The room has a feeling of solidity and permanence, but it also is a celebration of light and airiness.

VOA: special.2010.01.27

Degas and the Impressionists were interested in painting the effects of light, and how the human eye sees subjects.

VOA: special.2009.07.12

He had to make sure the great light on the top of light house would shine during the black storm.

VOA: special.2010.05.08

These thick paints can be spread in layers, one over another, to produce interesting effects of light and color.

VOA: special.2010.07.25

He said he could see the flash of light from Confederate guns along a line a kilometer long.

VOA: special.2009.12.17

He was famous for painting flowers,buildings and the natural environment in a way that explored color and the changing effects of light.

VOA: special.2010.03.24

Super-fast Internet connections let people watch movies and send huge amounts of information at the speed of light.

VOA: special.2010.09.01

The Doppler effect explains changes in the length of light waves or sound waves as they move toward you or away from you.

VOA: special.2009.04.29

It involves the relationship of energy, mass and the speed of light, written as the letter c.

VOA: special.2010.07.16

His specialty was representing the effect of light on an environment with color and loose brushstrokes.

VOA: special.2010.08.04

These huge groups of stars, gas and dust can be many thousands of light years across.

VOA: special.2009.01.20

It is called LaserFest. The American Physical Society, the Optical Society ,and SPIE, a group that supports the study of light, all have been involved.

VOA: special.2010.09.01

Finally,a single ray of light shot from out and fell full upon the vulture eye.

VOA: special.2009.05.16

And then,when my head was well in the room, I undid the lantern just so much that a single thin ray of light fell upon the vulture eye.

VOA: special.2009.05.16