
Category: futurism – Page 650

Telecommunications bit rates 1798–2120
This graph shows the progress in telecommunications bit rates over the last two centuries, and a future extrapolation to the 22nd century.
A primitive form of telecommunications emerged in the late 18th century, when French inventor Claude Chappe demonstrated a practical semaphore system that delivered messages between Paris and Lille. Known as the optical telegraph, it had a transmission rate of two to three symbols (196 different types) each minute, or about 0.4 b/s.
The electrical telegraph, popularised in the 1840s, used a coding system developed by American inventor Samuel Morse, which encoded text characters as sequences of two different signal durations, called dots and dashes. It achieved a rate of approximately 100 b/s.




Tesla gets all its Supercharger cables stolen at brand new station
Tesla was the victim of a theft that resulted in having to shut down a brand new Supercharger station, as all the cables on the eight stalls were cut off.
The automaker is currently working to triple the size of its Supercharger network over the next two years.
It is currently growing at a record pace.



