Is there lag in mirrors?

Discussion in 'The Edge of the Forum' started by Haloman800, Feb 5, 2014.

  1. Haloman800
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    Haloman800 a real gril

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    When I see a reflection in a mirror, is there any lag between me waving my hand and it appearing in the mirror? Something like .000000000000000000000001 maybe?
     
  2. Black-Ice

    Black-Ice Founder of the Church of Renamon

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    Let me ask you this,
    How can mirrors be real If our eyes aren't real?
    [​IMG]
     
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  3. Clarky

    Clarky Don't you know who I think I am?

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    how many funny cigarettes have we smoked tonight?
     
  4. Youkai

    Youkai Demon

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    yes there is as the light needs time to travel back and forth
     
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  5. Isaac

    Isaac American

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    Here? Right here? What about, say... over there?
    A very, very, very, very, very, very, small, indiscernible by human means amount of lag.
     
  6. Danny350

    Danny350 Member

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    The light would reflect so fast that there would be no practical delay, but light does take time to travel so it wouldn't be instant in reality. The time it would take would be so insignificant that no human could ever detect it with our own eyes.

    So simply put, there is a delay in a REALLY short scale of time, but we're talking about some of the smallest units of time we know.
     
  7. FAST6191

    FAST6191 Techromancer

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    The bigger question is would the lag be significant in light of thermal effects in the mirror?

    Also amusing
     
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  8. grossaffe

    grossaffe GBAtemp Addict

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    You have to deal with the speed of light through whatever medium(s) separate you from the mirror. Based on that speed and the distance separating you from the mirror (times two as the light must travel there and back) give you your propagation delay.
     
  9. Vulpes Abnocto

    Vulpes Abnocto Drinks, Knows Things

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    So there you have it. The serious question got a serious answer. There is indeed an imperceptible lag at the typical mirror-viewing distance.

    Now lets get some not-so-serious ones.
     
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  10. GameWinner

    GameWinner Take your heart

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    We need to go deeper...
     
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  11. grossaffe

    grossaffe GBAtemp Addict

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    Well if you want to start getting crazy, I always enjoyed toying with the idea of setting up a series of Mirrors around the planet in orbit or something that would give us the ability to look into the past.
     
  12. chavosaur

    chavosaur Austin Trujillo

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    Have you checked your Drivers speeds? Are you running Windows or Is this a legit mirror?
     
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  13. Chocolina

    Chocolina GBAtemp Fan

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    Actually no. Because lag isn't the best term to describe speed of light.
    .
    Theres always going to be a latency between your eyes, the mirror (or any surface reflecting light) and your eyes again, but theres never any lag because light is a constant speed that doesn't slow down under normal and most extreme conditions. Theres no lag because you're still getting the light at the fastest speed possible in the laws of physics, so as long as the speed of light can't fluctuate up and down between you and the mirror, then lag doesn't exist, because lag can't exist when something is going so fast that it literally cannot go any faster and at the same time doesn't slow down..
     
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  14. Cyan

    Cyan GBATemp's lurking knight

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    Why myopia (short-sightedness) is not fixed when looking into a mirror while the mirror is placed at a short distance from your eyes?
     
  15. Luigi2012SM64DS

    Luigi2012SM64DS G-old member

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  16. marcus134

    marcus134 GBAtemp Advanced Fan

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    light speed is about 3*10^8 m/s and described by the letter C (like E=MC²)
    if you stand at one meter of a mirror, you'll see yourself as you were exactly 2/C, 6.667*10^-9 or 0.00000000667 second earlier

    at light speed, it takes:
    1.2 to 1.3 sec for a one way to the moon
    8 min 20 sec for a one way to the sun
     
  17. Gahars

    Gahars Bakayaro Banzai

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    There may be a slight delay between you asking the man in the mirror to change his ways and making the world a better place.

    Better question: Does the wind have a pattern? If so, how does one follow it?
     
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  18. slingblade1170

    slingblade1170 GBAtemp Advanced Fan

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    Latency yes there is.
     
  19. FAST6191

    FAST6191 Techromancer

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    I would have thought the wind would be a good example of Brownian motion.
     
  20. Gahars

    Gahars Bakayaro Banzai

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    Not with vitiligo, it isn't!