Understand rotational motion in a clear, intuitive way with a lesson designed to stick with you forever. This video breaks ...

Short demo: The fan in a vacuum pushes air out, creating a system of low pressure. This in turn creates a system of low pressure within the bag, allowing for an entertaining demonstration of the power ...

When it comes to engine (and really, overall vehicle) power, the most commonly referenced values are horsepower and torque. Mainly horsepower, which some enthusiasts are always looking for ways to ...

torque is a force. horsepower is the rate at which the engine does work. Really, all the engine's peak torque, and the RPM at which it produces it tells you is the general operating characteristics of ...