Tech History, 1910

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What happened during these years?

Chemotherapy - 1910

First Musical Radio Broadcast - 1910
Inventor and radio pioneer Lee de Forest transmitted the first live opera performance.

Neon Lights - 1910
Georges Claude was the first to apply an electrical discharge to a sealed tube of neon gas (circa 1902) to create a lamp. He displayed the first neon lamp
to the public in Paris, on December 11, 1910.

Electric Car Starter - 1911
Charles Kettering - The self starting ignition (no more hand cranking) was first installed in a Cadillac on February 17, 1911

Ozone Layer - 1913
Charles Fabry - French physicist who discovered
in the upper atmosphere the ozone layer that acts
as a screen protecting life

Sonar - 1915
Paul Langévin invented the first sonar type device for detecting submarines "echo location to detect submarines" using the piezoelectric properties of the quartz.

General Theory of Relativity - 1916
Albert Einstein

Shortwave Radio - 1919
Guglielmo Marconi

Proton Identified - 1920
Ernest Rutherford - Identified Proton as principal constituent of nucleus.
Carries unit of positive electrical charge
Mass is 2000 times that of electron

Hair Dryer - 1920
In 1920, the first true hair dryer came on the market, but it was extremely large and heavy, and frequently overheated. Handles were often made of wood

Modern Assembly Line - 1913

At the time of the industrial boom, during the early 1900's, machine use was in
great demand! From the discovery of electricity, to the use of steam powered
engines and discovery of flight - all added fuel to the fire! However, the true
start of the Modern Assembly Line formed within the mind of Henry Ford. Cars
were just finally beginning to catch on in the United States and were beginning
to come in to great demand. Ford had found it hard to find good, reliable labor,
and to be able to pay them the amount of money he earned. (before the first
assembly line was invented, the method of hiring 6 or 7 skilled workmen to
build one car together was what they did). However, Ford had a better idea.
It would be cheaper, quicker, and less hassle to hire about 60 people all with
special jobs. These workmen were unskilled, paid much less, and very easy to
replace if something came up. The idea was one would put the tire on the axle,
another would screw on the bolts, one would screw in a headlight, and another
would attach the lens. With these unskilled jobs and cheap labor, producing
cars was faster than ever! So thus was born the modern assembly line. Today,
most everything produced is made on a line - toys, cars, planes, even CD
factories have assembly lines; they have people who put the CD's in their
cases. Where would we be without the Modern Assembly Line? Probably far
behind with what we have now.

To Learn More ... Check out these References!
Invent.org
http://inventors.about.com/library/inventors/blsonar.htm
The Line Starts Here

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