28-06-2008, 21:50
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#45
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Apprentice Geriatric
Join Date: Jan 2004
Location: Darwen, Lancashire
Posts: 3,706
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Re: Ufo's
Quote:
Originally Posted by Boeing Guy
Sorry, but I have don't believe we are being buzzed by Aliens.
Firstly they have no idea we are here,according to SETI, very few of our radio and tv transmissions will have escaped into space and although they travel at the speed of light they get weaker the further they go and will eventually get drowned out by the background electromatic radiation caused by the 'big bang'.
Okay so now we have space craft that have left the planet and now solar system, such as Voyager, are not that far out of our solar system
Then there is the small question of interstellar travel, being able to travel at the speed of light is one thing, but traveling such distances is another matter.
Why if there are such life forms do they not get in contact with us?
Why not land in Hyde Park?
I am not saying that the universe is devoid of life, just I don't beleive in UFO's
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Any radio frequency above about 40 MHz will pass through the ionised layer surrounding the earth and continue forever into space unless it hits a solid object and gets reflected back or is scattered.
Voyager sends back pictures from several million miles away and it sure won’t have a super powerful transmitter like we have back on earth, yet we get the pictures. Some of our radio and TV transmitters are rated in mega watts feeding an omni directional aerial. Some of those radio waves will undoubtedly travel direct into space and some will get bounced off the earth and buildings and carry on into space. Whether anyone has picked them up and deciphered them is another matter. But then we pick up radio signals from outer space and so far haven’t been able to decipher them, if there is anything to decipher. If you built a VHF receiver that was able to pick up the AM frequencies you would ‘hear’ the silence of the carrier wave but not the sound modulating it. Mr A. Lien may not know about FM and AM so he won’t be able to decipher the signals and put them down to random radiation. Just like we do.
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