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  1. #14
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    Cool to see Physics in action
    NO Brains NO Headaches

  2. #15
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    Quote Originally Posted by brainslice View Post
    Unrelated, but speaking of high speed...

    In my lab we have a multiphoton microscope used for high resolution cell imaging. It uses a pulsed infrared laser which has a pulse width of about 20 femtoseconds (0.000000000000020 sec.) and a peak power of ~ 100 kilowatts.
    I can honestly say, that's the first time I've ever heard of the word, Femtosecond. Let alone see it used in a sentence.

  3. #16
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    I can't edit the title of the thread. With the new information, I feel comfortable saying the F P S would mean Frames Per Second, not feet per second, as I first thought.

    Still,it sounds like a lot frames per second.

  4. #17
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    Quote Originally Posted by brainslice View Post
    Indeed. High speed X-ray. Exposure times in the tens of nanoseconds and frame rates above 1 million frames / second.
    Maybe an exposure in 1,000,000th of a second.

    But I doubt a frame rate of 1,000,000 PS.

    But no matter. Its a cool video.
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  5. #18
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    I guess anything's possible these days.
    Who comes up with these measurements anyway?





    A femtosecond is the SI unit of time equal to 10-15 of a second. That is one quadrillionth, or one billionth of one millionth of a second. For context, a femtosecond is to a second, what a second is to about 420 million years. To give another example, one femtosecond compared to one second is like the diameter of a human hair relative to the distance between the earth and moon

  6. #19
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    What, is this from the 1940's or something? Could you ask them to do it over in color?

  7. #20
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    Quote Originally Posted by cjett View Post
    What, is this from the 1940's or something? Could you ask them to do it over in color?
    Must be your monitor.

  8. #21
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    Maybe "color" can't record fast enough? I don't know.

  9. #22
    This high-speed technology does indeed exist. It looks like this camera, or something similar was used in those ballistics test videos.

    http://www.shimadzu.com/products/tes...000001d6t.html

    And this is just some of the more readily available stuff.....

  10. #23
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    Interesting article.

    Wonder what that camera will set ya back?

  11. #24
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    I want one.

    No idea what I would use it for after a month or so. But it would be cool for a month.
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  12. #25
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    Oct 2009
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    Mukwonago, WI
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    they have technology up to 25 million fps

    http://en.wikipedia.org/wiki/High_speed_camera

    that video is pretty neat

  13. #26
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    Quote Originally Posted by Miller257 View Post
    they have technology up to 25 million fps

    http://en.wikipedia.org/wiki/High_speed_camera

    that video is pretty neat
    Yea. And all that could be outdated by the end of next year.

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