News tagged with visible light

Related topics:

The difficulties of cataloging dark nebulae

E. E. Barnard is an astronomer perhaps best known for measuring the proper motion of a faint red dwarf about six light years away, now known as Barnard's star. But Barnard was also a pioneer of astrophotography, and he did ...

dateOct 06, 2014 in Astronomy
shares0 comments 2

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 production of the ...

dateSep 20, 2014 in Nanophysics
shares0 comments 15

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 ...

dateSep 01, 2014 in Plasma Physics
shares0 comments 0

New metamaterial gives light a one-way ticket

The light-warping structures known as metamaterials have a new trick in their ever-expanding repertoire. Researchers at the National Institute of Standards and Technology (NIST) have built a silver, glass and chromium nanostructure ...

dateJul 01, 2014 in Optics & Photonics
shares0 comments 0

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 to accurately ...

dateJun 30, 2014 in Software
shares0 comments 1