communication

Chester Carlson and Xerography

Chester Carlson and Xerography

On September 19, 1968, American physicist, inventor, and patent attorney Chester F. Carlson passed away. He is best known for having invented the process of electrophotography, which produced a dry copy rather than a wet copy, as was produced by the mimeograph process. Carlson’s process was subsequently renamed xerography, a…
Do you speak ASCII?

Do you speak ASCII?

On June 17, 1963, the American Standard Code for Information Interchange Code, or short better known as ASCII code was published as ASA X3.4-1963 by the American National Standards Institute. ASCII codes represent text in computers, communications equipment, and other devices that use text. Most modern character-encoding schemes are based…
Oliver Lodge and the Coherer

Oliver Lodge and the Coherer

On June 12, 1851, British physicist Sir Oliver Joseph Lodge was born. Lodge was involved in the development of, and holder of key patents for, radio. He identified electromagnetic radiation independent of Hertz’ proof and at his 1894 Royal Institution lectures, Lodge demonstrated an early radio wave detector he named…
Louis Braille and the Braille System

Louis Braille and the Braille System

On January 4, 1809, French educator Louis Braille was born. He is best known for being the inventor of a system of reading and writing for use by the blind or visually impaired. His system remains known worldwide simply as braille. Access to communication in the widest sense is access to knowledge, and that is vitally…
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