The goal of drive-system engineers is usually pretty straightforward. Specify the smallest motor and drive needed to accelerate and run a load at a required rate, and determine the braking forces ...

From Newton's Laws of Motion to electric forces, these concepts explain why matter behaves the way it does.artpartner-images/The Image Bank/Getty Images Physics is the science that quantifies reality.

You don’t need to pay hundreds of thousands of dollars or sit through hours of classes in order to understand the fundamental nature of the universe. In truth, the fabric of the cosmos is just a mouse ...

This course examines energy as a fundamental concept in physics and an essential element of human society. Basic principles of energy conservation and transformation are developed to understand ...

The past few decades have witnessed significant progress in our understanding of the physics and complexity of earthquakes. This has implications for hazard mitigation. Simply stated, an earthquake is ...