Braille- A ray of hope for the blind people, invented 200 years ago and still helping people with visual impairment so that they can read and write. Braille is up for upgrade since a long time and now finally it has got one. Germany’s Bayreuth University recently developed a special speaker system that emits ultrasoundContinue reading “Blind people can now read Braille in air”
Getting through it. TechX 