Date | Text | |
---|---|---|
30 Nov 1925
![]() microbiologist |
microbiologist (biology) American microbiologist Selman Waksman publishes Enzymes. |
|
30 Nov 1925
![]() Raymond Pearl |
Raymond Pearl (biology) The Quarterly Review of Biology is established by Raymond Pearl in the United States. |
|
30 Nov 1925
![]() Waldo Semon |
Waldo Semon (chemistry) Waldo Semon and the B.F. Goodrich Company develop a method of plasticizing polyvinyl chloride, giving it commercial potential. |
|
30 Nov 1925
![]() Phencyclidine |
Phencyclidine (chemistry) Phencyclidine (PCP, angel dust) is first synthesized. |
|
30 Nov 1925
![]() Vladimir Vernadsky |
Vladimir Vernadsky (earth sciences) Vladimir Vernadsky popularises the concept of the biosphere in a book (in Russian) of this title. |
|
30 Nov 1925
![]() Otakar Borůvka |
Otakar Borůvka (mathematics) Otakar Borůvka publishes Borůvka's algorithm, introducing the greedy algorithm. |
|
30 Nov 1925
![]() Pertussis |
Pertussis (medicine) First vaccine for Pertussis. |
|
30 Nov 1925
![]() biogerontologist |
biogerontologist (medicine) American biogerontologist Raymond Pearl publishes his book Alcohol and Longevity demonstrating that drinking alcohol in moderation is associated with greater longevity than either abstaining or drinking heavily. |
|
30 Nov 1925
![]() Gerhard Heilmann |
Gerhard Heilmann (paleontology) Gerhard Heilmann publishes The Origin of Birds (in English) on bird evolution. |
|
30 Nov 1925
![]() Ulster |
Ulster (technology) Ulster-born engineer Harry Ferguson is granted a British patent for his 'Duplex' hitch linking tractor and plough. |
|
30 Nov 1925
![]() Copley Medal |
Copley Medal (awards) Copley Medal: Frederick Hopkins |
|
30 Nov 1925
![]() Wollaston Medal |
Wollaston Medal (awards) Wollaston Medal for Geology: Henry Fairfield Osborn |
|
30 Nov 1925
![]() Neena Schwartz |
birth Neena Schwartz Neena Schwartz, American endocrinologist. |
|
11 Jan 1926
![]() Lev Dyomin |
birth Lev Dyomin Lev Dyomin (died 1998), Soviet Russian cosmonaut. |
|
29 Jan 1926
![]() Abdus Salam |
birth Abdus Salam Abdus Salam (died 1996), Punjabi theoretical physicist. |
|
01 Feb 1926
![]() Hidetsugu Yagi |
Hidetsugu Yagi (technology) Hidetsugu Yagi and Shintaro Uda publish the first description of the Yagi-Uda antenna. |
|
01 Feb 1926
![]() David Medved |
birth David Medved David Medved (died 2009), American physicist. |
|
02 Feb 1926
![]() Frederic Kavaler |
birth Frederic Kavaler Born 2 Feb 1926; died 4 Jan 1998 at age 71. American physiologist who was a pioneer in cardiac electrophysiology. His research on the contraction of heart cells was important in developing ways to better treat heart disease. He was one of the first researchers able to devise techniques to investigate the behaviour of individual heart cells. From the 1960's into the 1970's, Kaveler's investigation of the frog heart muscle formed a foundation on which to determine how drugs could counter heart disease. He pioneered in the field and demonstrated that changes in calcium ion concentrations outside the cells could control heart contractions. |
|
27 Feb 1926
![]() David Hunter Hubel |
birth David Hunter Hubel Born 27 Feb 1926. Canadian-born American neurobiologist, who was a corecipient (with Torsten Nils Wiesel and Roger Wolcott Sperry) of the 1981 Nobel Prize for Physiology or Medicine for mapping the path of nerve impulses from the eye to various centres of the brain. In 1958, Hubel joined Wiesel at Johns Hopkins University, and the two relocated to Harvard in 1959. Their work was made possible by a number of technical advances. From the early 1950s onward it became possible to use microelectrodes to monitor the activity of a single neuron. Their studies were in the area of visual perception, with particular emphasis on the nerve impulses mediating between the retina and the brain. They observed that various nerve cells were responsible for different types of visual stimuli. |
