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[ 6 posts ] |
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JJW009
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 6:58 pm
Posts: 8767
Location: behind the sofa
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Cool. Literately. "while MIT's diode puts out more than twice as much energy in photons as it's fed in electrons, it doesn't violate the conservation of energy because it appears to draw in heat energy from its surroundings instead. When it gets more than 100 percent electrically-efficient, it begins to cool down, stealing energy from its environment to convert into more photons."Of course, you'd need over 9000 of them for a useful amount of light since we're talking picowatts. clicky_________________jonbwfc's law: "In any forum thread someone will, no matter what the subject, mention Firefly." When you're feeling too silly for x404, youRwired.net
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| Fri Apr 06, 2012 5:52 pm |
 
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l3v1ck
What's a life?
Joined: Fri Apr 24, 2009 10:21 am
Posts: 12700
Location: The Right Side of the Pennines (metaphorically & geographically)
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Low powered LED bulb? Shops will be selling it as a GU10 replacement in no time, even if it does produce sod all light.
It took me ages to find good LED bulbs.
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| Fri Apr 06, 2012 9:34 pm |
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ProfessorF
What's a life?
Joined: Thu Apr 23, 2009 7:56 pm
Posts: 12030
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| Fri Apr 06, 2012 9:41 pm |
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soddit112
Spends far too much time on here
Joined: Thu Apr 23, 2009 6:12 pm
Posts: 2020
Location: Mute City
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i hope this gets further developed, could be pretty sweet for screen backlights in tablet PCs where battery life/cooling is a problem.
"look at my screen. look again, the screen is now a heatsink!! anything is possible when you use science."
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| Sun Apr 08, 2012 2:16 pm |
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JJW009
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 6:58 pm
Posts: 8767
Location: behind the sofa
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A picowatt really is very tiny. I suspect this effect will stay in the same realm as high-temperature superconductors for quite a long time.
Of course, I hope I'm wrong. If the effect could be scaled to a more macroscopic level, the applications are enormous.
_________________jonbwfc's law: "In any forum thread someone will, no matter what the subject, mention Firefly." When you're feeling too silly for x404, youRwired.net
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| Sun Apr 08, 2012 2:34 pm |
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hifidelity2
I haven't seen my friends in so long
Joined: Fri Apr 24, 2009 1:03 pm
Posts: 5041
Location: London
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| Tue Apr 10, 2012 11:16 am |
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