- 1904 in science
The year 1904 in
science andtechnology involved some significant events, listed below.Astronomy
*
Edward Walter Maunder plots the firstsunspot "butterfly diagram"
* The sixth moon of Jupiter, later called Himalia, discovered atLick Observatory Mathematics
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Henri Poincaré discovers thePoincaré sphere , leading him to formulate thePoincaré conjecture Medicine
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Epinephrine first artificially synthesized byFriedrich Stolz .Physics
*
Vacuum tube invented byJohn Ambrose Fleming
*J. J. Thomson proposes theplum pudding model for theatom .
*Hantaro Nagaoka develops the Saturnian model for the atom.Awards
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Nobel Prize s
** Physics -John William Strutt, 3rd Baron Rayleigh
** Chemistry - SirWilliam Ramsay
** Medicine -Ivan Pavlov Births
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January 26 -Ancel Keys , (d. 2004)nutritionist .
*March 20 -B. F. Skinner (d. 1990), behavioralpsychologist .
*April 22 -Robert Oppenheimer (d. 1967),physicist .
*July 5 -Ernst Mayr (d. 2005),evolutionary biologist .
*August 28 -Secondo Campini (d. 1980), Italian jet pioneer.
*November 11 -J. H. C. Whitehead (d. 1960), Britishmathematician .Deaths
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January 20 -Dmitri Mendeleev (b. 1834),Russia nchemist and inventor of thePeriodic table .
*May 10 -Henry Morton Stanley (b. 1841), explorer,journalist .
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