Report This Ad (full site)
Fark.com

Back To Geek
   230% efficient LED? Lisa, in this house, we obey the laws of thermodynamics

30 May 2012 11:03 AM   |   8333 clicks   |   Wired UK
Add Comment
Showing 1-50 of 98 comments
Refresh Page 2
Majick Thise    [TotalFark]  
SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

30 May 2012 10:13 AM
Reply
Lux Lambert     
upload.wikimedia.org

Disapproves.

30 May 2012 11:06 AM
Reply
Skr     
"it begins to cool down" I sense an unintended new source of air conditioning and refrigeration.

Overall the idea of going beyond unity sounds pretty awesome.

30 May 2012 11:07 AM
Reply
Cheron     
Speaking of MIT did you hear where some one on a motorcycle slapped a sticky bomb on the side of a physicist's car.

30 May 2012 11:10 AM
Reply
mr_bunny    [TotalFark]  
You all sicken me.

This is just another socialist plot to force good, honest, God fearing, physics law abiding people to give up Edison's greatest invention.

30 May 2012 11:12 AM
Reply
Arkanaut     
Skr: "it begins to cool down" I sense an unintended new source of air conditioning and refrigeration.

Overall the idea of going beyond unity sounds pretty awesome.


Maybe refrigerators of the future will turn the lights off when you open the doors.

30 May 2012 11:12 AM
Reply
SpectroBoy     
Majick Thise: SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

If we mix these with the hot style LEDs we can convert the waste heat of the old LEDs to light and create a set that maintains an even temp.

30 May 2012 11:16 AM
Reply
MayoSlather     
I was led to believe this wasn't possible.

30 May 2012 11:17 AM
Reply
bestsportnascar     
Sounds like a good way to reverse global warming.

30 May 2012 11:18 AM
Reply
Wellon Dowd    [TotalFark]  
If we surround one of these with solar panels do we get unlimited power?

30 May 2012 11:19 AM
Reply
Honest Bender    [TotalFark]  
Sounds like a pretty good way to recycle heat waste. Maybe that's why anything technological always glows in sci-fi.

30 May 2012 11:19 AM
Reply
Ivo Shandor     
mr_bunny: This is just another socialist plot to force good, honest, God fearing, physics law abiding people to give up Edison's greatest invention.

Joseph Swan's, actually, but that's a rant for another day.

Back to the main topic:
t1.gstatic.com

69 pW is a nice start but I'd rather have a multi-MW X-ray version.

30 May 2012 11:23 AM
Reply
malle-herbert     
Peltier effect anyone ?

A led is basicly a P-N junction...

30 May 2012 11:26 AM
Reply
Donnchadha    [TotalFark]  
Skr: "it begins to cool down" I sense an unintended new source of air conditioning and refrigeration.

Overall the idea of going beyond unity sounds pretty awesome.


"Grandpa, tell us again about how old refrigerators used to have the lights go off when you closed the door!"

30 May 2012 11:27 AM
Reply
Parthenogenetic    [TotalFark]  
SpectroBoy: Majick Thise: SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

If we mix these with the hot style LEDs we can convert the waste heat of the old LEDs to light and create a set that maintains an even temp.


Sure... but why just use them as heat sinks?

Use a large batch of them to cool a device to the point where superconductivity can occur.

If this leads to a fusion engine with highly efficient heatsinks, that means... BATTLEMECHS!

i.imgur.com

30 May 2012 11:28 AM
Reply
Cthulhu_is_my_homeboy     
At 69 picowatts, I'll only need a trillion of them to light my bathroom!

30 May 2012 11:29 AM
Reply
Cthulhu_is_my_homeboy     
Parthenogenetic: SpectroBoy: Majick Thise: SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

If we mix these with the hot style LEDs we can convert the waste heat of the old LEDs to light and create a set that maintains an even temp.

Sure... but why just use them as heat sinks?

Use a large batch of them to cool a device to the point where superconductivity can occur.

If this leads to a fusion engine with highly efficient heatsinks, that means... BATTLEMECHS!

[i.imgur.com image 640x480]


Amusingly, BattleTech has had laser-based heat sinks for years...

They didn't become commonplace because you light up like a beacon at night, and that tends to draw fire.