|
05 Mar 1926
![]() Clément Ader |
death Clément Ader Clément Ader (born 1841), engineer and inventor, airplane pioneer. |
|
16 Mar 1926
![]() Robert Goddard |
Robert Goddard (astronomy and space ) Robert Goddard launches the first liquid-fueled rocket, at Auburn, Massachusetts. |
|
03 Apr 1926
![]() Gus Grissom |
birth Gus Grissom Gus Grissom (died 1967), American astronaut. |
|
11 Apr 1926
![]() Luther Burbank |
death Luther Burbank Luther Burbank (born 1849), plant breeder. |
|
08 May 1926
![]() David Attenborough |
birth David Attenborough David Attenborough, English broadcaster and naturalist. |
|
21 Jul 1926
![]() Washington Roebling |
death Washington Roebling Washington Roebling (born 1837), civil engineer. |
|
27 Jul 1926
![]() W. David Kingery |
birth W. David Kingery W. David Kingery (died 2000), American materials scientist specializing in ceramic materials. |
|
23 Aug 1926
![]() Clifford Geertz |
birth Clifford Geertz Born 23 Aug 1926; died 30 Oct 2006 at age 80. American cultural anthropologist, a leading rhetorician and proponent of symbolic anthropology and interpretive anthropology. |
|
04 Sep 1926
![]() George William Gray |
birth George William Gray George William Gray (died 2013), Scottish chemist, discoverer of stable liquid crystal materials leading to the development of liquid crystal displays. |
|
14 Sep 1926
![]() Johan Ludvig Emil Dreyer |
death Johan Ludvig Emil Dreyer Died 14 Sep 1926 at age 74 (born 13 Feb 1852). Danish astronomer who compiled the New General Catalogue of Nebulae and Clusters of Stars, (NGC) in 1888. When he became Director of the Armagh Observatory in 1882, financially it was destitute, with no prospect of replacing its aging instruments. Though Dreyer obtained a new 10-inch refractor by Grubb, the lack of funding for an assistant, precluded him from a continuation of traditional positional astronomy. Instead he concentrated on the compilation of observations made earlier. The NGC he listed 7840 objects and in its supplements (1895, 1908) he added a further 5386 objects. It still remains one of the standard reference catalogs. |
|
23 Sep 1926
![]() Paul Kammerer |
death Paul Kammerer Died 23 Sep 1926 at age 46 (born 17 Aug 1880). Austrian biologist, he claimed to have produced experimental evidence that acquired traits could be inherited. Almost all of Kammerer's experiments involved forcing various amphibians to breed in environments that were radically different from their native habitat to demonstrate Lamarkian inheritance. (This is the idea that what one acquires during one's lifetime is passed on to that person's offspring. If you play guitar, your children will have nimble fingers. Each generation builds upon the past and continues to improve.) When later accused of faking exceptional results with the midwife toad, during a time of depression, he shot himself. |
|
02 Oct 1926
![]() Michio Suzuki |
birth Michio Suzuki Michio Suzuki (died 1998), Japanese mathematician. |
|
07 Oct 1926
![]() Emil Kraepelin |
death Emil Kraepelin Emil Kraepelin (born 1856), psychiatrist. |
|
10 Oct 1926
![]() Clara H. Hasse |
death Clara H. Hasse Clara H. Hasse, botanist |
|
12 Oct 1926
![]() Ruth L. Kirschstein |
birth Ruth L. Kirschstein Ruth L. Kirschstein (died 2009), American pathologist and science administrator at the National Institutes of Health (NIH). |
|
31 Oct 1926
![]() Narinder Singh Kapany |
birth Narinder Singh Kapany Narinder Singh Kapany, Punjabi-born physicist. |
|
23 Nov 1926
![]() aerosol spray |
aerosol spray (technology) The aerosol spray can is patented by Erik Rotheim, a Norwegian chemical engineer. |
|
26 Nov 1926
![]() John Moses Browning |
death John Moses Browning John Moses Browning (born 1855), inventor. |