when gas prices fell again after 1981 ...reached an all-time high in the United States, corresponding to the [[1979 energy crisis|Iranian Oil Crisis.]] However, when gas prices fell again after 1981

...polite little letter sent in October 1904 to a carefully selected list of potential customers, on letterhead Rapid, complete with a drawing of the plant and sm ...ortunate events, AFFECTED during four years by the aspirations of too much energy, distressed, defamed, only supported by the trust of their forces, patient

...uld push more firmly, and further enlarged the front wheel to increase the potential for speed. With tires of solid rubber, his machine became known as ''the or ...ck racing bikes have transmission efficiencies of over 99% (nearly all the energy put in at the pedals ends up at the wheel). While generally variable ratio

...verall season title. During this time, [[WilliamsF1|Williams]] noticed his potential and invited him to test with the team at [[Jerez, Spain]] along with three Montoya showed great potential from the beginning. Critics and fans alike anticipated that he would challe

...e than the 180 to 190 bhp (135 to 140 kW) although their maximum potential power output was higher. In recent times this has begun to change with the ...ler, weighing less. Less reciprocating mass (such as pistons) require less energy to move and this aids to the engine being capable of achieving higher revol

...m Paris to Avignon on a velocipede in only eight days. They recognized the potential profitability of producing and selling the new machine. Together with their ...easing consciousness of the value of exercise and later the advantage of [[energy efficient]] transportation led to the American [[bike boom]] of the 1970s.

...r budgets on [[environmentally friendly]] technology such as the [[Kinetic Energy Recovery System]] (KERS). ...nd quickly a great variety of technical and legal issues. I would advise a potential successor to think very carefully before standing for election." Mosley's c

; '''Solex Agitator''' : Device that enables the utilization of solar energy as a power source on an industrial scale. ...identification imager, capable of compiling a composite facial image of a potential suspect even when the person being photographed is looking to the side. Thi