- #36
Hurkyl
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" It is recalled that one of the most fundamental laws of physics leads to the prediction that all matter emits electromagnetic radiation. That radiation, called Planck's radiation, covers an electromagnetic spectrum that is characterized by the absolute temperature of the emitting matter. From astronomical observations we observe that most matter in the universe is in the gas phase at 3 K. Stars of course are much hotter. The characteristic Planck's spectrum, corresponding to 3 K, is actually observed in the universe exactly as required. "
(emphasis mine)
The article says that we observe the matter at 3K, and happily mentions that we observe a 3K spectrum corresponding to the matter at 3K. It does not explain why the matter should be at 3K in the first place...
Now if this matter is in constant bombardment by electromagnetic radiation it is obvious that it is bound to absorb some of this radiation which will raise the absolute temp above absolute zero. So we have slightly thermalized matter emitting Planck radiation characterized by its temp.
The basic laws of heat transfer would also demand that the further a region of space is from a heat source (such as a star), the cooler that region of space has to be.
So the only option I can see that you could be presuming is that the reason the matter is at 3K is because of constant bombardment from the 3K CBR... but the 3K CBR is the reason the matter is at 3K... you've ran into circular reasoning!
Ok first you tell me why on Earth you would expect it to be infinite?
I did. See:
The energy received from a star drops off as the square of the distance from the star... but the number of stars at a particular distance increases as the square of distance.
I'm presuming that you believe in an eternal, infinite, homogeneous universe. (If you don't, please explain the shape of the universe as you believe it to be)
The rate of electromagnetic energy emitted by a star is inversely proportional to the square of the distance from a star. However, due to homogeneity, the number of stars at a particular distance is proportional to the square of the distance. Thus, the energy received from stars at a particular distance is constant; it does not taper off as distance increases. Therefore, if the universe is infinite and eternal, the energy we are receiving right this instant from all of the stars in the universe is infinite.
Anyways, here are some factual errors at electric-cosmos (I'll ignore the historical errors):
The strength of the magnetic field produced by an electric current (e.g., a cosmic sized Birkeland current) falls off inversely as the first power of the distance from the current.
Magnetostatic field strength is inversely proportional to the square of the distance from the source, just like with electrostatics and classical gravitation.
The author has made an amateur error of confusing the formula for the magnetostatic field from a wire of infinite length with the field generated by source elements.
Anyways, there is a fatal flaw in electromagnetic theories of cosmology; negatively charged bodies react in the opposite way from positively charged bodies, and neutral bodies don't react at all! The site does not seem to address this problem whatsoever.