skydiver almost gets struck by meteorite





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  1. #1
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    Default skydiver almost gets struck by meteorite

    Where are the stats experts?

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    DAMN!!!! That guy's LUCKY - and then some.
    Stay Safe
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    Now that is "Skid Mark" stuff....

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    Meteorite?

    Meteorites arrive at somewhere between 10km/second and more.

    thats 400m per frame off a go pro at 25 fps. Minimum. you won't even see it pass by at close range.

    It looks more like someone threw that rock. weird.

  5. #5
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    Maybe it was packed in someones 'chute? If it was filming in 60fps or 30fps might change calculations.

    Edit: There are some pretty good calculations here:

    http://norskmeteornettverk.no/wordpress/?p=1329
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    Owen stats are easy bud. You have the same chance of getting hit by a meteorite while skydiving as the chance that JZ will pay for Nkandla out of his pocket.
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    I think it was a "boeing bomb" like in the movie joe dirt


    http://www.youtube.com/watch?v=Rtm8w3o63AA

    edit added you tube video to explain
    Last edited by whatyamacallit; 2014/04/04 at 01:27 PM.
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    The relative speed between the rock and the jumper makes it highly unlikely to be a meteor....not meteorite, well, not yet at that stage.

    Although it would slow down to terminal velocity, it being very dense, even that is helluva fast. MUCH faster than 4 frames? from a camera held by a guy hanging from an open chute.

    I think these jumpers set it up to attract attention.
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    http://www.news24.com/Travel/Interna...orite-20140404


    When a meteoroid enters the Earth’s atmosphere it forms a blazing track across the sky and becomes a meteor.

    When the light disappears, the meteorite enters the stage called 'dark flight,'and falls straight down.

    Helstrup's video footage is the first ever that manages to capture a meteorite in this 'dark flight' mode.



    I call BS.

    even if you 'only' dropped a rock from a plane, never mind slowed it down from interstellar speeds, it's still going to be moving a bit after a few seconds.

    gravity at 10m/s/s, and the terminal velocity of a rock is pretty high as it has low drag for it's weight.

    a 'spread' skydiver does around 200km/h or 60m/s, if they dive (head down) it's faster. a dropped rock must be good for well over 250m/s or 800km/h after 25 seconds. I'm betting way more. once the chute is up they are doing about 10m/s

    differential speed would still be huge - I say that rock was added in post...
    Last edited by Apocalypse; 2014/04/04 at 01:57 PM.

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    Cant be meteor... When a meteoroid enters the atmosphere, friction, pressure, and chemical interactions with the atmospheric gases cause it to heat up and radiate that energy, thus forming a fireball, also known as a meteor or shooting/falling star.

    None of the above was seen on the vid.

    Also thinks that skydivers done this for attention....

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    Quote Originally Posted by leonlieb View Post
    Cant be meteor... When a meteoroid enters the atmosphere, friction, pressure, and chemical interactions with the atmospheric gases cause it to heat up and radiate that energy, thus forming a fireball, also known as a meteor or shooting/falling star.

    None of the above was seen on the vid.

    Also thinks that skydivers done this for attention....
    Not all the way to earth. Only really big ones do that, and they leave big holes where they hit.

    Done some calculations quickly. Not perfect, but close enough for a good guess.
    Terminal velocity for an iron based object that far into the atmosphere is roughly 140m/s
    Terminal velocity for a guy hanging from an open parachute is roughly 5m/s
    Differential speed = 135m/s
    @ a frame rate of 29 frames per second (the slide show effect makes it highly unlike that it is high speed footage) that would mean that rock will travel just under 5m per frame, in relation to the jumper....
    Last edited by Sakkie; 2014/04/04 at 02:08 PM.
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  12. #12
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    it does look suspiciously smooth and grey.
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    If a chunk of meteoroid passed him and he was lucky enough to film it he would be in a heap of trouble when that sized stone hits earth sort of a fire and brimstone landing
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    Quote Originally Posted by Sakkie View Post
    Not all the way to earth. Only really big ones do that, and they leave big holes where they hit.

    Done some calculations quickly. Not perfect, but close enough for a good guess.
    Terminal velocity for an iron based object that far into the atmosphere is roughly 140m/s
    Terminal velocity for a guy hanging from an open parachute is roughly 5m/s
    Differential speed = 135m/s
    @ a frame rate of 29 frames per second (the slide show effect makes it highly unlike that it is high speed footage) that would mean that rock will travel just under 5m per frame, in relation to the jumper....
    Don't know what the shutter speed is on a go pro, but it's usually 1/frame rate.

    as far as I know, the Go Pro records like a TV refreshes - records from top down over and over, so you don't lose the shutter close monent like an old school movie camera.

    the rock is perfectly focused and still - no motion blur - in every frame like a 1/1000 shutter speed shot. with a 5m motion it should just be a streak.

    definitley added in post...
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    http://www.universetoday.com/110963/...es-it-on-film/


    multiple frame picture on this page... definitley doesn't look real to me!

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    Pause the video, and go through it frame by frame. Prior to the "meteor" lots of sun glare. The four frames showing the rock have dark blue sky with zero glare, the 5th frame (no rock) has glare again.... Photography does not work like that.....and I don't believe in coincidence when it comes to things like this.

    Also, if you follow the path of the rock, the 5th frame should still have the rock.

    This is fake.
    Last edited by Sakkie; 2014/04/04 at 02:52 PM.
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  17. #17
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    Some evidence of it being a stowaway piece of gravel in the 'chute.

    http://www.planetary.org/blogs/guest...allistics.html
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