Robert A. Millikan - Revision history

Miglesias6: /* Major Scientific Contributions */

2015-12-04T15:58:52Z

Major Scientific Contributions

← Older revision		Revision as of 11:58, 4 December 2015
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	[[File:oildrop.jpg\|Oil Drop Experiment\|left\|frame]]		[[File:oildrop.jpg\|Oil Drop Experiment\|left\|frame]]

	In 1909, Millikan worked with assistant Harvey Fletcher to create the oil drop experiment.The pair were able to find the charge of electron as well as the smallest unit of an electron charged that can be quantized. In this experiment, oil was sprayed onto a plate with a hole. Droplets of oil fell through the whole into a chamber with electrically charged plates. These plates emitted x-rays that caused the negatively charged oil drops to either fall at a slower rate, stop or rise. By comparing the velocity's of the charged and non-charged drops, Millikan and Fletcher found that all the negatively charged particles had a charged that was multiple of 1.6e-19 coloumbs.		In 1909, Millikan worked with assistant Harvey Fletcher to create the oil drop experiment.The pair were able to find the charge of electron as well as the smallest unit of an electron charged that can be quantized. In this experiment, oil was sprayed onto a plate with a hole. Droplets of oil fell through the whole into a chamber with electrically charged plates. These plates emitted x-rays that caused the negatively charged oil drops to either fall at a slower rate, stop or rise. By comparing the velocity's of the charged and non-charged drops, Millikan and Fletcher found that all the negatively charged particles had a charged that was multiple of 1.6e-19 coloumbs. Millikan won a Nobel Prize in 1923 for his work on this experiment.

	===Photoelectric Effect===		===Photoelectric Effect===

Miglesias6: /* External links */

2015-12-04T15:57:57Z

External links

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	===External links===		===External links===
	~~[http~~://www.~~scientificamerican~~.~~com~~/~~article~~/~~bring-science-home-reaction-time~~/]
			https://www.aip.org/history/gap/Millikan/Millikan.html

			http://uudb.org/articles/robertmillikan.html

	==References==		==References==

Miglesias6: /* References */

2015-12-04T15:56:35Z

References

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	==References==		==References==

	~~This section contains the the references you used while writing this page~~		https://en.wikipedia.org/wiki/Photoelectric_effect

	~~[[Category~~:~~Which Category did you place this in?]]~~		http://www.nobelprize.org/nobel_prizes/physics/laureates/1923/millikan-bio.html

			https://en.wikipedia.org/wiki/Oil_drop_experiment

			https://en.wikipedia.org/wiki/Robert_Andrews_Millikan

Miglesias6: /* Fun Facts */

2015-12-04T15:52:45Z

Fun Facts

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	==Fun Facts==		==Fun Facts==

	~~Be sure to show all steps~~ in ~~your solution~~ and ~~include diagrams whenever possible~~		1. Millikan was also known for his talks about the relationship between science and religion.

			2. During WWII, he had a large role in designing anti-submarine and meteorological devices.

			3. He holds honorary degrees from 25 institutions.

			4. Millikan was a tennis enthusiast.


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	===External links===		===External links===
	[http://www.scientificamerican.com/article/bring-science-home-reaction-time/]		[http://www.scientificamerican.com/article/bring-science-home-reaction-time/]


	==References==		==References==

Miglesias6: /* Photoelectric Effect */

2015-12-04T15:48:13Z

Photoelectric Effect

← Older revision		Revision as of 11:48, 4 December 2015
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	By Maria Iglesias		By Maria Iglesias

	[[File:robertmillikan.jpg\|right]]		[[File:robertmillikan.jpg\|right\|frame]]
	==Biography==		==Biography==

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	===Oil Drop Experiment===		===Oil Drop Experiment===

	[[File:oildrop.jpg\|Oil Drop Experiment\|left]]		[[File:oildrop.jpg\|Oil Drop Experiment\|left\|frame]]

	In 1909, Millikan worked with assistant Harvey Fletcher to create the oil drop experiment.The pair were able to find the charge of electron as well as the smallest unit of an electron charged that can be quantized. In this experiment, oil was sprayed onto a plate with a hole. Droplets of oil fell through the whole into a chamber with electrically charged plates. These plates emitted x-rays that caused the negatively charged oil drops to either fall at a slower rate, stop or rise. By comparing the velocity's of the charged and non-charged drops, Millikan and Fletcher found that all the negatively charged particles had a charged that was multiple of 1.6e-19 coloumbs.		In 1909, Millikan worked with assistant Harvey Fletcher to create the oil drop experiment.The pair were able to find the charge of electron as well as the smallest unit of an electron charged that can be quantized. In this experiment, oil was sprayed onto a plate with a hole. Droplets of oil fell through the whole into a chamber with electrically charged plates. These plates emitted x-rays that caused the negatively charged oil drops to either fall at a slower rate, stop or rise. By comparing the velocity's of the charged and non-charged drops, Millikan and Fletcher found that all the negatively charged particles had a charged that was multiple of 1.6e-19 coloumbs.
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	In 1905, Albert Einstein published describing the particle-like qualities of light known as the photoelectric effect. Millikan did not agree with this idea, since previously light had only been described as a wave. To test this Einstein's theory, he created an experiment in light bulb. The machine he designed was a lightbulb with a wheel inside that had 3 cylinders of metals on it: sodium, lithium and potassium. The wheel rotated inside, a metal would be shaved down by a knife and the cylinder was rotated toward a light using an electromagnet. The results concluded that Einstein was correct.		In 1905, Albert Einstein published describing the particle-like qualities of light known as the photoelectric effect. Millikan did not agree with this idea, since previously light had only been described as a wave. To test this Einstein's theory, he created an experiment in light bulb. The machine he designed was a lightbulb with a wheel inside that had 3 cylinders of metals on it: sodium, lithium and potassium. The wheel rotated inside, a metal would be shaved down by a knife and the cylinder was rotated toward a light using an electromagnet. The results concluded that Einstein was correct.

