History
The de Broglie hypothesis, formulated in 1924, predicts that particles should also behave as waves. De Broglie's formula was confirmed three years later for electrons (which have a rest-mass) with the observation of electron diffraction in two independent experiments. At the University of Aberdeen George Paget Thomson passed a beam of electrons through a thin metal film and observed the predicted interference patterns. At Bell Labs Clinton Joseph Davisson and Lester Halbert Germer guided their beam through a crystalline grid. Thomson and Davisson shared the Nobel Prize for Physics in 1937 for their work.
Read more about this topic: Electron Diffraction
Famous quotes containing the word history:
“The basic idea which runs right through modern history and modern liberalism is that the public has got to be marginalized. The general public are viewed as no more than ignorant and meddlesome outsiders, a bewildered herd.”
—Noam Chomsky (b. 1928)
“I believe my ardour for invention springs from his loins. I cant say that the brassiere will ever take as great a place in history as the steamboat, but I did invent it.”
—Caresse Crosby (18921970)
“It is remarkable how closely the history of the apple tree is connected with that of man.”
—Henry David Thoreau (18171862)