News tagged with light

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

The battle for the bedroom

More and more of us are wishing each other goodnight by mobile phone. Unfortunately this means that we are sleeping increasingly badly. Now sleep researchers in Uppsala are creating an app to make us disconnect when it's ...

Apr 28, 2015
popularity15 comments 0

Finding the body clock's molecular reset button

An international team of scientists has discovered what amounts to a molecular reset button for our internal body clock. Their findings reveal a potential target to treat a range of disorders, from sleep disturbances to other ...

Apr 27, 2015
popularity5959 comments 0

Light therapy hope for sleep troubled teens

Flinders University sleep researchers are taking research conducted in Adelaide schools to the next level by intensively studying individual sleep troubled teens in a new study at the Child & Adolescent Sleep Clinic at the ...

Apr 27, 2015
popularity15 comments 0

A dark night is good for your health

Today most people do not get enough sleep. The Centers for Disease Control and Prevention (CDC) has called insufficient sleep an epidemic. While we are finally paying attention to the importance of sleep, the need for dark ...

Apr 06, 2015
popularity23 comments 0


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

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