Paul Dirac proposes that the existence of a single magnetic monopole in the universe would suffice to explain the quantization of electrical charge.[7]
November 19 – David Gottlieb introduces his Baffle Ball machine in the United States, the first commercially successful pinball table.[14]
December 14 – British electronics engineer Alan Blumlein of EMI submits a UK patent application for "Improvements in and relating to Sound-transmission, Sound-recording and Sound-reproducing Systems" – binaural or stereophonic sound.
↑ Institute of Medicine (US) Forum on Microbial Threats (2005). "1: The Story of Influenza". In Knobler, S.; Mack, A.; Mahmoud, A.; Lemon, S. (eds.). The Threat of Pandemic Influenza: Are We Ready? Workshop Summary. Washington, D.C.: The National Academies Press. pp.60–61. doi:10.17226/11150. ISBN978-0-309-09504-4. PMID20669448.
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