30 May 2012 11:31 AM
Reply
traylor     
Combine it with a solar cell, and you get infinite energy.

30 May 2012 11:33 AM
Reply
DON.MAC    [TotalFark]  
You know all those annoying flashing LEDs on bikes and displays and stuff. The circuit to do that was invented by Bob Widlar.

There are lots of stories about Bob and so far I've never heard one where I wouldn't want to have a drink with the guy.

One story is he was about to be kicked out of grad school for "insane ideas about transistors" yet he built the worlds first silicon op amp based on his idea of what is right. He seemed to disagree how LEDs work as well.

LEDs hit a maximum power of maybe .5 mw until he started talking about how they really work and now they do watts not half of a thousandth.

In Fark's mind, the best story is he retired and bought a decades worth of booze yet 5 years later he went back to ask for his job back.

/My amp is designed by the man. It can run 150 W per channel forever. The 32 kw spikes are not problem either except to the speakers. It's the boundary cases that can vaporise wire that are a concern.

30 May 2012 11:33 AM
Reply
cirby     
Cthulhu_is_my_homeboy:
At 69 picowatts, I'll only need a trillion of them to light my bathroom!


At the gap sizes and voltages they were probably using, that's a piece of semiconductor about a meter square.

30 May 2012 11:35 AM
Reply
Erix    [TotalFark]  
Ivo Shandor: mr_bunny: This is just another socialist plot to force good, honest, God fearing, physics law abiding people to give up Edison's greatest invention.

Joseph Swan's, actually, but that's a rant for another day.

Back to the main topic:
[t1.gstatic.com image 172x292]

69 pW is a nice start but I'd rather have a multi-MW X-ray version.


Just reread the (first) series a few months ago. Cheesy and full of deus ex machina, they're still loads of fun.

30 May 2012 11:35 AM
Reply
Aikidogamer     
Parthenogenetic: SpectroBoy: Majick Thise: SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

If we mix these with the hot style LEDs we can convert the waste heat of the old LEDs to light and create a set that maintains an even temp.

Sure... but why just use them as heat sinks?

Use a large batch of them to cool a device to the point where superconductivity can occur.

If this leads to a fusion engine with highly efficient heatsinks, that means... BATTLEMECHS!


Yessssss. I want a Madcat MK.II.

30 May 2012 11:39 AM
Reply
meanmutton     
mr_bunny: You all sicken me.

This is just another socialist plot to force good, honest, God fearing, physics law abiding people to give up Edison's greatest invention.


Politics is two tabs over.

30 May 2012 11:44 AM
Reply
meanmutton     
Parthenogenetic: SpectroBoy: Majick Thise: SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

If we mix these with the hot style LEDs we can convert the waste heat of the old LEDs to light and create a set that maintains an even temp.

Sure... but why just use them as heat sinks?

Use a large batch of them to cool a device to the point where superconductivity can occur.

If this leads to a fusion engine with highly efficient heatsinks, that means... BATTLEMECHS!

[i.imgur.com image 640x480]


Are you as excited as I am about the new MMO Mechwarrior game coming out?

30 May 2012 11:45 AM
Reply
Burr     
Parthenogenetic: SpectroBoy: Majick Thise: SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

If we mix these with the hot style LEDs we can convert the waste heat of the old LEDs to light and create a set that maintains an even temp.

Sure... but why just use them as heat sinks?

Use a large batch of them to cool a device to the point where superconductivity can occur.

If this leads to a fusion engine with highly efficient heatsinks, that means... BATTLEMECHS!

[i.imgur.com image 640x480]


*Hits F to flush the reactor*

30 May 2012 11:48 AM
Reply
thornhill     
I saw something in an Audi car brochure that suggested that the light from its headlights gets to the objects it illuminates faster than lights on other cars.

30 May 2012 11:50 AM
Reply
Cthulhu_is_my_homeboy     
thornhill: I saw something in an Audi car brochure that suggested that the light from its headlights gets to the objects it illuminates faster than lights on other cars.

Germans must be using neutrino-based headlights.

30 May 2012 11:53 AM
Reply
badLogic    [TotalFark]  
Erix: Ivo Shandor: mr_bunny: This is just another socialist plot to force good, honest, God fearing, physics law abiding people to give up Edison's greatest invention.

Joseph Swan's, actually, but that's a rant for another day.

