Edwin Hall - Revision history

Ysm1152 at 01:20, 1 December 2015

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	Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending "Gorhma Seminary" for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877.		Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending "Gorhma Seminary" for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877.

	After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, "I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings." While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. He was trying to find an answer to the question posed by Maxwell as to whether the resistance of a coil excited by a current was affected by the presence of a magnet ~~when he observed this effect~~. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.		After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, "I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings." While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. He was trying to find an answer to the question posed by Maxwell as to whether the resistance of a coil excited by a current was affected by the presence of a magnet. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.

	==Scientific Contribution==		==Scientific Contribution==

Ysm1152: /* Personal Background */

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Personal Background

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	Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending "Gorhma Seminary" for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877.		Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending "Gorhma Seminary" for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877.

	After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, "I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings."While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.		After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, "I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings." While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. He was trying to find an answer to the question posed by Maxwell as to whether the resistance of a coil excited by a current was affected by the presence of a magnet when he observed this effect. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.

	==Scientific Contribution==		==Scientific Contribution==

Ysm1152: /* Personal Background */

2015-11-30T03:54:36Z

Personal Background

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	Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending "Gorhma Seminary" for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877.		Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending "Gorhma Seminary" for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877.

	After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, "I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings."While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.		After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, "I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings."While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.

Ysm1152 at 03:51, 30 November 2015

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	http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html		http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html

			http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/hall.html

	==References==		==References==

Ysm1152: /* Scientific Contribution */

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Scientific Contribution

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	==Scientific Contribution==		==Scientific Contribution==

	[[File:hall.gif\|~~200px~~\|thumb\|right\|Hall Effect]]		[[File:hall.gif\|400px\|thumb\|right\|Hall Effect]]

	===Hall Effect===		===Hall Effect===

Ysm1152 at 03:48, 30 November 2015

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	==Scientific Contribution==		==Scientific Contribution==

			[[File:hall.gif\|200px\|thumb\|right\|Hall Effect]]

	===Hall Effect===		===Hall Effect===

Ysm1152: /* Industrial Contribution */

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Industrial Contribution

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	==Industrial Contribution==		==Industrial Contribution==
			[[File:hall sensor.jpg\|180px\|thumb\|right\|Hall Sensor]]
			[[File:Hall_sensor.gif\|180px\|thumb\|right\|A wheel containing two magnets passing by a Hall effect sensor]]

	===Hall Effect Sensor===		===Hall Effect Sensor===

	====What is the Hall Effect Sensor?====		====What is the Hall Effect Sensor?====

	~~[[File:hall sensor.jpg\|180px\|thumb\|right\|Hall Sensor]]~~

	A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.		A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.
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	====The usage of the Hall Sensor====		====The usage of the Hall Sensor====

	~~[[File:Hall_sensor.gif\|180px\|thumb\|right\|A wheel containing two magnets passing by a Hall effect sensor]]~~

	Sensing the continuous current		Sensing the continuous current
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	Detecting the polarity of the current		Detecting the polarity of the current
	Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet		Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet





	== See also ==		== See also ==

Ysm1152: /* References */

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References

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	==References==		==References==

			http://www.britannica.com/science/Hall-effect#ref273169

			http://www.nndb.com/people/130/000099830/

			https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/

	[[Category:Notable Scientists]]		[[Category:Notable Scientists]]

Ysm1152: /* External links */

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External links

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	===External links===		===External links===

	~~Internet resources on this topic~~		http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf

			http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html

			http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html

	==References==		==References==

Ysm1152: /* Further reading */

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	Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938		Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938
	~~http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf~~

	~~http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html~~

	===External links===		===External links===