374:. He succeeded in giving the explanation of the phenomenon called "multiple resonance," discovered by Sarasin and De la Rive. Continuing his experiments at the University of Christiania (1891–1892), he proved experimentally the influence which the conductivity and the magnetic properties of the metallic conductors exert upon the electric oscillations, and measured the depth to which the electric oscillations penetrate in metals of different conductivity and magnetic permeability (the "skin effect"). Finally, in 1895 he furnished a complete theory of the phenomenon of electric resonance, involving a method of utilizing resonance experiments for the determination of the wavelengths, and especially of the damping (the logarithmic decrement) of the oscillations in the transmitter and the receiver of the electric oscillations. These methods contributed much to the development of wireless telegraphy. His papers on electric oscillations were published in
360:, who had discovered by mathematical analysis the apparent actions at a distance between pulsating and oscillating bodies in a fluid, and their analogy with the electric and magnetic actions at a distance. Apparently no attempt had been made to demonstrate experimentally the theories arrived at by the older professor until Vilhelm Bjerknes, then about 17 or 18 years of age, turned his mathematical knowledge and mechanical abilities to the devising of a series of instruments by which all the well-known phenomena of electricity and magnetism were illustrated and reproduced by spheres and discs and membranes set into rhythmic vibration in a bath containing a viscous fluid such as syrup. These demonstrations formed the most important exhibit in the department of physics at the Exposition Internationale d'Électricité held in Paris in 1881, and aroused greatest interest in the scientific world.
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Every profession has its savants - geniuses who appear on the scene once in a generation to turn the accepted wisdom on its head. Psycho analysts had
Sigmund Freud; economists had John Maynard Keynes; architects had Le Corbusier and Frank Lloyd Wright; and meteorologists remember Vilhelm Bjerknes who
493:, which was not a literal school but a school of thought on how the practice of weather forecasting and meteorology should be undertaken. He was the originator of an improved and more scientific weather service, afterwards controlled by his son and collaborator, the meteorologist
411:
and to make modern weather forecasting feasible. Bjerknes himself had foreseen the possible applications as early as 1904. This attack upon the meteorological problems from a hydrodynamical point of view was after 1906 supported by the
446:(1900–1902) he gave the first complete mathematical and experimental exposition of the discoveries of his father, whose age and excessive self-criticism had prevented him from finishing his work himself. In a later book,
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He died of heart problems in Oslo. In 1893, Bjerknes had married
Honoria Bonnevie, who in earlier years assisted him much in his scientific work. Their son
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M.R. Friedman (1989) "Appropriating the weather: Vilhelm
Bjerknes and the construction of a modern meteorology". Cornell University Press.
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de
Vaucouleurs, G.; et al. (September 1975). "The new Martian nomenclature of the International Astronomical Union".
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Vilhelm
Bjerknes with his brother Ernst Wilhelm Bjerknes (left) and his sister-in-law, Norway's first female professor,
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On the
Dynamics of the Circular Vortex with Applications to the Atmosphere and to Atmospheric Vortex and Wave Motion
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where he had been lecturer since 1893. There he elucidated the fundamental interaction between fluid dynamics and
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In 1895, he became professor of applied mechanics and mathematical physics at the
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Vilhelm
Bjerknes with his wife Honoria and his first two children, Karl Anton and
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636:(12th ed.). London & New York: The Encyclopædia Britannica Company.
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in Bonn 1890–1891 and made substantial contributions to Hertz' work on
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931:. Vol. 2. New York: Charles Scribner's Sons. pp. 167–169.
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424:, were published in 1913 under the auspices of the Institution.
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From 1926 to his retirement in 1932, he held a position at the
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Pihl, Mogens (1970–1980). "Bjerknes, Vilhelm
Frimann Koren".
