World Braille Day 2021, 4 January

 Using the Braille Science Code - Supporting Blind and partially sighted people.

The Nemeth Braille Code for Mathematics is a Braille code for encoding mathematical and scientific notation linearly using standard six-dot Braille cells for tactile reading by the visually impaired. The code was developed by Abraham Nemeth. The Nemeth Code was first written up in 1952.