August 8th, 2003, 05:07 PM
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Corporal
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Join Date: Jun 2003
Location: Slovenia
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Re: Does Life Exist
[quote]Originally posted by Suicide Junkie:
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No, because when you send out a signal pulse, it moves out in a spherical shell. The area of the shell is proportional to r^2. Dividing the signal out along that surface, you get 1/r^2
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yes, yes I realize that normal enery disperses at that rate because of spacial enlargement... but Em waves are a combination of magnetic and dipole movement... I haev a vague memory that my physics book even has it derived somewhere that EM transmissions actually fade at 1/r^3 because of dipole movement on the antena...
I fo course could be wrong .. itīs been two years since I studied physics carefully 
[ August 08, 2003, 16:13: Message edited by: JurijD ]
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