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Carpal Tunnel
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Carpal Tunnel
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swieber writes:
The paper was chemically treated so that the original could be "photocopied" with sunlight, and the copy came out blue.
Still another amazing fact reported on WAWAD, your local fast-fact station!
Now that's a process of heliophotocopying I'd like to see in action!
WW
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Carpal Tunnel
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Carpal Tunnel
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And have you noticed just how many of these seem to diverge into food threads?
TEd
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Carpal Tunnel
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Carpal Tunnel
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Re:a process of heliophotocopying I'd like to see
You can! its not hard to by "sun print" paper... i have some, my neices and nephews thought it was great.. they put down flowers and ferns, on the paper, covered with glass, exposed to the sun, and 'finished' by rinsing with cool water.. I got them in an educational supply store.. i can't remember how much they cost.. (but i didn't balk, and i am so cheap!)
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Joined: Sep 2001
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Carpal Tunnel
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Carpal Tunnel
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of troy,
So what did the finished products look like? The flowers and ferns and all?
Curious,
WW
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Carpal Tunnel
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Carpal Tunnel
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There are other things in nature that are photosensitive. Cherry wood is one of them. I have to be very careful not to expose my fresh-cut wood to direct sunlight because it begins to change from a pinkish color to a reddish brown very quickly. I just finished the bed for Sasha and took the whole thing outside and exposed it to the sun so all of it would have pretty close to the same color. I even turned it around two or three times to try to even up the exposure prior to putting the tung oil finish on it.
Cherry only gets better with long exposure to light, but you can absolutely ruin a piece by, for example, leaving it out in direct sunlight with a tool sitting on a flat surface. The shadow under the tool will always be a different color from the rest unless you sand down to raw wood. And sometimes that amount of sanding will be detrimental to the flatness of say a table top.
TEd
TEd
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Carpal Tunnel
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Carpal Tunnel
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some were nice, some not as well composed.. the 'shadow' of the ferns and flowere were white to pale blue (lighter even then robin eggs blue) where there was no shadow was a dark, not navy but a dark royal blue.. and some flowers that look pretty don't have good shapes.. ferns have beautiful shape.. roses don't. but try telling that to an 8 year old.. they know roser are prettier!
the brighter the sun light to develop, the darker the blue, the quicker composed the paler the background... since my yard has big oaks, and the sun is dappled, the paper didn't always get to be a dark blue.. (the kids were in a hurry too, it takes about 15 to 20 minutes exposure.. and they wanted them NOW!
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