Physics
- January–February – Discovery of nuclear fission is announced independently by Lise Meitner and Otto Hahn.
- August 2 – The Einstein–Szilárd letter is signed, advising President of the United States Franklin D. Roosevelt of the potential use of uranium to construct an atomic bomb. It is delivered on October 11.
- October 21 – First meeting of the Advisory Committee on Uranium under Lyman James Briggs, authorised by President Roosevelt to oversee neutron experiments.
Read more about this topic: 1939 In Science
Famous quotes containing the word physics:
“The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces upon us the manufacture of the hydrogen bomb. We do not choose our problems, we do not choose our products; we are pushed, we are forced—by what? By a system which has no purpose and goal transcending it, and which makes man its appendix.”
—Erich Fromm (1900–1980)
“It is hardly to be believed how spiritual reflections when mixed with a little physics can hold people’s attention and give them a livelier idea of God than do the often ill-applied examples of his wrath.”
—G.C. (Georg Christoph)
“The labor we delight in physics pain.”
—William Shakespeare (1564–1616)