Roller Coasters

The heart-pumping exhilaration keeps us coming back time and time again, but it’s the laws of the physics and a great deal of math that keep these thrill rides soaring through the air day after day.

Saving the Bald Eagle

Our national bird is back in the lower 48 states after nearly disappearing in the 60's and 70's. Robert Mesta, a biologist with the U.S. Fish and Wildlife, explains what it takes to recover a species like the bald eagle, and demonstrates his use of math.