News tagged with visible light

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Snapshot of cosmic burst of radio waves

A strange phenomenon has been observed by astronomers right as it was happening - a 'fast radio burst'. The eruption is described as an extremely short, sharp flash of radio waves from an unknown source in ...

Jan 19, 2015
4.6 / 5 (39) 15

Light replaces the needle

One in twelve children are born prematurely in Switzerland. If hypoglycemia develops in these premature babies and persists for over an hour, it can affect brain development. In order to prevent this, the ...

Jan 21, 2015
5 / 5 (5) 0

Plasmonic device converts light into electricity

(PhysOrg.com) -- While the most common device for converting light into electricity may be photovoltaic (PV) solar cells, a variety of other devices can perform the same light-to-electricity conversion, such ...

Nov 09, 2011 feature
4.6 / 5 (17) 3 | with audio podcast

Nano-LEDs emit full visible spectrum of light

(PhysOrg.com) -- Physicists from Taiwan have designed and fabricated nano-sized light-emitting diodes (LEDs) that emit light spanning the entire visible spectrum. Although the tiny full-color LEDs aren't intended ...

Jun 17, 2011 feature
4.9 / 5 (18) 2 | with audio podcast

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) 15

The human eye can see 'invisible' infrared light

Any science textbook will tell you we can't see infrared light. Like X-rays and radio waves, infrared light waves are outside the visual spectrum. But an international team of researchers co-led by scientists ...

Dec 01, 2014
4.6 / 5 (82) 21