Energy & Green Tech

US to open California coast to wind power

The US government is set to open California's Pacific coast to offshore wind farms, officials announced Tuesday, adding to the approval of the nation's biggest wind project to date off Massachusetts.

Telecom

Laser communications: Empowering more data than ever before

Launching this summer, NASA's Laser Communications Relay Demonstration (LCRD) will showcase the dynamic powers of laser communications technologies. With NASA's ever-increasing human and robotic presence in space, missions ...

Automotive

Congestion pricing could shrink car size

Rush hour will likely return when pandemic lockdowns lift, but a new study suggests that congestion pricing—policies that charge tolls for driving during peak hours—could not only cure traffic jams but also convince motorists ...

page 1 from 34

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