LIGHT absolutely does NOT exist.

submitted by: EinsteinGravitydotcom

Light is only the electromagnetic waves of HEAT that hit our retinas and what only our BRAINS then define as Light.

CHALK TALK: INFRARED

submitted by: nsf

Infrared can be divided into three separate categories – near, mid, and far, and even though we can’t see it, in some cases we can detect it. Many things, including people and planets, emit infrared. We also use it to transmit information via remote controls and video game consoles.

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 THE WINTER OLYMPICS: SCIENCE FRICTION

submitted by: nsf

Curling has been in the Winter Olympics for four years now, but it still seems a little strange to most of us. John Shuster, the captain--or "skip"--of the U.S. Curling Team in Vancouver, explains this unusual sport, and NSF-funded scientists Sam Colbeck, a retired scientist from the U.S. Army Cold Regions Lab and physicist George Tuthill of Plymouth State University explain the friction that makes it all work.

SCIENCE OF SPEED: FIRESUITS

submitted by: nsf

"Frightening" is how Jeff Gordon describes fire, even though he knows he's protected head to toe (and right down to his underwear) by fire-resistant Nomex fabric. Firesuits and the associated gear don't just protect drivers from fire, though--they decrease the rate of heat transfer, giving the driver a little more time to move somewhere cooler.

La Transpiración "Leyendo entre los Genes"

submitted by: MarkShriver

La transpiración como termoregulación en el humano.

Sweating "Reading Between the Genes"

submitted by: clownfish

Short educational video about sweating as a heat resistance mechanism how evolution has played a role.

Amazing Earth 2

submitted by: scivee-team

A documentary about volcanic eruptions, their causes and effects on Earth and the geological implications of those events in history and in the future - Part 2.

Earth's Destiny

submitted by: scivee-team

A possible outlook for Planet Earth in a few billion years.What will happen to Planet Earth in a few billion years?