rotor" is the big spinning fan thingy on a helicopter). If helicopters had only one rotor on top, once they started flying they would also start spinning like crazy, because of the twisting force from the main rotor. This twisting force is called "torque."...

picking your HDD, most specifically RPM. The RPM of an HDD is how fast its platter spins, generally offered in 4,500 RPM, 5,400 RPM, and 7,200 RPM for laptops. As you can probably guess, the faster it spins, the better the performance, but also keep in mind...

letting the wheel turn on its own, as the back wheels of the car spin and the front wheels will turn in the opposite direction, spinning the steering wheel around completely. It’s up to the driver to catch the wheel at the proper time. This worked on smaller...

relief by throttling the graphics processor clock rate back in the driver to its minimal value, but that turns the noise down only to 44.2 dB(A). And of course, you won't want to play any games with this setting in effect. In the DVD scenario, the fast spinning...

load is removed, the fans in the Acer, Asus and Alienware units spin down after about 30 seconds to run at their minimal rotation speeds (as in idle mode). The HP Compaq nx9420 spins down in just a few seconds for a marked sonic contrast. When both the CPU...

it allows the hard drive to spin up and upload the music to fill the buffer, and then spin down. Secondly, it conserves battery life by not having to power the hard drive to keep it spinning all the time. With that being said, it is important to realize that...