One way to make books available to the blind is to have readers with crisp, clear voices record them phonographically. At the disposal of the country's blind are some 5,000 books translated into Braille. But whether he listens to a recording or reads Braille, the blind person must confine himself to those books which have been selected for him. Last week at Northwestern University a young graduate student in psychology named Emil Ranseen demonstrated an invention by which a sightless reader patient enough to learn a touch code may read any book he...
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