Feel the G's

Imagine you had recently read online about an exciting new roller coaster that was almost completed. Now, as you peer over the edge of the new coaster's enormous drop, one thing passes through your mind: This is going to be a wild ride! But what gives you that floating feeling as you speed around the track? Every time the roller coaster cart speeds up, slows down, or changes direction, your body is affected by g-forces. Engineers, automobile manufacturers, and even professional athletes continue to learn more about how g-forces work so they can develop sturdier buildings, safer cars, and better sports equipment. Headline Science uses news stories and everyday applications to explain the science behind gravity and g-forces.