Back to the main topic:
[t1.gstatic.com image 172x292]

69 pW is a nice start but I'd rather have a multi-MW X-ray version.

Just reread the (first) series a few months ago. Cheesy and full of deus ex machina, they're still loads of fun.


I really wish Brinn would get off his arse and write some more in the Uplift universe. His new book Existence looks promising. It is first on my list to read when i finish school in July.

30 May 2012 11:54 AM
Reply
Fizpez     
So if I take a bunch of technical stuff I learned on Fark I end up witht following:

Layered quantum dots of current LED material and this new material should produce a thermally neutral light source of unsurpassed efficiency in an extremely small size.

/or something...

30 May 2012 11:55 AM
Reply
badLogic    [TotalFark]  
Cthulhu_is_my_homeboy: thornhill: I saw something in an Audi car brochure that suggested that the light from its headlights gets to the objects it illuminates faster than lights on other cars.

Germans must be using neutrino tachyon-based headlights.


ftfy

30 May 2012 11:56 AM
Reply
The First Four Katy Perry Albums     
Another false 'finding' of Jew science.

30 May 2012 12:00 PM
Reply
Cthulhu_is_my_homeboy     
meanmutton: Are you as excited as I am about the new MMO Mechwarrior game coming out?

I've been desperate for a new Mechwarrior game since the first time I played MW 4.

/yuck

30 May 2012 12:00 PM
Reply
Erix    [TotalFark]  
badLogic: Erix: Ivo Shandor: mr_bunny: This is just another socialist plot to force good, honest, God fearing, physics law abiding people to give up Edison's greatest invention.

Joseph Swan's, actually, but that's a rant for another day.

Back to the main topic:
[t1.gstatic.com image 172x292]

69 pW is a nice start but I'd rather have a multi-MW X-ray version.

Just reread the (first) series a few months ago. Cheesy and full of deus ex machina, they're still loads of fun.

I really wish Brinn would get off his arse and write some more in the Uplift universe. His new book Existence looks promising. It is first on my list to read when i finish school in July.


Yeah, but by the end of the second series the story got so ridiculously intergalactic in scale that it would be tough to bring it back down to a reasonable scope. If nothing else, Brin loves to put "holy shiat, did that just happen?" moments in his books, and just to have to try to immediately top them.

30 May 2012 12:11 PM
Reply
Kiler     
Fizpez: So if I take a bunch of technical stuff I learned on Fark I end up witht following:

Layered quantum dots of current LED material and this new material should produce a thermally neutral light source of unsurpassed efficiency in an extremely small size.

/or something...


You forgot to invert the phase variance on the Hisenberg generator to compensate for the capacitance overflow from the Odeon Conduits.

30 May 2012 12:32 PM
Reply
ZER0T0THEC0RE     
If these do work as intended, does that open the possibility for them to be used in conjunction with a high effeciency photovoltaic cell to create a machine that generates electricity directly from heat?

Or am I about to be arrested by the physics police?

30 May 2012 01:26 PM
Reply
lucksi     
picowatts? What is that in imperial?

Come to think of it, is there a retarded cousin to watt? Something like pound-inch of energy?

30 May 2012 01:31 PM
Reply
Edymnion     
ZER0T0THEC0RE: If these do work as intended, does that open the possibility for them to be used in conjunction with a high effeciency photovoltaic cell to create a machine that generates electricity directly from heat?

Or am I about to be arrested by the physics police?


Nope, you are 100% on target. With a sufficiently efficient solar cell, and a refined system that works at lower temperatures than the current ones do you could convert heat into light into electricity, with enough electricity not only to power the initial light, but enough left over for practical use. It could be an unlimited power supply for medical implants that runs off of your own excess body heat. It could power personal electronics like watches that are always in contact with your body (and hence your body heat) anyway.

They could be combined with current solar panel technology so that not only does the light the cell absorbs gets converted into energy, the heat from being out in the direct sun also becomes useable energy.

The ability to convert heat into electricity without the need for things like steam turbines would be *HUGE*.

30 May 2012 01:36 PM
Reply
dsmith42     
badLogic: Erix: Ivo Shandor: mr_bunny: This is just another socialist plot to force good, honest, God fearing, physics law abiding people to give up Edison's greatest invention.

