What does a diagram sound like? What does the shape of a sound feel like? At first sight, listening to diagrams and feeling sounds might sound like nonsense, but for people who are visually impaired it is a practical issue. Even if you can’t see them, you can still listen to words, after all. Spoken books were originally intended for partially-sighted people, before we all realised how useful they were. Screen readers similarly read out the words on a computer screen making the web and other programs accessible. Blind people can also use touch to read, which is essentially all Braille is, replacing letters with raised patterns you can feel. Read More