| rdfs:comment
| - Brake is a modifier only available in the Trick Oni course in DDR Extreme, where the arrows slow down dramatically as they reach the top of the screen.
- A Brake section is a special track feature, available on most roller coasters and some other tracked rides, that slows all trains passing over the section down to a preset speed. Brakes are also present in all ride stations (though these can sometimes fail, often resulting in a crash). Brakes used outside the station can be used to reduce ride intensity or to prevent the trains from entering the station at high speeds, thus preventing crashes due to station brake failures. Ride builders must exercise caution when building brakes, as slowing trains down too much may result in the train failing to complete the ride.
- A brake is a device for slowing or stopping the motion of a machine, and to keep it from starting to move.
- A brake is a mechanical device that is designed to slow down or stop a vehicle.
- Most commonly brakes use friction to convert kinetic energy into heat, though other methods of energy conversion may be employed. For example regenerative braking converts much of the energy to electrical energy, which may be stored for later use. Other methods convert kinetic energy into potential energy in such stored forms as pressurized air or pressurized oil. Eddy current brakes use magnetic fields to convert kinetic energy into electric current in the brake disc, fin, or rail, which is converted into heat. Still other braking methods even transform kinetic energy into different forms, for example by transferring the energy to a rotating flywheel.
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| abstract
| - Most commonly brakes use friction to convert kinetic energy into heat, though other methods of energy conversion may be employed. For example regenerative braking converts much of the energy to electrical energy, which may be stored for later use. Other methods convert kinetic energy into potential energy in such stored forms as pressurized air or pressurized oil. Eddy current brakes use magnetic fields to convert kinetic energy into electric current in the brake disc, fin, or rail, which is converted into heat. Still other braking methods even transform kinetic energy into different forms, for example by transferring the energy to a rotating flywheel. Brakes are generally applied to rotating axles or wheels, but may also take other forms such as the surface of a moving fluid (flaps deployed into water or air). Some vehicles use a combination of braking mechanisms, such as drag racing cars with both wheel brakes and a parachute, or airplanes with both wheel brakes and drag flaps raised into the air during landing. Since kinetic energy increases quadratically with velocity (), an object moving at 10 m/s has 100 times as much energy as one of the same mass moving at 1 m/s, and consequently the theoretical braking distance, when braking at the traction limit, is 100 times as long. In practice, fast vehicles usually have significant air drag, and energy lost to air drag rises quickly with speed. Almost all wheeled vehicles have a brake of some sort. Even baggage carts and shopping carts may have them for use on a moving ramp. Most fixed-wing aircraft are fitted with wheel brakes on the undercarriage. Some aircraft also feature air brakes designed to reduce their speed in flight. Notable examples include gliders and some World War II-era aircraft, primarily some fighter aircraft and many dive bombers of the era. These allow the aircraft to maintain a safe speed in a steep descent. The Saab B 17 dive bomber used the deployed undercarriage as an air brake. Friction brakes on automobiles store braking heat in the drum brake or disc brake while braking then conduct it to the air gradually. When traveling downhill some vehicles can use their engines to brake. When the brake pedal of a modern vehicle with hydraulic brakes is pushed, ultimately a piston pushes the brake pad against the brake disc which slows the wheel down. On the brake drum it is similar as the cylinder pushes the brake shoes against the drum which also slows the wheel down.
- Brake is a modifier only available in the Trick Oni course in DDR Extreme, where the arrows slow down dramatically as they reach the top of the screen.
- A Brake section is a special track feature, available on most roller coasters and some other tracked rides, that slows all trains passing over the section down to a preset speed. Brakes are also present in all ride stations (though these can sometimes fail, often resulting in a crash). Brakes used outside the station can be used to reduce ride intensity or to prevent the trains from entering the station at high speeds, thus preventing crashes due to station brake failures. Ride builders must exercise caution when building brakes, as slowing trains down too much may result in the train failing to complete the ride.
- A brake is a device for slowing or stopping the motion of a machine, and to keep it from starting to move.
- A brake is a mechanical device that is designed to slow down or stop a vehicle.
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