News tagged with light emission

Astronomers detect coolest radio star

(Phys.org) -- Astronomers using the world's largest radio telescope, at Arecibo, Puerto Rico, have discovered flaring radio emission from an ultra-cool star, not much warmer than the planet Jupiter, shattering the previous ...

Apr 18, 2012 4.3 / 5 (3) 6 | with audio podcast

All set and ready to glow

A new technique that paves the way for manufacturing affordable LED light bulbs is to be exploited in the UK, in a deal that researchers say could have a dramatic impact on carbon emissions.

Feb 07, 2012 5 / 5 (1) 1

Vehicles of 2017 could get 54.5 mpg

One of the most powerful points in Thomas Friedman's book, "Hot, Flat and Crowded," was that when President Ronald Reagan rolled back fuel efficiency standards for American vehicles, it wasted an amount of petroleum equivalent ...

Nov 21, 2011 3.6 / 5 (5) 9