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Mathematics for the blind

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brailleLouis Braille, the inventor of the reading and writing system for the blind, was born exactly 200 years ago. I listened to an inspiring BBC podcast about him this morning. His genius was such that the system is used today unchanged, and allows the blind to read at some 120 words per minute. Braille invented his system at the age of 15, and died by the age of 43 of tuberculosis. Continue reading

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