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#1
http://physicsworld.com/cws/article/news/48882

Because fuck you thermodynamics.

This LED can pull ambient heat from the air, and use that to create light. Because of this, the energy of the light it emits have over twice as much energy as the electricity that powers it.

It sounds impossible, but actually obeys the second law. And...seems completely wrong.
#3
Quote by FearMyLightning
So what, we can have infinite power now, just so long as it's hot outside?

That's only until the LEDs use up all of the heat.
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#4
Only 30,000$ each, but by now for 26,999$ and no money down!


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#6
Infinite energy! Troll Science actually works.
Last edited by Poglia at Mar 8, 2012,
#8
That's fantastic.

Quote by Article
However, he cautions that the cooling power of this particular device is extremely low and not great enough for any practical applications.


I has a sad.
Last edited by blake1221 at Mar 8, 2012,
#12
Too bad my mind doesn't get it,
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#14
Global warming solved
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#17
Quote by bradulator
Too bad my mind doesn't get it,

+1

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#18
Imagine trying to play a gig with one of these things being the spotlight.
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#19
Quote by blake1221
Global Brightness now a problem.


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#20
Quote by lushacrous
+1

At least you can be dumb with someone now.


herpy derpy durp
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#21
We need to find something that DOES defy the second law or else everything will turn into chaos in the end.
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#23
Now all they have to do is make buying LED light bulbs practical, price wise.
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#24
Quote by blake1221
Global Brightness now a problem.


Its gonna be the beginning of the extinction of all nocturnal animals
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#25
There's one problem with this: IF these ever get available for household use, they'll draw heat from your house, which means you'll have to turn your heater up to compensate.
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#26
Quote by the bartender
There's one problem with this: IF these ever get available for household use, they'll draw heat from your house, which means you'll have to turn your heater up to compensate.

The heat absorption is, to humans, negligible. We really won't feel any difference.
#27
Wonder how long it will be before shell owns the patents to this


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#28
Quote by Dirge Humani
The heat absorption is, to humans, negligible. We really won't feel any difference.

hmmm.. interedasting. I guess it makes sense that the energy from a small amount of heat can produce a fairly large amount of light, but it's been too long since I did any proper physics to remember all the formula.
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#29
I'll have to be honest, refrigerators were not the first think that came to mind when I read about this.
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#30
Cool, but not particularly useful.
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#31
What the fuuuuuuuuuuuuuck. This is blowing my mind.
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#32
Quote by Todd Hart
Cool, but not particularly useful.



Reduced power consumption isn't useful?
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#33
Stupid question from someone who's not very good with this stuff, but if it's 200% efficient, could you, after starting it, run it on itself?
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#34
Quote by necrosis1193
Stupid question from someone who's not very good with this stuff, but if it's 200% efficient, could you, after starting it, run it on itself?

No, it will always need more energy than it can produce. Therefore, the thingy that converts heat into light will never be able to keep itself running with the energy it produces. It needs input from another source.
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#35
Why is everyone bummed out that it can't be used for cooling things? It's still an absurdly efficient light source.

Also, how many people actually thought about the possibilities of it being used for refrigeration before reading the article? I... definitely didn't.
#36
Quote by StewieSwan
Reduced power consumption isn't useful?


It is, but it's not likely that it will be implemented in any meaningful way due to the production cost.
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#37
Quote by Todd Hart
It is, but it's not likely that it will be implemented in any meaningful way due to the production cost.

All new developments are expensive at first. It's just a phase.
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#38
Quote by Holy Katana
Why is everyone bummed out that it can't be used for cooling things? It's still an absurdly efficient light source.

Also, how many people actually thought about the possibilities of it being used for refrigeration before reading the article? I... definitely didn't.

Imagine a world where the LEDs in your computer case help cool your parts *drools*.
Quote by Todd Hart
It is, but it's not likely that it will be implemented in any meaningful way due to the production cost.

Remember how much computers used to cost?
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#39
Quote by the bartender
All new developments are expensive at first. It's just a phase.


Indeed, but cost isn't the only issue. I may be wrong, but surely as the energy output of the LED increases then so would its efficiency? After all, the ambient heat it draws on will remain at the same efficiency, meaning there would be a limit at which the LED is efficient (taking into account its manufacture as well as life). So it would be a very useful tool in situations such as internal anatomic imaging, where little light is needed and ambient heat is great, and in micro-engineering, but not as beneficial on large scale.
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#40
I find this implausible.

However, we've apparently found stuff that goes faster than the speed of light (Neutrino), so this may just be possible.

If this is real then we've got ourselves a goldmine!
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