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Thread: The WOW! Signal

  1. #1

    The WOW! Signal

    http://en.wikipedia.org/wiki/Wow%21_signal

    Wow! signal
    From Wikipedia, the free encyclopedia


    The WOW! Signal
    Credit: The Ohio State University Radio Observatory and the North American AstroPhysical Observatory (NAAPO).
    The Wow! signal was a strong narrowband radio signal detected by Dr. Jerry R. Ehman on August 15, 1977, while working on a SETI project at The Big Ear radio telescope of Ohio State University. The signal bore expected hallmarks of potential non-terrestrial and non-solar system origin. It lasted for a total of 72 seconds, the full duration Big Ear observed it, but has not been detected again. Much attention has been focused on it in the media when talking about SETI results.
    Amazed at how closely the signal matched the expected signature of an interstellar signal in the antenna used, Ehman circled the signal on the computer printout and wrote the comment "Wow!" on its side. This comment became the name of the signal.

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    Interstellar scintillation of a weaker continuous signal—similar, in effect, to atmospheric twinkling—could be a possible explanation, although this still would not exclude the possibility of the signal being artificial in its nature. However, even by using the significantly more sensitive Very Large Array, such a signal could not be detected, and the probability that a signal below the Very Large Array level could be detected by the Big Ear radio telescope due to interstellar scintillation is low.[4] Other speculations include a rotating lighthouse-like source, a signal sweeping in frequency, or a one time burst. Some have also suggested it could have come from a moving space vehicle of extraterrestrial origin.

    Ehman has stated his doubts that the signal is of intelligent extraterrestrial origin: "We should have seen it again when we looked for it 50 times. Something suggests it was an Earth-sourced signal that simply got reflected off a piece of space debris."[6]

    He later recanted his skepticism somewhat, after further research showed an Earth-bound signal to be very unlikely, due to the requirements of a space-borne reflector being bound to certain unrealistic requirements to sufficiently explain the nature of the signal.[7] Also, the 1420 MHz signal is problematic in itself in that it is "protected spectrum": it is bandwidth in which terrestrial transmitters are forbidden to transmit.[8][9] In his most recent writings, Ehman resists "drawing vast conclusions from half-vast data."

    Maybe they should put something on the moon.
    oh well

  3. #3
    One of the most fascinating questions is whether there are other SETI signals that are coming in and we are just not recognizing them. After all, if there is one thing that is potentially worse that the plastic garbage we are polluting our earth with, it is the enormous radiofrequency pollution that we have imposed on the universe. Can you imagine some other world out there being bombarded by "Desperate Housewives" or Rush Limbaugh? If I were an alien, I would steer many light years clear of this solar system.

    Part of the difficulty of analyzing the signals is to make sure that suspected SETI signals are not reflections of human-generated signals. To do that, enormous computer power is required to compare signals. Indeed, Berkeley has a very interesting program that allows everybody's computer to be used to analyze SETI signals http://setiathome.berkeley.edu/

    Wise.

  4. #4

  5. #5
    Senior Member rdf's Avatar
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    Quote Originally Posted by Lazlo View Post
    Finally, a must read: They're Made Out Of Meat
    Funny short story
    Please donate a dollar a day at http://justadollarplease.org.
    Copy and paste this message to the bottom of your signature.

    Thanks!

  6. #6

  7. #7
    "If I were an alien, I would steer many light years clear of this solar system." LMAO
    oh well

  8. #8
    Senior Member MarkPals's Avatar
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    Quote Originally Posted by kenf View Post
    "If I were an alien, I would steer many light years clear of this solar system." LMAO

    If???
    Veni.Vidi,Velcro...I came, I saw, I stuck around.

    Vidi, Vici, et Veni, et Veni, et Veni...

  9. #9
    Reminds me - when Jocelyn Bell first saw pulsar signals on the radio telescope tapes, she referred to them as LGMs (Little Green Men)!
    - Richard

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    Mark makes return being mean. way go dude , hanging with fag boy I see.
    oh well

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