TeachEngineering
Teach Engineering: Navigating at the Speed of Satellites
For thousands of years, navigators have looked to the sky for direction. Today, celestial navigation has simply switched from using natural objects to human-created satellites. A constellation of satellites, called the Global Positioning...
Science Struck
Science Struck: Kinetic Energy Formula
Explains what is meant by kinetic energy and demonstrates how to use the formulas for a point mass moving at less than the speed of light, for rotational motion, and for a mass moving at a relativistic speed. Includes interactive...