| Date | Text | |
|---|---|---|
24 Aug 1940
Paul Gottlieb Nipkow |
death Paul Gottlieb Nipkow Died 24 Aug 1940 at age 80 (born 22 Aug 1860). German engineer who discovered television's scanning principle, in which the light intensities of small portions of an image are successively analyzed and transmitted. Nipkow's invented (1884) a rotating disk (Nipkow disk) with one or more spirals of apertures that passed successively across the picture to make a mechanically scanned television system. |
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24 Aug 1940
Howard Florey |
Howard Florey (biochemistry) Howard Florey and a team including Ernst Chain, Arthur Duncan Gardner, Norman Heatley, M. Jennings, J. Orr-Ewing and G. Sanders at the Sir William Dunn School of Pathology, University of Oxford, publish their laboratory results showing the in vivo bactericidal action of penicillin. They have also purified the drug. |
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