News tagged with light signal

New material promises faster electronics

The novel material graphene makes faster electronics possible. Scientists at the Faculty of Electrical Engineering and Information Technology at the Vienna University of Technology (TU Vienna) developed light-detectors ...

Jun 28, 2011
4.5 / 5 (4) 0

Discovery alters conventional understanding of sight

A discovery by a team of researchers led by a Syracuse University physicist sheds new light on how the vision process is initiated. For almost 50 years, scientists have believed that light signals could not be initiated unless ...

Jun 23, 2011
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Nanoscale waveguide for future photonics

The creation of a new quasiparticle called the "hybrid plasmon polariton" may throw open the doors to integrated photonic circuits and optical computing for the 21st century. Researchers with the U.S. Department ...

May 31, 2011
5 / 5 (4) 1 | with audio podcast

Melanopsin looks on the bright side of life

Better known as the light sensor that sets the body's biological clock, melanopsin also plays an important role in vision: Via its messengers-so-called melanopsin-expressing retinal ganglion cells, or mRGCs-it ...

Dec 07, 2010
not rated yet 0 | with audio podcast

Ecologists get fish eye view of sexual signals

Carotenoid pigments are the source of many of the animal kingdom's most vivid colours; flamingos' pink feathers come from eating carotenoid-containing shrimps and algae, and carotenoid colours can be seen among garden birds ...

Nov 10, 2010
1 / 5 (1) 0

Taking the twinkle out of the night sky

If you are like most people, you probably enjoy the twinkling of stars that blanket the sky on a clear summer night. If you are an astronomer, chances are you find it extremely annoying.

Aug 04, 2010
4.8 / 5 (11) 6 | with audio podcast

Gene causes blue light to have a banana odor

German scientists have succeeded to genetically modify Drosophila (fruit fly) larvae allowing them to smell blue light. The research team can activate single receptor neurons out of 28 olfactory neurons in ...

May 26, 2010
5 / 5 (1) 3

Light switches for nerve cells

(PhysOrg.com) -- It sounds like a neurobiologist’s dream: a light-switch that allows nerve cells to be switched on and off at will. Three scientists have found just such a light switch and are now being ...

Apr 06, 2010
4.8 / 5 (5) 0 | with audio podcast