News tagged with visible light

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A nanosized hydrogen generator

(Phys.org) —Researchers at the US Department of Energy's (DOE) Argonne National Laboratory have created a small scale "hydrogen generator" that uses light and a two-dimensional graphene platform to boost ...

Sep 20, 2014
4.5 / 5 (35) 17

Image: Crescent Mimas

A thin sliver of Mimas is illuminated, the long shadows showing off its many craters, indicators of the moon's violent history.

Sep 16, 2014
5 / 5 (4) 1

Ray tracing and beyond

Ray tracing is simple to explain at one level: "We all do it all day long: That's how you navigate the world visually," Gene Tracy explains. "The fact that I know that you're sitting there and not over there is because the ...

Sep 01, 2014
4.5 / 5 (4) 0

New technology illuminates colder objects in deep space

Too cool and faint, many objects in the universe are impossible to detect with visible light. Now a Northwestern University team has refined a new technology that could make these colder objects more visible, paving the way ...

Jul 09, 2014
4.8 / 5 (9) 1

Smartphone radiation detector app tests positive

The popularity of smartphones continues to grow with the availability of an ever-growing range of applications. The app, Radioactivity Counter, is designed to measure a person's exposure to radiation. It claims ...

Jun 30, 2014
4.1 / 5 (8) 1

A better imager for identifying tumors

Before they excise a tumor, surgeons need to determine exactly where the cancerous cells lie. Now, research published today in The Optical Society's (OSA) journal Optics Letters details a new technique that c ...

Jun 19, 2014
5 / 5 (4) 0

The 'Serpent' star-forming cloud hatches new stars

(Phys.org) —Stars that are just beginning to coalesce out of cool swaths of dust and gas are showcased in this image from NASA's Spitzer Space Telescope and the Two Micron All Sky Survey (2MASS). Infrared ...

May 30, 2014
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