News tagged with light

Related topics: wavelength · solar cells · laser · physical review letters · photons

10 simple ways to increase your physical activity

Regardless of your shape or size, physical activity has been shown to add years to your life, and life to your years. But believe it or not, the benefits of physical activity are not restricted to exercise performed in the ...

Mar 16, 2016
popularity7 comments 0

Could cutting urban blight reduce teen murders?

Analyzing the immediate neighborhood surroundings of teenaged homicide victims, Philadelphia researchers found that neglected conditions—vacant lots, poor street lighting, fewer parks and less-traveled thoroughfares—were ...

Mar 07, 2016
popularity11 comments 0

Light

Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.

Three primary properties of light are:

Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.

This text uses material from Wikipedia, licensed under CC BY-SA

Subscribe to rss feed