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  1. To Know How The App Works

    To understand how the app works, it helps to have a basic understanding of Braille. You'll be able to catch up by studying How Braille Works. In short, Braille is a primary system made up of a three by 2 matrix, or grid. On printed paper, you use your fingers to read Braille by feeling raised dots positioned on the grid. Every combination of dots in that grid coincides with a letter in the alphabet or punctuation.

    Many inventors contributed to the development of radio, however Guglielmo ...