was the laptop plugged in? Many laptops with high end p4 (which need >80W in full mode) clock them down to as low as 600MHz when running from batteries.
Even a exploding nuke power plant wouldnt cost as many lives as those unspectacular rotting potatoes did. I have seen estimations of around 700000 deads.
People tell this for decades now, and nobody has ANY proof or statistic. Its just "known" that solar cells have a negatice energy balance.... Yeah. And exploding gasoline in a metal enclosure will NEVER get something moving faster than a horst, it is known...
For illumination, OLEDS will probably never see primetime. They have other uses, where normal GaIxxx Leds fail, like displays, ect. But these dont require high light densities, and OLEDs are based on organic substances who are quite happy to disintegrate under heat.
Those arent the LEDs you should looking at. http://www.lumiled.com/luxeon/products/luxeon III_i ndex.html
This are the babys for serious room illumination. http://www.lumiled.com/luxeon/products/luxeonIII_i ndex.html 3.xV, 1000mA. And around 3-5 times the lumen efficency of your traditional bulb. And its only 30$ or so (if i remember correctly). So this is around 15 times more power/money than your example.
Sure, more expensive in the beginning, but in situations where broken bulb does not only mean 1$ for a new bulb, but working time to replace it, or simply a room being dark that SHOUDNT be dark, the 100.000 hour lifetime should be quite a bonus.
Especially considering that LEDS dont "break", but fade. If not electrocuted, they become slowly dimmer. The 100.000h usually means the time where they are only at 50% or so output. So even a long time after that, it would still produce light, even if its not a lot.
flickering is normaly no problem because they run on 2-3V DC. and if you are doing more than a ultra cheap solution, you can spend the 0.1$ to include a filtering cab.
There are already solutions which use the standart halogen sockets (those with the 12V rails) and simple put 4 diodes in series. Simple plug and play installation. And considering that leds cant break while switching (at least not like bulbs), it can even nowadays be money efficient in situations where a light has to be switched a lot.
The cost seems too much. Sure that there isnt a 500% designer increase on the price tag?
For usage like room illumination, only the lumiled luxon star leds would be well suited. They are not cheap, but not too expensive compared with halogens either (especially because they can be switched infinitly and not overdriven they should last for many years). You can get 100W equivalent in luxon stars for arond 100-200$. 10 of these should be enough for a normal sized appartment (60-70 m^2). You have to consider that the smaller granularity of the light sources (one luxon star has around 3-10W equivalent) you can have much more effective illumination, reducing waste in "brightspots" near the light sources. So even with installation (comparable effort to 12V halogen) it shoudnt cost more than 5-10 K$ to fullfill even the most fancy demands in led room illumination. 50K seems WAY too much.
oh my. Should have known better:) Yeah, the A64 3000 runs at 2Ghz with 512K cache. But those little controlers, if you dont need 512K rom, you can get controllers for a few cent that could do the job. All you need are a few 10000 transistors, in a time where every gpu has 50 million+
Sorry, but for 100$ you get a a64 3000+. You know, 1024KiB high speed cache, 6.4GB/s HT io, ect. Those little microcontrollers cost you 5$ at most if you buy a few 1000.
6-7 years ago a buissnes partner of my father bought a 35000$ color xerox machine(a thermosublimation printer, to be exact). If you tried to copy DM or $ notes, it just printed black rectangles.
Yeah, the only thing worse than a neil stephanson book is the german translation of one. You can really feal the struggle of the translater to decide if its supposed to be funny simply dumb...
It is not a closed system, so it looses energy from blackbody radiation. Also, a BCE you have if all particles are in their groundstate and build a homogenous waveform. For atoms, you need really low thermal energy to archive this ( lower than 500nK or so). But what if there are some strange(not the strange, but others) quarks that only exist in such enviroments and the energy is just enough to create them in their groundstate? There are tons of possibilies in strange enviroments. Here on earth we would all be happy to have a superconductor working at room temperature (300K), but in every neutron star there is a supercunduction shell with temps >10^6K. Just because the high pressure enables the rest of the protons to build cooper pairs....
Also, normal physical laws _may_ not be appliable in really strange situations. Many theories about quantum graviatations contain higher order terms that are neglectable everywhere but such situation,ect.
Btw, why does a "" before a number break text input if posting as plain old text? (ok, it isnt displayed, i mean a "smaller" sign)
It is not a closed system, so it looses energy from blackbody radiation. Also, a BCE you have if all particles are in their groundstate and build a homogenous waveform. For atoms, you need really low thermal energy to archive this (10^6K. Just because the high pressure enables the rest of the protons to build cooper pairs....
