Thomas Edison's successes and failures
Although, Thomas Edison is well known for his numerous inventions such as the light bulb. Within his repertoire of designs, some received less sensationalism. The Electrographic Vote-recorder was an invention patented by Thomas Edison. At age twenty-two, Thomas Edison started his career developing methods for the U.S. Congress. As a means of recording votes in a more timely fashion than the time-honored voice vote system, Thomas Edison developed the electrographic vote recorder. According to Science (howstuffworks.com), the vote-recorder was a voting device connected to the operator’s desk. Embedded in metal the name of the legislators were accompanied by one column representing "yes" and another representing "no." As Legislators moved a switch on the device, this would point to either "yes" or "no," sending an electric current to the instrument at the clerk's desk. At the end of each submitted vote, the administrator would place a piece of paper treated with chemicals on top of the metal type and run a metal roller over it. The current would cause the chemicals in the paper to dissolve on the side for the recorded vote. Wheels kept track of the total votes and registered the results. At the time, Congress was not interested in devices that increased the speed of voting. Consequently, the rejection of Edison's vote-recorder classifies it as one of Thomas Edison failures or less famous inventions.
Elidomi
Thomas Edison Laboratories - Voice Recording
One great invention by Thomas Edison is the phonograph which records your voice and it plays it back. When speaking into the receiver the sound vibration of the voice would cause a needle to create indentations on a drum wrapped with tin foil. The first recorded message was of Thomas Edison speaking "Mary had a little lamb". He showed it to others and from that he produced other amazing things. Like inventing things that help people play music from their homes.
Emelyn
The Black Maria
The Black Maria was Thomas Edison’s movie production studio. Built in 1893, it is known as the world’s first movie production studio. Films were shot using the kinematograph, which was the most state if the art, stop-and-go, filming device of its time. The Black Maria had a huge window on its ceiling in order to let sunlight into the studio because the films in this time period required an immense amount of light in order to be filmed properly. Due to the times, only silent films were filmed, but this studio was still revolutionary in the making of the modern world's entertainment.
Fernando
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Thomas Edison constructed the first movie studio in West Orange, New Jersey. This studio or Kinetographic Theater, as it was formally called, was made out of wood, tar paper, and a roof that opened up to the sun. It was also built on a turntable to allow movement towards sunlight during the course of the day. This studio was coined the Black Maria because its eccentric appearance resembled a police wagon. The Black Maria was a venue in which many short films or motion pictures were recorded. Blacksmith Scene, Fred Ott’s Sneeze, and Sioux Ghost Dance were a few of these films. Later, in 1903, the Black Maria was torn down after Edison built a glass-enclosed rooftop studio in New York City. A replica constructed in 1954, remains in Thomas Edison’s National Historical Park.
Anette
I = I (R)
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| The experimental data was collected by Aneta, Anette, Ashlee, Jocelyn, Julia, Lanyse, and Mitchelle
In this lab, students measure current generated by a 1.5V battery in a simple circuit with various resistors. The horizontal axis shows resistance [ohm] and the vertical one shows current [milli-amp]. The colorful dots represent measurements and the green line shows the theoretical line of an equation I = V / R, or, using the math notation, y = 1.5 / x. You can see that the measurements fit the theoretical line perfectly well (small error bars are not visible here).
GOOD JOB! |
Kirchhoff Was Right!
- Any conclusions after today's lab exercise?
- Yes, yeah... Kirchhoff was right!
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