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Home > Dictionary of Science Quotations > Scientist Names Index H > Otto Hahn Quotes

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Otto Hahn
(8 Mar 1879 - 28 Jul 1968)

German physical chemist.


Science Quotes by Otto Hahn (1 quote)

As chemists, we must rename [our] scheme and insert the symbols Ba, La, Ce in place of Ra, Ac, Th. As nuclear chemists closely associated with physics, we cannot yet convince ourselves to make this leap, which contradicts all previous experience in nuclear physics.
Co-author with Fritz Strassmann, German chemist (1902-80)
— Otto Hahn
'(άber den nachweis und das Verhalten der bei der Bestrahlung des Urans mittels Neutronen entstehenden Erdalkallmetalle', Die Naturwissenschaften, 1939, 27, 11-15. Trans. J. Heilbron and Robert W. Seidel, Lawrence and his Laboratory: A History of the Lawrence Berkeley Laboratory (1989), Vol. 1, 436-7.
Science quotes on:  |  All (4107)  |  Author (168)  |  Chemist (156)  |  Contradict (41)  |  Convince (41)  |  Experience (470)  |  German (36)  |  Leap (53)  |  Must (1526)  |  Nuclear (107)  |  Nuclear Physics (5)  |  Ourselves (245)  |  Physic (516)  |  Physics (533)  |  Scheme (57)  |  Symbol (94)



Quotes by others about Otto Hahn (1)

O. Hahn and F. Strassmann have discovered a new type of nuclear reaction, the splitting into two smaller nuclei of the nuclei of uranium and thorium under neutron bombardment. Thus they demonstrated the production of nuclei of barium, lanthanum, strontium, yttrium, and, more recently, of xenon and caesium. It can be shown by simple considerations that this type of nuclear reaction may be described in an essentially classical way like the fission of a liquid drop, and that the fission products must fly apart with kinetic energies of the order of hundred million electron-volts each.
'Products of the Fission of the Urarium Nucleus', Nature (1939), 143, 471.
Science quotes on:  |  Barium (4)  |  Bombardment (3)  |  Classical (46)  |  Consideration (139)  |  Demonstration (114)  |  Discover (553)  |  Drop (76)  |  Electron (95)  |  Fission (10)  |  Fly (146)  |  Hundred (228)  |  Kinetic (12)  |  Kinetic Energy (3)  |  Lanthanum (2)  |  Liquid (50)  |  More (2559)  |  Must (1526)  |  Neutron (21)  |  New (1217)  |  Nuclear (107)  |  Nuclear Reaction (2)  |  Nucleus (51)  |  Order (632)  |  Product (160)  |  Production (183)  |  Reaction (104)  |  Simple (406)  |  Strontium (2)  |  Thorium (5)  |  Two (937)  |  Type (167)  |  Uranium (20)  |  Way (1216)  |  Xenon (5)  |  Yttrium (3)


See also:
  • 8 Mar - short biography, births, deaths and events on date of Hahn's birth.
  • Otto Hahn: Achievement and Responsibility, by Klaus Hoffmann. - book suggestion.
  • Booklist for Otto Hahn.

Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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