“Harvard researchers … [have] crafted reprogrammable braille that could eliminate the need for unique pages without the bulk of a display. The concept is straightforward. The team compressed a thin, curved elastic shell using forces on each end, and then made indents with a basic stylus (similar to how you print a conventional braille book). Once you remove the compression, the shell ‘remembers’ the indents. You can erase them just by stretching the shell. … There’s no lattice holding it up, and it works with everything from conventional paper to super-thin graphene.”
Article source here:Arts Journal
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