Radio signals from space

Discussion in 'General Chit Chat' started by 336wheeler, Feb 12, 2020 at 9:58 AM.

  1. 336wheeler

    336wheeler Well-Known Member

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  2. Cherokeekid88

    Cherokeekid88 Well-Known Member

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    I find anything related to space to be super fascinating. I always try to remember if something is 500 million light years away and omits a radio signal, how long does it take to reach us, so when did this radio signal first occur?
     
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  3. RHSCTJ

    RHSCTJ Well-Known Member

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    They are probably trying to figure out who sent dick pics and animal noises.
     
  4. 336wheeler

    336wheeler Well-Known Member

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    And honestly, unless something can travel faster than the speed of light - which is posited to be impossible for an object with mass - if it’s 500 million light years away that’s 500 million X 6 trillion (3e21) (miles) away... is it even relevant? Will we ever get there in the foreseeable next thousand centuries?

    If there’s some rad society out there 3e21 miles away, doubt that we would ever know - sans passive observation.
     
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  5. junkxj

    junkxj Well poop!!!!!

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    That would mean it was emitted 500 million years ago, assuming its traveling at roughly the speed of light
     
    Last edited: Feb 12, 2020 at 11:42 PM
  6. junkxj

    junkxj Well poop!!!!!

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    I love anything like this science related.
    But on a sad note, these frb signals couldnt be a distant civilization trying to get our attention, they require more energy than a star will generate in its lifetime to be produced.
     
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  7. junkxj

    junkxj Well poop!!!!!

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    Technically a photon can in theory travel faster than the speed of light when it encounters the gravity of a black hole. IIRC this is how the theroy of time and distance not being constant was first discovered.

    I.e. space and time being distorted by massive (black hole) gravitational fields.
     
    Last edited: Feb 12, 2020 at 11:42 PM
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  8. junkxj

    junkxj Well poop!!!!!

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    Somewhat relevant, but not able to be connected yet by physics

    The current understanding of quantum mechanics states that 2 electrons (with measurable mass) can be in 2 different points at the same time (quantum entanglement).

    This proves that particles can travel faster than the speed of light, but current science has yet to understand how this is possible when related to general physics.

    Yep, I am a nerd
     
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  9. Cherokeekid88

    Cherokeekid88 Well-Known Member

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    I thought that was the way it worked, but wasn't entirely sure.

    I find the story of Voyager 1 and 2 to be super interesting. Knowing that this is the furthest anything man made has traveled in space and can still receive and send out signals and be controlled after traveling for over 42 years is incredible.

    I still struggle with how a black hole works and all that jazz
     
  10. UTfball68

    UTfball68 Well-Known Member

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    Geez and I’m over here like, my high school physics class did a good job helping me understand some of the stuff they talk about on Big Bang Theory.
     
  11. BigClay

    BigClay Well-Known Member

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    You guys geeked out on me, i am over here trying to figure out if train A left the station at 8 am traveling at 55 mph and train B left the station traveling at 65 mph, what hair color did each conductor have :lol:
     
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  12. junkxj

    junkxj Well poop!!!!!

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    What's crazy to think about, is the technology available when those 2 craft were built. The computing power of all the main frame computers owned by NASA at the time would be a fraction as efficient as a modern smartphone.
     
  13. junkxj

    junkxj Well poop!!!!!

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    If you want to read something that will make your head hurt, check out string theroy, and the newest understanding of the bubble theroy in physics.
     
  14. BigClay

    BigClay Well-Known Member

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    Hard pass... i need a lot more pictures and smaller words than I bet they have :D
     
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  15. Cherokeekid88

    Cherokeekid88 Well-Known Member

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    It really is, and what boggles my mind is that they can still control it somewhat from earth. I mean, how does that even work? When they send a signal to it, is it days before it gets to it and sends information back or what?
     
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  16. junkxj

    junkxj Well poop!!!!!

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    I think it takes roughly 20-22 hours for the radio signals to travel each way.
     
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  17. Cherokeekid88

    Cherokeekid88 Well-Known Member

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    man that's crazy. Makes me want to go home and watch 2001: A Space Odyssey and Interstellar.
     
  18. tkeaton

    tkeaton Master Velocipede Alchemist

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    *cough* flatearth *cough*
     
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  19. skyhighZJ

    skyhighZJ Thanks for your taxes

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    Yet my cell phone doesn’t have consistent signal 5 miles from a known AT&T cell tower :rolleyes:
     
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  20. junkxj

    junkxj Well poop!!!!!

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    Try the movie contact. It was based on the first frb signal detected. Really good movie!!
     
  21. Lizooki

    Lizooki Well-Known Member

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    6.5 GHz ..... some alien in space is making superfast microwave popcorn! btw- I know microwaves are 2.4 GHz
    Terrestrial microwave comms are anywhere from 30 to 300GHz ( with some oddball stuff).
    But that's microwave frequencies more or less which is basically line of sight.
    Kinda like a radar gun ...... it's gotta be pointed at you.
    Interesting.
    I wonder how they came to the conclusion of where it came from. The power to send a microwave signal that distance is beyond my comprehension.
    And I'm a radio geek.
     
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  22. Mac5005

    Mac5005 Welding Instructor

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    It’s probably from the aliens creating more lazarium 115.
     
  23. RatLabGuy

    RatLabGuy You look like a monkey and smell like one too

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    All this shit on the radio, and still nothing worth listening to.
     
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  24. frankenyoter

    frankenyoter No Rain, No Rainbow

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    Interstellar was a good one. Not that 2001 wasn’t.

    space stuff is fascinating. What perplexes me is how we try to fit all this stuff into our box of knowledge that keeps expanding. We don’t have a clue really. Just trying to fake it till we make it. It’s almost like children explaining stuff that we keep understanding more at a time. What’s out there is a really really really really big topic and how it works is even bigger.
     
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  25. Lizooki

    Lizooki Well-Known Member

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    The more we think we know .... the more it's just theory.
     

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