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 “Lawry’s” 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
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
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
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
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)

19. 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
Discovered x-rays in a cathode tube experiment
Won Nobel prize in physics in 1901