Great%20Scientists

1
Great Scientists

• Insert Name

2
Who was it?

• Born in South Dakota, 1901
• Made vital contributions to atomic bomb
• Invented cyclotron that accelerated particles to
  high velocity without high voltage, used to make
  new elements
• Developed e/m ratio of electron
• Liked Lawrys seasoned salt

3
Ernest Lawrence

• 1901-1958
• Invented cyclotron, 1929
• Accelerated particles to bombard with atoms
• Made new elements
• Made anti-matter to study
• Won Nobel prize in physics, 1939

4
Who was it?

• Born in Copenhagen in 1885
• Researched structure of the atom
• First to postulate that electrons travel around
  nucleus of atom
• Predicted splitting of uranium atoms
• Gave lectures, never boring

5
Niels Bohr

• 1885-1962
• Known for the Bohr model of the atom
• Electrons travel around nucleus in restricted
  orbits
• Won Nobel prize in physics in 1922

6
Who was it?

• Born in Württemberg, Germany, 1879
• Postulated light travels in individual photons,
  1905
• Wrote special theory of relativity 1905
• Wrote general theory of relativity 1916
• E mc2

7
Albert Einstein

• 1879-1955
• Postulated photons travel in discreet energy
  packets (individual photons)
• Theories of special and general relativity
• Nobel prize in physics, 1921

8
Who was it?

• Born 1852 in Paris
• Discovered natural radiation in uranium in 1896
• Unit of radiation named after
• 1 disintigration/second 1 Bq
• Oh Henry!

9
Henri Becquerel

• 1852-1908
• Known for his discovery of natural radiation in
  uranium
• Shared Nobel Prize with the Curies in 1903

10
Who was it?

• Born in Rome, 1901
• Contributed to early theory of beta decay and
  neutrino
• Demonstrated nuclear transformation with neutrons
  in elements
• Led experiment that performed first controlled
  nuclear reaction
• Very fair to me

11
Enrico Fermi

• 1901-1954
• Discovered neutrino and neutron activation
• Work led to fission and controlled nuclear
  reaction
• Nobel prize physics, 1938

12
Who was it?

• Born in Nelson, New Zealand, 1871
• Discovered alpha and beta particles in 1898
• Devised method of counting alpha particles with H
  Geiger
• Investigations of alpha scattering in 1910 led to
  the discovery of the nucleus
• Knighted in 1914

13
Sir Ernest Rutherford

• 1871-1937
• Discovered alpha and beta particles
• Discovered nucleus in 1910
• Won Nobel prize in chemistry, 1908

14
Who was it?

• Born Frankfurt-on-Main, Germany, 1879
• Discovered radiothorium, radioactinum, and
  mesothorium
• Developed methods of separating radioactive
  particles
• Discovered fission by bombarding uranium and
  thorium with neutrons, 1938 with Strassman
• Lets all give him a hand

15
Otto Hahn

• 1879-1968
• Discovered the process of fission by bombarding
  uranium with neutrons (including the chain
  reaction)
• Won Nobel prize in chemistry in 1944

16
Who was it?

• Born in Warsaw, 1867
• Discovered radium and polonium and developed
  means to separate it
• Refused to patent work for money
• Developed unit of radioactivity
• 1 Ci 37,000,000,000 disintigrations/sec
• There was no cure for her radiation

17
Marie Curie

• 1867-1934
• Known for her discovering and separating radium
  and polonium
• Shared Nobel prize in physics, 1903 and full
  prize in chemistry, 1911
• (First to receive two prizes)

18
Who was it?

• Born in 1978
• Isolated protactinium with Otto Hahn in 1917
• Worked with Hahn on behavior of beta rays
• Helped discover fission with Hahn and Strassman
• Meitnerium named after her (elm 109)

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Lise Meitner

• 1878-1968
• Spent much of career working with Otto Hahn
• Helped discover fission with Hahn and Strassman
• Discovered elements with Hahn

20
Who was it?

• Born in Lennep, Germany, 1845
• Worked on thermal conductivity of crystals
• Discovered X-rays
• Unit of radiation named after him for dose (R)
• He had the will to do it

21
William Röentgen

• 1845-1923
• Discovered x-rays in a cathode tube experiment
• Won Nobel prize in physics in 1901