Fast

Difference Between QC2 and QC3
QC 3.0 builds on QC 2.0's voltage variation, but instead of only 3 voltages, it can vary to any voltage between 3V and 20V. It is around 15% faster th...
Difference Between Fast Twitch and Slow Twitch Muscle Fibers
“Twitch” refers to the contraction, or how quickly and often the muscle moves. Slow-twitch muscle fibers are all about endurance or long-lasting energ...