Energy & Green Tech

Perovskite and organic solar cells rocketed into space

For the first time, researchers in Germany sent perovskite and organic solar cells on a rocket into space. The solar cells withstood the extreme conditions in space, producing power from direct sunlight and reflective light ...


Investigating 3-D-printed structures in real time

A team of scientists working at the National Synchrotron Light Source II (NSLS-II) at the U.S. Department of Energy's (DOE's) Brookhaven National Laboratory has designed an apparatus that can take simultaneous temperature ...

Energy & Green Tech

Oxygen breathes new life into solar cell research

Scientists in Australia and the United States have been able to 'upconvert' low energy light into high energy light, which can be captured by solar cells, in a new way, with oxygen the surprise secret ingredient. The results ...

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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.

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