Answers

2014-07-27T15:40:07+05:30
Yes, its through Braille which was found out by a  scientist named Braille. ( i think it is.)
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2014-07-27T15:40:08+05:30

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Braille script contains specially designed uplifted dots of letters, sentences, words etc., which they can feel with their fingers & perceive it.
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