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  1. #1
    Mustafa Umut Sarac's Avatar
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    Turbulent Flow Holograms as Da Vinci Experimented and Drawed

    I admire very much Leonardo Da Vinci's turbulent flow drawings at Leicester Codex.
    Leonardo invested too much time to investigate fluid flow and tried to understand , catalog the shapes in turbulence. And carried this knowledge to other subjects for example foliage or hair drawings. I read that he never copied what he sees but collect all knowledge to create attractive drawings.

    I am thinking to replay his experiments as seen and understood from his drawings at the codexes and hologram them.

    How can a water flowing from a well and pour on to a pond could be hologrammed ?

    An British woman photographer , dropped a photopaper in to the river and exposed it from the surface with flash.

    Mine is more complex but at home lab , fluid flow can be controlled .

    My idea is to make a transparent acrylic box and put a hologram glass back of it and fire a green laser to cross the turbulent water and reflect from the hologram glass and source and reflection crosses for to make a hologram .

    Is there green light sensitive hologram plate and does it work and do you have an idea ?

    Best ,

    Mustafa Umut Sarac

  2. #2
    Mustafa Umut Sarac's Avatar
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    an example
    Attached Thumbnails Attached Thumbnails TH3G2.jpg  

  3. #3
    Mustafa Umut Sarac's Avatar
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    from paris manuscript
    Attached Thumbnails Attached Thumbnails msf18v19r.jpg  

  4. #4

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    There are people who do this who research fluid dynamics. Not with the hologram necessarily, but imaging turbulent flow. There are various techniques. Laser velocimetry is one of them. There's a material that you can disperse in the water to help reflect your laser light too called Kalliroscope.

  5. #5
    Mustafa Umut Sarac's Avatar
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    If holographic plate is transparent , it is better to put it between first laser light and the kalliroscope reflected fluid.
    Is holographic plate transparent ?

    Umut

  6. #6
    Mustafa Umut Sarac's Avatar
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    How can I prevent vibration ? What is the hologram exposure time ?

  7. #7
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    HPIV is difficult to do well [expensive], but impressive when it works.
    not many people would use film technology for HPIV these days,
    might need esoteric film speeds...

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

  8. #8
    Nicholas Lindan's Avatar
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    Pooh sticks!

    [for the culturally disadvantaged^H^H^H^H^H^Hdifferently advantaged http://en.wikipedia.org/wiki/Poohsticks]
    DARKROOM AUTOMATION
    f-Stop Timers - Enlarging Meters
    http://www.darkroomautomation.com/da-main.htm

  9. #9
    holmburgers's Avatar
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    Umut, what an awesome idea!

    A holograph plate is transparent and they can be sensitive to green light. But you have hit upon the challenge, exposure time and vibration. I'm no expert, but I know that exposures can be minutes long and that keeping vibrations to a minimum is completely necessary. That's why a lot of simple holograph "cameras" are constructed in sand boxes, which reduce vibrations. But perhaps with a high powered laser it could be done.

    But the idea of having such a hologram is really intriguing; très magnifique idée!
    If you are the big tree, we are the small axe

  10. #10
    holmburgers's Avatar
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    Have you seen Étienne-Jules Marey's smoke photographs?
    If you are the big tree, we are the small axe

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