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30 Nov 1938
![]() DDT |
DDT (biology) DDT's properties as an insecticide are discovered by Paul Müller of Geigy. |
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30 Nov 1938
![]() Kavrayskiy VII projection |
Kavrayskiy VII projection (cartography) Kavrayskiy VII projection devised by Vladimir V. Kavrayskiy. |
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30 Nov 1938
![]() Linus Pauling |
Linus Pauling (chemistry) Linus Pauling publishes The Nature of the Chemical Bond, a compilation of a decade's work on chemical bonding, explaining hybridization theory, covalent bonding and ionic bonding as explained through electronegativity, and resonance as a means to explain, among other things, the structure of benzene. |
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30 Nov 1938
![]() Isaac Beeckman |
Isaac Beeckman (history of science a) Cornelis de Waard begins to publish the Journaal of Isaac Beeckman. |
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30 Nov 1938
![]() Alexandre Koyré |
Alexandre Koyré (history of science a) Philosopher and historian Alexandre Koyré originates the term scientific revolution to describe the emergence of modern science during the early modern period, from the late Renaissance to the late 18th century. |
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30 Nov 1938
![]() Quarry Bank Mill |
Quarry Bank Mill (history of science a) Quarry Bank Mill, an 18th century working (at this time) cotton mill in north west England, is donated to the National Trust for Places of Historic Interest or Natural Beauty. |
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30 Nov 1938
![]() Richard von Mises |
Richard von Mises (mathematics) Richard von Mises poses the birthday problem in probability. |
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30 Nov 1938
![]() John H. Lawrence |
John H. Lawrence (physiology and medic) John H. Lawrence uses beams of energized neutrons from a particle accelerator to treat a patient with leukemia. |
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30 Nov 1938
![]() Philip Levine |
Philip Levine (physiology and medic) Drs Philip Levine and Rufus Stetson published a first case report on the clinical consequences of non-recognized Rh factor, hemolytic transfusion reaction and hemolytic disease of the newborn in its most severe form. |
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30 Nov 1938
![]() Kirlian photography |
Kirlian photography (technology) Kirlian photography is invented by Semyon Kirlian. |