You're sitting in physics class, working on a traditional problem involving forces and acceleration, when you start to wonder where these terms even came from. Were they just dreamed up to bring ...

Speaker one We’ve been using Sir Isaac Newton’s theories for hundreds of years and still use his equations today. Now, how can we test Newton’s second law using equipment found in our laboratory?

We are talking about Centrifugal and Centripetal forces using a tornado as an example. Centripetal force is a force that keeps an object moving in a circular path, this force points TOWARDthe center ...

Source: NOVA: "Galileo's Battle for the Heavens" This resource can be found on the NOVA: "Galileo's Battle for the Heavens" Web site. The motion of objects fascinated Galileo throughout his life. When ...

I have a problem. I admit it. Isn't admitting you have a problem the first step to recovery? My problem is Angry Birds Space. I just can't stop trying to figure out how this stuff works. Oh, I am not ...

Monisha Ravisetti was a science writer at CNET. She covered climate change, space rockets, mathematical puzzles, dinosaur bones, black holes, supernovas, and sometimes, the drama of philosophical ...