its a tv, its a small low resolution tv, based upon making the scanlines by making a large spiral of holes in a disk and shining a light behind a little square of it.
the camera and the fv are very similar, on e has a photo detector behind a disk and a lens and that one sends pulses of light/dark, to the other one that flickers a bulb behind a disk making each line of tv glow as the holes scan across.
I can remember using a slide rule at one time, and my dad used them a frequently as a land surveyor. After all, back in the early eighties a slide rule could be more useful than a lot of calculators.
You really tickled my fancy with this one! You refer to truly ancient systems like an abacus, and then you bring up a system like the notched cards which I used in my job in the mid 1980s (before PCs were in the workplace).
I was Arizona's Natural Areas Manager and was frequently required to respond to environmental impact statements and other land management plans regarding hundreds of identified natural areas throughout the state. I spent hours upon hours setting up my "database" of coded cards. The difference in the system I used was that you used an "icepick" tool to sort through the cards multiple times until you got the subset you needed. I think I still have the cards somewhere. It worked quite nicely, was adaptable, accepted additions and changes, and once set up, anyone could use it.
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http://www.deadmedia.org/notes/index-cat.html
and something full of awesome is this mechanical tv kit. (my dad has been building his own for a few years)
http://blog.makezine.com/archive/2008/07/build_your_own_mechanical.html
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Is that a mechanical tv or a mechanical projector? I'm a bit confused by it.
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the camera and the fv are very similar, on e has a photo detector behind a disk and a lens and that one sends pulses of light/dark, to the other one that flickers a bulb behind a disk making each line of tv glow as the holes scan across.
here is a very basic diagram.
http://www.hawestv.com/mtv_page/mtv_page.htm
this page has good info on what the Nipkow disk would look like. and how it works.
http://en.wikipedia.org/wiki/Mechanical_television
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Now though, I wouldn't have a clue.
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I was Arizona's Natural Areas Manager and was frequently required to respond to environmental impact statements and other land management plans regarding hundreds of identified natural areas throughout the state. I spent hours upon hours setting up my "database" of coded cards. The difference in the system I used was that you used an "icepick" tool to sort through the cards multiple times until you got the subset you needed. I think I still have the cards somewhere. It worked quite nicely, was adaptable, accepted additions and changes, and once set up, anyone could use it.
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