Search results
Results from the WOW.Com Content Network
The hissing of high voltage transmission lines is due to corona discharge, not magnetism. The phenomenon is also called audible magnetic noise, [ 1 ] electromagnetic acoustic noise, lamination vibration [ 2 ] or electromagnetically induced acoustic noise, [ 3 ] or more rarely, electrical noise, [ 4 ] or "coil noise", depending on the application.
Some automakers also said there is no need for electric-drive vehicles to play sounds while not in motion, "since it is not clear that it helps pedestrians to hear cars that are stopped in traffic or parked." In addition, the vehicle manufacturers requested the NHTSA to make the new sound system required by 2018 instead of 2014. [33] [35] [36]
Hot Wheels is an American media franchise and brand of scale model cars invented by Elliot Handler and introduced by his company Mattel on May 18, 1968. [2] It was the primary competitor of Matchbox until Mattel bought Matchbox owner Tyco Toys in 1997.
As a car jumps between sections of track, the player can make the car spin around any axis: barrel rolls, end-over-end, or 360s, in either direction and in combination as well. Successful stunts give the car a speed and traction boost as it lands, which helps improve the player's time, signaled with a vivid graphic of lightning bolt-like ...
Different types of noise are generated by different devices and different processes. Thermal noise is unavoidable at non-zero temperature (see fluctuation-dissipation theorem), while other types depend mostly on device type (such as shot noise, [1] [3] which needs a steep potential barrier) or manufacturing quality and semiconductor defects, such as conductance fluctuations, including 1/f noise.
Citroën combined a freewheel and a centrifugal clutch to make the so-called 'TraffiClutch', which let the driver start, stop, and change the lower gears without using the clutch. This was an option on Citroën 2CVs and its derivatives and, as the name implied, was marketed as a benefit for driving in congested urban areas.
The statement said the "pulsing sound" has stopped. "The crew is asked to contact mission control when they hear sounds originating in the comm system," NASA said.
A drivetrain (also frequently spelled as drive train or sometimes drive-train) or transmission system, is the group of components that deliver mechanical power from the prime mover to the driven components. In automotive engineering, the drivetrain is the components of a motor vehicle that deliver power to the drive wheels. [1]