A Short History of Technology.
Electricity was harnessed in the 1800's. Electricity had been theorized for
thousands of years. It was studied for centuries before Alessandro Volta invented
the first battery in 1800. The battery was called Voltaic piles.
In 1826, the first photograph was taken. This was the beginning of
photography and pictures.
In 1831, the electric generator was invented. Electric generators could
produce direct current (DC) or alternating current (AC).
In 1837, the telegraph was invented. The telegraph was the first
communication devise used to send messages, through wire, with electricity.
Before the telegraph, the mail was the only way to send messages over a long
distance. The telegraph could send messages, over long distances, through wire,
and it would be there instantly. The mail could take days, weeks, or even months
before it got there. The telegraph was used for over forty years before the
telephone was invented.
In 1876, the telephone was invented by Alexander Graham Bell. It was the
first communication devise to transmit voice through electrical wire.
In 1877, the phonograph was invented by Thomas Edison. The phonograph
was one of the first inventions to record sound. The phonograph recorded the
sound on tin foil using vibrations. The ability to record sound electronically,
magnetically on metal wire did come about in the late 1800's, but the phonograph
was alot more popular at the time.
In 1894, the moving picture was invented by Thomas Edison. It was called
the Kinetoscope. This started the beginning of video recording. The recordings
were made on film.
In 1895, radio was invented. It was the first communication devise to send
the electronic signals through the atmosphere using eeewaves instead of sending
the signals through the wire.
In around the 1920's television was achieved. Television had been
researched for several decades prior. Some of the first attempts at television took
place in the late 1890's. A scanning devise was used to attempt to send pictures
from one place to another. The electronic signal was sent through the wire.
In the 1930's German scientists invented a way to record sound
electronically on a plastic tape coated with a certain type of metal that could be
magnetized easily. This is where tape recording began. Before tape