News tagged with light signal

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 not rated yet 0

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

Color sensors for better vision

CMOS image sensors in special cameras -- as used for driver assistance systems -- mostly only provide monochrome images and have a limited sensitivity to light. Thanks to a new production process these sensors ...

Oct 05, 2009 not rated yet 0

Lasers generate underwater sound

Scientists at the Naval Research Laboratory (NRL) are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. The new ...

Sep 04, 2009 4.6 / 5 (9) 6

Vigilant windows

Is someone sneaking around in front of the window trying to break in? Windows and doors are now being sensitized to suspicious movements: they can detect whether and how quickly something is moving. If it ...

Mar 17, 2009 5 / 5 (1) 0