Also, normal physical laws _may_ not be appliable in really strange situations. Many theories about quantum graviatations contain higher order terms that are neglectable everywhere but such situation,ect.
And nowadays it becomes more and more clear that there isnt much of an advantage anymore. All "Cisc" chips are risc cores with a decoder frontend, and the "cheaply developed" Power PCs before the G5 were slaughtered by X86 in any bench but photoshop gaussian blur.
And the G5 is only a sideproduct from IBMs Power4 program, which cant really be descriped with "low R&D expenses".
Easy. Just keep the presure at around 30-40 mBar. Pump away any gas that evaporates. The at long as the pressure doesnt increase the rest will keep its temprature. Of coure you need a lot of helium, some Really Big turbo pumps, and a LOT of energy (around 50 to 100 times the amount the helium absorbs...),ect... (i didnt say it was trivial...)
a better analogy (considering the size of sourcecodes) Open sorce is a huge forest (with the skeleton hidden in it), closed source has an additional wall around it.
Only because you can open the source in vi (and your 100 pals, too), doesnt mean you have the time to spend the needed hundreds of man years to review every line...
There is the phenomenon called superfluidity, which is closely connected to "thermal superconductivity". Helium4 below 2.6 or so Kelvin becomes a superfluid. In this state, there cant be a thermal gradient anymore. Heat is transfered with the speed of sound. If you would use this to cool a cpu (doesnt work, because the doted SI becomes not so dotted at that temp), there wouldnt be any bubbles, only evaporation on the surface.
Well, that review sucked, at least be normal anandtech standarts. Hey, its a CPU bench, so why are 2/3 of the game benches gpu-limited and all processors are within 2-3%?
Slashdot Mirror
And those audiophiles will still claim that their vinyl sounds better...
was the laptop plugged in?
Many laptops with high end p4 (which need >80W in full mode) clock them down to as low as 600MHz when running from batteries.
Even a exploding nuke power plant wouldnt cost as many lives as those unspectacular rotting potatoes did.
I have seen estimations of around 700000 deads.
People tell this for decades now, and nobody has ANY proof or statistic.
Its just "known" that solar cells have a negatice energy balance....
Yeah. And exploding gasoline in a metal enclosure will NEVER get something moving faster than a horst, it is known...
Its not just the power bill. 1000W heat emission can change a "nice" room into a "i need air conditioning" room....
versus fluorescent they lose. They are around halfway between fluroscent and halogen in efficiency, but have of course size/switchability advantages
For illumination, OLEDS will probably never see primetime.
They have other uses, where normal GaIxxx Leds fail, like displays, ect. But these dont require high light densities, and OLEDs are based on organic substances who are quite happy to disintegrate under heat.
Those arent the LEDs you should looking at.n III_i ndex.html
i ndex.html
http://www.lumiled.com/luxeon/products/luxeo
This are the babys for serious room illumination. http://www.lumiled.com/luxeon/products/luxeonIII_
3.xV, 1000mA. And around 3-5 times the lumen efficency of your traditional bulb. And its only 30$ or so (if i remember correctly). So this is around 15 times more power/money than your example.
Sure, more expensive in the beginning, but in situations where broken bulb does not only mean 1$ for a new bulb, but working time to replace it, or simply a room being dark that SHOUDNT be dark, the 100.000 hour lifetime should be quite a bonus.
Especially considering that LEDS dont "break", but fade. If not electrocuted, they become slowly dimmer. The 100.000h usually means the time where they are only at 50% or so output. So even a long time after that, it would still produce light, even if its not a lot.
flickering is normaly no problem because they run on 2-3V DC. and if you are doing more than a ultra cheap solution, you can spend the 0.1$ to include a filtering cab.
There are already solutions which use the standart halogen sockets (those with the 12V rails) and simple put 4 diodes in series. Simple plug and play installation. And considering that leds cant break while switching (at least not like bulbs), it can even nowadays be money efficient in situations where a light has to be switched a lot.
The cost seems too much. Sure that there isnt a 500% designer increase on the price tag?
