Robert A'

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Robert A. Millikan
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The Life of Robert A. Millikan

• Born on March 22, 1868 in Morrison, Illinois
• His dad, Silas Franklin, was a reverend and his
  mothers name was Mary Jane Andrews
• Grandparents were pioneers before 1750
• Court reporter then went to Oberlin College in
  Ohio in 1886
• Graduated and taught post elementary school
  physics
• Appointed Fellow in Physics at Colombia
  University in 1893
• Received PhD in 1895 for research on the
  polarization of light by incandescent surfaces
  using molten gold and silver at the U.S. Mint
• Became assistant of Ryerson Lab at the University
  of Chicago, became professor there from
  1910-1921, and simplified teaching physics

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The Discoveries of Millikan

• Based on the fields of electricity, optics, and
  molecular physics
• Found the amount of charge carried by an electron
  using the elegant falling drop method in 1909
• Created 1st direct photoelectric determination of
  Plancks constant, h, in 1912-1915
• Spectrum between ultraviolet and x-radiation
  sparks

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The Oil Drop Method

• Helped discover the mass of an electron as well
  as the charge

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The awards and achievements of Milikan

• Comstock prize
• Edison Medal of American Institute if Electrical
  Engineers
• Hughs Medal of Royal Society of Great Britain
• Nobel Prize for Physics
• Chinese Order of Jade
• Honorary Doctor Degrees from 25 universities
• President of American Association for the
  Advancement of Science

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Summary

• Robert A.
• Milikan
• Year of Atomic Discovery 1909
• Atomic Discovery Discovered mass of electron as
  well as its charge by using the Falling Drop
  Method