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The gallery patrons sidestepped thoughtfully through its many nicely decorated rooms, into the darkened Arty Arc exhibit.
After the many hushed, but audible, interpretations of the darkness died down, a soft yet commanding voice instructed to group to continue staring straight ahead.
A blinding
flash of light lit up the room! So blinding that only the cries of those taken by the surprise gave any indication.
Through the murmurs of helplessness, came a sudden exclamation: It's beautiful! On queue the rest of the gallery stopped clutching their eyes and blinked in amazement. The splotchy blob in their vision faded enough to reveal the outline of a large ship.
As room chuckled at the humorous word-play, one critic inquired into how such a spectacular arc was created, "I must see the technology to believe it!" But the artist was stumped, and confessed that it wasn't really possible.
Is it starting to rain.
http://www.csgnetwork.com/cubitscnv.html
[2 fries shy of a happy meal, Sep 12 2006]
Lilac Chaser
http://www.michaelb...acChaser/index.html
PoV dot moving around the screen. [st3f, Sep 13 2006]
Big Spanish Castle
http://www.johnsado..._spanish_castle.php
PoV illusion separating hue and brightness information. [st3f, Sep 13 2006]
[link]
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Might it be created by a suitably trained arc welder? |
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It could be on an arch on an ark moored at the arctic, to conmemmorate the loss of the arcane ice. |
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If the afterimage is in the shape of a ship, then the flash must be in the shape of a ship. |
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But I'm afraid you'll be hearing from my lawyers about the damage to my retina! |
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Despite the flowery (floury?) text, no
obvious idea emerges from the gloom. If
you have an idea, please post it. |
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Presenting images via arc flash? Potential applications: advertising, cheating on exams, a halfbakery post? |
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Despite the last paragraph, this is feasible. Turn on any incandescent bulb, staring at the filament. Close your eyes, and you should see a pretty good impression of the filament. You can shape the filament any way you like. |
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If you have an arc welding torch you could make an arc behind a stencil of your object and leave a lasting impression on people's retnas. Or you could quickly weld out the shape...or shape a MIG wire into what you desire and make sure it all arcs simultaneously... |
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//...cheating on exams...//it's worth it for that nugget alone - or for spys to store secret information - simply burn it into the retina by wiggling a torch around in a darkened room. |
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"Good Lord! It's a persistence of vision
illusion of a boat!" |
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I've tried (but failed) to find the black
witch/white witch image that I've seen
used to illustrate the principle. Here are a
couple of links of persistence of vision
illusions and colour information.
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