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HISTORY OF ELECTRICITY KELOMPOK 5 Aris Tri Laksono Helmi Ruslan Fadillah Nurrohim Fajar Kurnianto SMK Negeri 34 Jakarta
Influential people in the history of electricity �Henry Cavendish �Michael Faraday �James Watt �Georg Ohm �Alessandro Volta �Andre-Marie Amphere �Thomas Alva Edison
Henry Cavendish � Henry Cavendish FRS (10 October 1731 – 24 February 1810) British natural philosopher, scientist, and an important experimental and theoretical chemist and physicist. Cavendish is noted for his discovery of hydrogen or what he called "inflammable air".  He described the density of inflammable air, which formed water on combustion, in a 1766 paper "On Factitious Airs". Antoine Lavoisier later reproduced Cavendish's experiment and gave the element its name. � Cavendish was distinguished for great accuracy and precision in researches into the composition of atmospheric air, the properties of different gases, the synthesis of water, the law governing electrical attraction and repulsion, a mechanical theory of heat, and calculations of the density (and hence the weight) of the Earth. His experiment to weigh the Earth has come to be known as the Cavendish experiment.
Michael Faraday was the greatest scientist who contributed to the discovery of electricity. Although at that time, many scientists who are also racing to discover electricity and arguably only a matter of time, electricity will be found, and electricity generators will be created, but the discovery of Faraday makes realization of the availability of electricity to be faster. Faraday was born from a poor family, his father, who just a blacksmith, did not have enough money to send their children to complete. Faraday unyielding youth, learned many things by way of self-taught, read many books, many follow the scientific lectures made him a scientist who is able to produce a variety of important discoveries, scientists are no less than other, more fortunate, because it can take up to a formal school college level tinggi. Faraday Born in Newington, England on 22 September 1791, Born into a poor family, did not make it up, and tried diligently, align themselves with the children of the family can afford. Faraday died on August 25, 1867 in the city of London, and is buried in Highgate Cemetery. Namanya immortalized as the name of the unit of electrical capacitance, which is "Farad"
James watt James Watt (born in Greenock, Scotland, January 19, 1736 - died in Birmingham, England, August 19, 1819 at the age of 83 years) was a great engineer from Scotland, United Kingdom. At first he was interested in steam engines due attention Newcome steam engine made less efficient. Then he continued to do some experiments and research. He successfully created the first efficient steam engine. Apparently the steam engine is one of the forces that drove the Industrial Revolution, particularly in Britain and Europe in general. To appreciate his service, his last name is used as the name of the unit of watts of power, such as engine power and electric power.
Georg Ohm Georg Simon Ohm was a German physicist born in Erlangen, Bavaria, on March 16, 1787. As a high school teacher, Ohm started his research with the recently invented electrochemical cell, invented by Italian Count Alessandro Volta. Using equipment of his own creation, Ohm determined that the current that flows through a wire is proportional to its cross sectional area and inversely proportional to its length or Ohm's law. Using the results of his experiments, Georg Simon Ohm was able to define the fundamental relationship between voltage, current, and resistance. These fundamental relationships are of such great importance, that they represent the true beginning of electrical circuit analysis.
Alessandro Volta �Alessandro Giuseppe Antonio Anastasio Volta born in Como, Italia, and taught in public schools there. In 1774, he became profesor of physics in the royal schools in como. �Volta was an Italian physicist. He is know for developing the battery in 1800. Volta succeeded in creating a voltaic battery (Volta Pile). For his services, the unit of electrical potential difference is called the. Volt.
Andre-Marie Amphere born in Lyon, France, January 20, 1775. He never attended school. Education obtained in the home of her father, who was a wealthy silk merchant and government officials in favor of the king. At the age of 12 years, Ampere has mastered all the mathematics known at that time. No wonder if he was an intelligent teenager and knowledgeable
Thomas Alva Edison In 1870 he found a better telegraph machine. The machines can print the messages on top of a long paper tape. The money generated from the findings was sufficient to establish his own company. In 1874 he moved to Menlo Park, New Jersey. There he made a major scientific workshop and the first in the world. After that he did a lot of important discoveries. In 1877 he found Gramofon. In the year 1879 he had found the electric light then he also found a projector for small movies. In 1882 he installed electric lights in the streets and houses as far as one kilometer in the city of New York. This is the first time in the world to use electric lights on the streets. In 1890, he founded the company General Electric. Edison is considered as one of the most prolific creators of his time, holding a record 1, 093 patents in his name. He also helped in the defense of the U. S. government. Some of the research include: detecting aircraft, destroying periscope with machine guns, submarine detection, stopping torpedo nets, increasing the power of the torpedo, ship camouflage, and many more. He died at the age of 84, on the anniversary of his discovery of the famous, modern light bulb
conclusion �Great scientists are people - influential people in the world, where they work, we can enjoy up to date, therefore we must respect their services in a way to study hard and to create new things that can be used by all human beings as they are already creating electricity that we can use today.
� In 1928 he received the award of a special medal from the U. S. Congress. � The word virtue distinct from Thomas Alva Edison is: � "Genius is 1% inspiration and 99% perspiration. Nothing can replace hard work. ' � "Luck is something that happens when opportunity meets with preparation. ' � "I am not discouraged, because every wrong attempt is another step forward. '
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