SCIENCE OF THE WINTER OLYMPICS: SCIENCE OF SKATES

submitted by: nsf

The ice skates worn by this year's hockey players, figure skaters and speed skaters are vastly different from what were once used. Melissa Hines, the Director of the Cornell University Center for Materials Research, and Sam Colbeck, a retired scientist from the U.S. Army Cold Regions Lab, explain how innovations in boot and blade design help skaters perform better than ever before.

SCIENCE OF SPEED: MOMENTUM AND TIME

submitted by: nsf

Increasing the time of a collision from a tenth of a second to two tenths of a second can make a huge difference in the number of G's a driver experiences. The car, the track, seat belts, and seat construction spread out the force of impact and save lives.