Closing Ceremony for the Sochi 2014 Winter Olympic Games

Credit:  Korea.net / Korean Culture and Information Service (Korean Olympic Committee) CC BY-SA 2.0

The next round of the Winter Olympic Games will occur between February 9th and 29th in PyeongChang, Korea. Th...

November 16, 2015

Light is the fastest thing in our Universe, but we can slow it down. Or it can slow itself down depending on where it travels.

 

This photo of car headlights streaming by was taken in Belfort, France and combines 8 photos, each lasting for 30 seconds. Image Credit: Thoma...

In a perfectly simple world -- that is, a vacuum -- light travels in a straight line.  (A vacuum here refers to space that has no material or pressure.)  Light, however, zooms around in our complicated, imperfect Universe and that’s when things tend to get interesting....

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