7th-1930s+Science,+Technology,+and+Innovation

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Jet Engine

During the 1930's there were many different new inventions created. Jet engines were first created by Hans von Ohain and Sir Frank Whittle. Both of these inventors are recognized as the first operational designer of the jet engine. Hans von Ohain's jet was also the first flown jet in 1939. His partner's jet was not flown unti 1941. Sir Frank Whittle was twenty-two years old when he first thought of using gas to power a turbine engine. During January of the year 1930 Whittle recieved his first patent on the turbojet propulsion. In conclusion, this jet engine design influenced the productivity of aircrafts worldwide.

FM Radio

Edwin Howard Arnstrong invented was born in 1890 in New York City; he was one of the greatest inventors of the 20th century. He invented the FM Radio in 1933, FM stands for Frequency Modulation. It improved the audio signal of radios; it controlled the static caused from other electrical equipment. Superheterodyning and frequency modulation is what Edwin is best known for. He constructed the FM radio station in 1937, the radio signals could be heard 100 miles away. Edwin began electrical engineering in 1913 at Columbia. He went to the Supreme Court many times over a 14 year time period over the patent fight of the FM radio. Lastly, Edwin Armstrong took credit for building the first FM radio.

Polaroid Camera

The first polaroid camera was invented by Edwin Land during the 1930's. He spent 10 years marketing the lenses. His inspiration was his daughter asking him why she couldn't see photos instantly after taking them. The camera was a huge hit, making the company millions of dollars. It would produce 3-1/4 by 4-1/4 print within 60 seconds of taking. He was born in Bridgeport, Connecticut; he also attended the Norwidge Free Academy High School. He was forty years of age when he designed the camera. The name Polaroid came about from the inexpensive filters capable of polarizing light.

Work Cited

Bellis, Mary. "Polaroid Photography - Instant Photography." //About.com//. Photography Schools, 2010. Web. 2010. .

Bellis, Mary. "Jet Engines - Hans Von Ohain and Sir Frank Whittle." //Jet Engines - Hans Von Ohain and Sir Frank Whittle//. Small Jet Engine, 2010. Web. 2010. [|www.webcrawler.com].

Bellis, Mary. "Edwin Howard Armstrong." //About.com//. XM Radio Antennas, 2010. Web. 2010. .