George Stephenson invented the first railway bharat agarwal
One of the first electric gates was invented by a Canadian Fred W. Watson in 1881. It was designed to be used for railway systems. The first commercial electric gate systems were hydraulic and designed for reliability and ease of use.
for handling freight and passengers at Menlo Park, N. J.
A fraud. Or, to be fair: an error.Traffic lights were invented in the UK by railway engineer JP Knight (who was neither African nor American) in 1868. They were similar to existing railway signals, so it wasn't that spectacular as inventions go.The modern electric traffic light was invented by Lester Wire (who was American, but not African ... at least not recently; the "Out of Africa" theory says we're all African in ancestry, so let me just call a spade a spade here: he was white) no later than 1912.Garret Morgan, who did meet the "African American" (that is, black) criterion, invented a traffic signal (that was inferior in several ways to existing designs - it was manual, and operated by a crank, and there's no reliable evidence it was ever actually even used) in 1923, but it apparently makes some people feel better to think that the traffic light was invented by a black man. The sad thing about this is that Morgan really was an inventor, and invented a personal safety hood and smoke protector to help firefighters and emergency workers breathe which he personally demonstrated the effectiveness of by rescuing some people while using it - a far more important invention than a hand-cranked traffic signal in an age when automatic electric signals already existed.
George Westinghouse invented the air brake for electric railway cars around the 1880's. He also purchased the patent rights to generators which used alternating currents, as well as patenting transformers that reduced high-voltage power to lower voltage levels. His new system made long-distance transmission more efficient, over Edison's system of direct current which couldn't transmit electricity very far.
werner von siemens
George Stephenson invented the first railway bharat agarwal
One of the first electric gates was invented by a Canadian Fred W. Watson in 1881. It was designed to be used for railway systems. The first commercial electric gate systems were hydraulic and designed for reliability and ease of use.
El, short for "elevated railroad" -- Chicago's is the most famous example.
Gettysburg Electric Railway was created in 1893.
Gettysburg Electric Railway ended in 1916.
Ise Electric Railway was created in 1911.
Ise Electric Railway ended in 1936.
Enoshima Electric Railway was created in 1900.
Toyama Electric Railway was created in 1930.
The population of Odakyu Electric Railway is 2,009.
Ottawa Electric Railway was created in 1891.