V4, where the light reflected from a surface is compared with that reflected from surrounding surfaces, in order to control for relative rather than absolute brightness.

ECONOMIST: The biology of art | The

This handheld device measures the different wavelengths or types of light reflected from a surface.

NPR: Using Science to Rescue Art

Group narcissism takes over, as Generation-i falls in love with its own image reflected on the surface of the cybersphere.

WSJ: David Gelernter: The Pros and Cons of Cyber-English

My 1979 dissertation was a model relating interannual and interseasonal variations in the shape of the atmosphere, as reflected by the surface barometric pressure field, to variations crop yields across the United States.

FORBES: Climategate II: An Open Letter to the Director of the National Center for Atmospheric Research

But with future telescopes, scientists say it may be possible to see past the blinding glare of the parent star to pick out just the faint light passing through a small world's atmosphere or even reflected off its surface.

BBC: Kepler telescope spies 'most Earth-like' worlds to date

It was all reflected in the smooth surface of the water, coloured a coffee-black by tannins released from decaying plant life below.

BBC: Taming the heart of the Peruvian Amazon

If they hit the bottom surface before passing through, they are reflected off and absorbed at the top - and thus are not detected at the other end of the plates.

BBC: Neutrons could test Newton's gravity and string theory

When placed on a flat surface, the stack redirects the waves such that reflected waves are exactly as they would be if the stack were not there at all.

BBC: Acoustic 'cloaking device' shields objects from sound

Solar energy can, of course, be gathered on Earth, but only about half of the sun's radiation ever makes it to the Earth's surface--the rest is either absorbed by the atmosphere or reflected back by clouds.

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