For usage like room illumination, only the lumiled luxon star leds would be well suited. They are not cheap, but not too expensive compared with halogens either (especially because they can be switched infinitly and not overdriven they should last for many years). You can get 100W equivalent in luxon stars for arond 100-200$. 10 of these should be enough for a normal sized appartment (60-70 m^2). You have to consider that the smaller granularity of the light sources (one luxon star has around 3-10W equivalent) you can have much more effective illumination, reducing waste in "brightspots" near the light sources.
So even with installation (comparable effort to 12V halogen) it shoudnt cost more than 5-10 K$ to fullfill even the most fancy demands in led room illumination. 50K seems WAY too much.
if you have a link to a halogen lcd backlight, please post...
(meaning: there arent any)
oh my. Should have known better :)
Yeah, the A64 3000 runs at 2Ghz with 512K cache.
But those little controlers, if you dont need 512K rom, you can get controllers for a few cent that could do the job. All you need are a few 10000 transistors, in a time where every gpu has 50 million+
Well, if ART is correct, the earth has NO way to know the sun is gone until the event horizon reaches it with the speed of light 8 minutes later...
Sorry, but for 100$ you get a a64 3000+. You know, 1024KiB high speed cache, 6.4GB/s HT io, ect.
Those little microcontrollers cost you 5$ at most if you buy a few 1000.
then it would be white, not black, dont you agree?
6-7 years ago a buissnes partner of my father bought a 35000$ color xerox machine(a thermosublimation printer, to be exact). If you tried to copy DM or $ notes, it just printed black rectangles.
B
Yeah, the only thing worse than a neil stephanson book is the german translation of one.
You can really feal the struggle of the translater to decide if its supposed to be funny simply dumb...
It is not a closed system, so it looses energy from blackbody radiation.
Also, a BCE you have if all particles are in their groundstate and build a homogenous waveform. For atoms, you need really low thermal energy to archive this ( lower than 500nK or so). But what if there are some strange(not the strange, but others) quarks that only exist in such enviroments and the energy is just enough to create them in their groundstate?
There are tons of possibilies in strange enviroments. Here on earth we would all be happy to have a superconductor working at room temperature (300K), but in every neutron star there is a supercunduction shell with temps >10^6K. Just because the high pressure enables the rest of the protons to build cooper pairs....
Also, normal physical laws _may_ not be appliable in really strange situations. Many theories about quantum graviatations contain higher order terms that are neglectable everywhere but such situation,ect.
Btw, why does a "" before a number break text input if posting as plain old text? (ok, it isnt displayed, i mean a "smaller" sign)
It is not a closed system, so it looses energy from blackbody radiation.
Also, a BCE you have if all particles are in their groundstate and build a homogenous waveform. For atoms, you need really low thermal energy to archive this (10^6K. Just because the high pressure enables the rest of the protons to build cooper pairs....
Also, normal physical laws _may_ not be appliable in really strange situations. Many theories about quantum graviatations contain higher order terms that are neglectable everywhere but such situation,ect.
Slashdot without comments would have around the same information density as a book without letters...
And nowadays it becomes more and more clear that there isnt much of an advantage anymore.
All "Cisc" chips are risc cores with a decoder frontend, and the "cheaply developed" Power PCs before the G5 were slaughtered by X86 in any bench but photoshop gaussian blur.
And the G5 is only a sideproduct from IBMs Power4 program, which cant really be descriped with "low R&D expenses".
Easy. Just keep the presure at around 30-40 mBar. Pump away any gas that evaporates. The at long as the pressure doesnt increase the rest will keep its temprature.
Of coure you need a lot of helium, some Really Big turbo pumps, and a LOT of energy (around 50 to 100 times the amount the helium absorbs...),ect... (i didnt say it was trivial...)
a better analogy (considering the size of sourcecodes)
Open sorce is a huge forest (with the skeleton hidden in it), closed source has an additional wall around it.
Only because you can open the source in vi (and your 100 pals, too), doesnt mean you have the time to spend the needed hundreds of man years to review every line...
There is the phenomenon called superfluidity, which is closely connected to "thermal superconductivity".
Helium4 below 2.6 or so Kelvin becomes a superfluid. In this state, there cant be a thermal gradient anymore. Heat is transfered with the speed of sound.
If you would use this to cool a cpu (doesnt work, because the doted SI becomes not so dotted at that temp), there wouldnt be any bubbles, only evaporation on the surface.
Even if its,e.g, a long heatpipe.
Well, that review sucked, at least be normal anandtech standarts. Hey, its a CPU bench, so why are 2/3 of the game benches gpu-limited and all processors are within 2-3%?