Joseph Swan's, actually, but that's a rant for another day.

Back to the main topic:
[t1.gstatic.com image 172x292]

69 pW is a nice start but I'd rather have a multi-MW X-ray version.

Just reread the (first) series a few months ago. Cheesy and full of deus ex machina, they're still loads of fun.

I really wish Brinn would get off his arse and write some more in the Uplift universe. His new book Existence looks promising. It is first on my list to read when i finish school in July.


He said in an interview recently Link that he was been working on several projects concurrently. So hopefully the books will come out a wee bit faster over the next few years.

30 May 2012 01:47 PM
Reply
Bruxellensis     
Edymnion: The ability to convert heat into electricity without the need for things like steam turbines would be *HUGE*.

Yes it would.

ecx.images-amazon.com (pops)

30 May 2012 01:51 PM
Reply
schattenteufel     
Do you know what this means?

THE RETURN OF DISCO!

thegracefuldoe.files.wordpress.com

30 May 2012 01:55 PM
Reply
Fano    [TotalFark]  
Wellon Dowd: If we surround one of these with solar panels do we get unlimited power?

images4.wikia.nocookie.net

What do you know of unlimited powah?

30 May 2012 01:56 PM
Reply
loonatic112358     
Majick Thise: SO our LED TV's will now need heaters to keep them warm because we left all the damn lights on again and the house got all cold.

I was thinking that in the futures fridges won't need a little man inside to turn off the light because the light must stay on to chill the fridge

30 May 2012 02:01 PM
Reply
TabASlotB     
lucksi: picowatts? What is that in imperial?

Come to think of it, is there a retarded cousin to watt? Something like pound-inch of energy?


30 picowatts is approximately 40 femtohorsepower.

Google suggests that I may have just made up the word femtohorsepower.

/femtohorsepower

30 May 2012 02:08 PM
Reply
PsyLord    [TotalFark]  
FTA: When it gets more than 100 percent electrically-efficient, it begins to cool down, stealing energy from its environment to convert into more photons.

images.wikia.com
/didn't think that's a good idea...

30 May 2012 02:10 PM
Reply
meanmutton     
lucksi: picowatts? What is that in imperial?

Come to think of it, is there a retarded cousin to watt? Something like pound-inch of energy?


1.34102209 × 1015 horsepower.

30 May 2012 02:14 PM
Reply
meanmutton     
lucksi: picowatts? What is that in imperial?

Come to think of it, is there a retarded cousin to watt? Something like pound-inch of energy?


1.34102209 × 10-15 horsepower.

30 May 2012 02:14 PM
Reply
SpectroBoy     
MayoSlather: I was led to believe this wasn't possible.

It's not over 100% efficient if you also count the heat energy it is consuming.

However, since ambient heat is free, it's as good as 230% efficient.

30 May 2012 02:18 PM
Reply
LazarusLong42     
lucksi: picowatts? What is that in imperial?

Come to think of it, is there a retarded cousin to watt? Something like pound-inch of energy?


Foot-pound, yes. Or the more ridiculous horsepower.

30 May 2012 02:21 PM
Reply
LazarusLong42     
PsyLord: FTA: When it gets more than 100 percent electrically-efficient, it begins to cool down, stealing energy from its environment to convert into more photons.


/didn't think that's a good idea...


Okay, everyone on this tab knows who the two people on the right are. Who are the two on the left?

30 May 2012 02:26 PM
Reply
TabASlotB     
meanmutton: lucksi: picowatts? What is that in imperial?

Come to think of it, is there a retarded cousin to watt? Something like pound-inch of energy?

1.34102209 × 10-15 horsepower.


FEMTOHORSEPOWER!

lucksi: picowatts? What is that in imperial?

Come to think of it, is there a retarded cousin to watt? Something like pound-inch of energy?


Oooh, to make it more Imperial, how about British thermal units? And fortnights?

By my calculations, 30 picowatts = 0.000000034 BTUs/fortnight.

/Why yes, I am avoiding doing actual work!

30 May 2012 02:27 PM
Reply
Showing 1-50 of 98 comments
Refresh Page 2
This thread is closed to new comments.


Back To Geek

More Headlines:
Main | Sports | Business | Geek | Entertainment | Politics | Video | FarkUs | Contests | Fark Party