	[[File:milli.jpg\|right]]		[[File:milli.jpg\|right\|frame\| Photoelectric Effect]]

	==Fun Facts==		==Fun Facts==

Miglesias6: /* Photoelectric Effect */

2015-12-04T15:31:18Z

Photoelectric Effect

← Older revision		Revision as of 11:31, 4 December 2015
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	In 1905, Albert Einstein published describing the particle-like qualities of light known as the photoelectric effect. Millikan did not agree with this idea, since previously light had only been described as a wave. To test this Einstein's theory, he created an experiment in light bulb. The machine he designed was a lightbulb with a wheel inside that had 3 cylinders of metals on it: sodium, lithium and potassium. The wheel rotated inside, a metal would be shaved down by a knife and the cylinder was rotated toward a light using an electromagnet. The results concluded that Einstein was correct.		In 1905, Albert Einstein published describing the particle-like qualities of light known as the photoelectric effect. Millikan did not agree with this idea, since previously light had only been described as a wave. To test this Einstein's theory, he created an experiment in light bulb. The machine he designed was a lightbulb with a wheel inside that had 3 cylinders of metals on it: sodium, lithium and potassium. The wheel rotated inside, a metal would be shaved down by a knife and the cylinder was rotated toward a light using an electromagnet. The results concluded that Einstein was correct.

			[[File:milli.jpg\|right]]

	==Fun Facts==		==Fun Facts==

Miglesias6: /* Photoelectric Effect */

2015-12-04T15:29:58Z

Photoelectric Effect

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	===Photoelectric Effect===		===Photoelectric Effect===

	~~How do we visualize or predict using~~ this ~~topic~~. ~~Consider embedding some vpython code here [https~~:~~//trinket~~.~~io/glowscript/31d0f9ad9e Teach hands-on with GlowScript]~~		In 1905, Albert Einstein published describing the particle-like qualities of light known as the photoelectric effect. Millikan did not agree with this idea, since previously light had only been described as a wave. To test this Einstein's theory, he created an experiment in light bulb. The machine he designed was a lightbulb with a wheel inside that had 3 cylinders of metals on it: sodium, lithium and potassium. The wheel rotated inside, a metal would be shaved down by a knife and the cylinder was rotated toward a light using an electromagnet. The results concluded that Einstein was correct.

	==Fun Facts==		==Fun Facts==

Miglesias6: /* Oil Drop Experiment */

2015-12-04T07:12:52Z

Oil Drop Experiment

← Older revision		Revision as of 03:12, 4 December 2015
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	===Oil Drop Experiment===		===Oil Drop Experiment===

	[[File:oildrop.jpg\|left]]		[[File:oildrop.jpg\|Oil Drop Experiment\|left]]

	In 1909, Millikan worked with assistant Harvey Fletcher to create the oil drop experiment.The pair were able to find the charge of electron as well as the smallest unit of an electron charged that can be quantized. In this experiment, oil was sprayed onto a plate with a hole. Droplets of oil fell through the whole into a chamber with electrically charged plates. These plates emitted x-rays that caused the negatively charged oil drops to either fall at a slower rate, stop or rise. By comparing the velocity's of the charged and non-charged drops, Millikan and Fletcher found that all the negatively charged particles had a charged that was multiple of 1.6e-19 coloumbs.		In 1909, Millikan worked with assistant Harvey Fletcher to create the oil drop experiment.The pair were able to find the charge of electron as well as the smallest unit of an electron charged that can be quantized. In this experiment, oil was sprayed onto a plate with a hole. Droplets of oil fell through the whole into a chamber with electrically charged plates. These plates emitted x-rays that caused the negatively charged oil drops to either fall at a slower rate, stop or rise. By comparing the velocity's of the charged and non-charged drops, Millikan and Fletcher found that all the negatively charged particles had a charged that was multiple of 1.6e-19 coloumbs.

Miglesias6: /* Oil Drop Experiment */

2015-12-04T07:08:14Z

Oil Drop Experiment

← Older revision		Revision as of 03:08, 4 December 2015
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	[[File:oildrop.jpg\|left]]		[[File:oildrop.jpg\|left]]

			In 1909, Millikan worked with assistant Harvey Fletcher to create the oil drop experiment.The pair were able to find the charge of electron as well as the smallest unit of an electron charged that can be quantized. In this experiment, oil was sprayed onto a plate with a hole. Droplets of oil fell through the whole into a chamber with electrically charged plates. These plates emitted x-rays that caused the negatively charged oil drops to either fall at a slower rate, stop or rise. By comparing the velocity's of the charged and non-charged drops, Millikan and Fletcher found that all the negatively charged particles had a charged that was multiple of 1.6e-19 coloumbs.

	===Photoelectric Effect===		===Photoelectric Effect===

Miglesias6: /* Oil Drop Experiment */

2015-12-04T06:22:34Z

Oil Drop Experiment

← Older revision		Revision as of 02:22, 4 December 2015
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	===Oil Drop Experiment===		===Oil Drop Experiment===

			[[File:oildrop.jpg\|left]]

	===Photoelectric Effect===		===Photoelectric Effect===