Trees: The critical infrastructure low-income neighborhoods lack

As the Pacific Northwest sweltered through a record-breaking heat wave last week, many residents here in America's least air-conditioned city sought relief under the shade of cedars and maples in city parks. But in some areas ...

Cellulose: An ever-present material with remarkable properties

Physicists from the University of Luxembourg have recently made significant steps forward in resolving some of the outstanding research questions about cellulose. Their findings have been published in the prestigious journals ...

How dashcams help and hinder forensics

Dashcams are vital for helping police investigate car incidents, however the way the footage is submitted to police, managed and processed can cause problems. A researcher at WMG, University of Warwick has assessed seven ...

Tornadoes tear though Tennessee, 25 dead

Tornadoes ripped through Tennessee early Tuesday, leaving at least 25 people dead, destroying buildings and toppling power lines hours before the southern US state voted in Super Tuesday primaries.

Aerial photographs shed light on Mont Blanc ice loss

In 1919, the Swiss pilot and photographer Walter Mittelholzer flew over Mont Blanc in a biplane photographing the alpine landscape. Exactly 100 years later, researchers from the University of Dundee in Scotland have recreated ...

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Photograph

A photograph (often shortened to photo) is an image created by light falling on a light-sensitive surface, usually photographic film or an electronic imager such as a CCD or a CMOS chip. Most photographs are created using a camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of what the human eye would see. The process and practice of creating photographs is called photography. The word "photograph" was coined in 1839 by Sir John Herschel and is based on the Greek φῶς (phos), meaning "light", and γραφή (graphê), meaning "drawing, writing", together meaning "drawing with light".

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