Braille
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Braille is a tactile writing system used by blind or visually impaired people. It can be read either on embossed paper or by using refreshable braille displays that connect to computers and smartphone
Reading Braille
Accessibility Braille dashboard in elevator
The Braille code ⠏⠗⠑⠍⠊⠑⠗ where the word premier, French for "first", can be read
Silver wedding bands with names Henri(que) and Tita written in braille
Night writing
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Night writing is the name given to a form of tactile writing invented by Charles Barbier de la Serre. It is one of a dozen forms of alternative writing presented in a book published in 1815: Essai sur
Braille
…as a result of a childhood accident. In 1824, at the age of fifteen, he developed the braille code based on the French alphabet as an improvement on night writing. He published his system, which subsequently included musical notation, in 1829. The second revision, published in 1837, was the first binary form of…
Sonography