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Originally Posted by Cyberman tM
Outing my ignorance here, but why is it considered to be a problem to create a braile "display" ?
At the most basic level, isn't all you need basically a huge dot matrix printer that doesn't immediately retract the pins? (And, of course, not have sharp points.)
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I'm afraid I'm as ignorant as you are. I was referring to this quote from the bbc-link:
Quote:
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It uses software-controlled heat to expand paraffin waxes in its screen, turning the material from liquid to solid and in turn controlling which of its 6,000 Braille dots are raised.
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and I've understood it that the software had to heat the paraffin for every page anew.