Quote:
Originally Posted by GrimJosef
Depends what you call 'far' infrared. All room temperature objects (say 300K) radiate infrared, and if their spectrum is anything like a black-body then the wavelength of peak radiation is around 10 micrometres. As the temperature goes up, the wavelength comes down in inverse proportion. So the surface of the sun, at close to 6000K, has a spectral peak in the yellow-green, close to 0.5 micrometres. The spectrum is very broad of course, so even the sun emits plenty of infrared.
Cheers,
GJ
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Yes that is true. But the radiated energy depends on the emissivity of the surface. Which means that the object has to be black in the relevant region of the spectrum.
However since any thermal radiator will only radiate if there is a difference in temperature between the radiator and the environment (Second laws of thermodynamics "When two initially isolated systems in separate but nearby regions of space, each in thermodynamic equilibrium with itself but not necessarily with each other, are then allowed to interact, they will eventually reach a mutual thermodynamic equilibrium"), what Furutech are actually saying is that their mains connector initially gets hotter than the room in which it is located.
Which means that what they are saying is that their exceptionally expensive connector has a significant contact resistance, is consequently is pretty useless.