News tagged with light

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

Switching off anxiety with light

Receptors for the messenger molecule serotonin can be modified in such a way that they can be activated by light. Together with colleagues, neuroscientists from the Ruhr-Universität Bochum (RUB) report on ...

Apr 07, 2014
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Young motorists lack self control

So now we have it in black and white – the emotional centre in young men's brains overrides the area controlling their ability to make rational decisions. This leads to accidents among risk-seeking motorists.

Apr 07, 2014
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Online survey reveals new epidemic of sleeplessness

New online research, conducted to coincide with the publication of Professor Richard Wiseman's latest book Night School, suggests that nearly six in ten (59%) of adults in Britain - over 28 million people ...

Apr 04, 2014
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Switching brain cells with less light

Networked nerve cells are the control center of organisms. In a nematode, 300 nerve cells are sufficient to initiate complex behavior. To understand the properties of the networks, re-searchers switch cells ...

Apr 01, 2014
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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.

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