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Synoptische Darstellung atmosphärischer Zustände über Europa
352:(later renamed Oslo), Bjerknes enjoyed an early exposure to
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Before 1955: Numerical Models and the Prehistory of AGCMs
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Foreign associates of the National Academy of Sciences
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to apply it to large-scale motions in the oceans and
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Bjerknes, V. (1906). Fields of force. General Books.
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Members of the Royal Society of Sciences in Uppsala
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1018:Recipients of the Buys Ballot Medal (Netherlands)
27:Norwegian physicist and meteorologist (1862–1951)
998:Members of the Royal Swedish Academy of Sciences
575:Obituary Notices of Fellows of the Royal Society
300:; 14 March 1862 – 9 April 1951) was a Norwegian
649:"Vilhelm Bjerknes: The reluctant meteorologist"
477:in 1912. In 1916, he started the publication
461:at her cabin Snefugl at Mysuseter circa 1946
308:who did much to found the modern practice of
8:
763:died 50 years ago today, on April 9th, 1951.
707:The Biographical Encyclopedia of Astronomers
483:Geophysical Institute, University of Bergen
570:"Vilhelm Friman Koren Bjerknes. 1862–1951"
42:
31:
792:
587:
119:Development of modern weather forecasting
747:"The school with designs on forecasting"
647:Gjengedal, Kjerstin (27 December 2012).
489:(1921), and laid the foundation for the
684:MacTutor History of Mathematics Archive
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1023:Burials at the Cemetery of Our Saviour
993:Academic staff of Stockholm University
399:. It was this work that inspired both
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469:in Oslo before becoming professor of
363:Vilhelm Bjerknes became assistant to
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107:Poincaré–Bjerknes circulation theorem
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1008:Foreign members of the Royal Society
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794:10.1146/annurev.fl.14.010182.000245
777:"Vilhelm Bjerknes and His Students"
435:in an acoustic field, now known as
422:Dynamic Meteorology and Hydrography
928:Dictionary of Scientific Biography
465:In 1907, Bjerknes returned to the
25:
703:"Bjerknes, Vilhelm Frimann Koren"
506:Royal Swedish Academy of Sciences
504:. He was elected a member of the
391:. His major contribution was the
324:, and he developed the so-called
781:Annual Review of Fluid Mechanics
679:"Vilhelm Frimann Koren Bjerknes"
542:on Mars are named in his honor.
250:
230:
775:Eliassen, Arnt (January 1982).
855:Pontifical Academy of Sciences
510:Pontifical Academy of Sciences
356:, as assistant to his father,
18:Vilhelm Frimann Koren Bjerknes
1:
715:10.1007/978-0-387-30400-7_165
531:also became a meteorologist.
241:Vilhelm Friman Koren Bjerknes
906:10.1016/0019-1035(75)90146-3
624:Chisholm, Hugh, ed. (1922).
529:Jacob Aall Bonnevie Bjerknes
522:Royal Meteorological Society
491:Bergen School of Meteorology
326:Bergen School of Meteorology
318:numerical weather prediction
123:Bergen School of Meteorology
48:Vilhelm Bjerknes, circa 1920
514:Fellow of the Royal Society
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516:. He was awarded the 1932
481:. In 1917, he founded the
467:Royal Frederick University
627:"Bjerknes, Vilhelm"
316:that are still in use in
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220:
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1038:Norwegian mathematicians
988:Norwegian climatologists
983:Norwegian meteorologists
828:18 November 2007 at the
689:University of St Andrews
485:where he wrote his book
405:Carl-Gustav Arvid Rossby
701:Durham, Ian T. (2007).
633:Encyclopædia Britannica
385:University of Stockholm
185:University of Stockholm
589:10.1098/rsbm.1951.0002
462:
418:Statics and Kinematics
345:
745:Mcwilliams, Brendan.
709:. Springer: 134–135.
475:University of Leipzig
456:
420:, of a greater work,
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297:[ˈbjæ̂rkneːs]
189:University of Leipzig
153:Fridtjof Nansen Prize
1003:Scientists from Oslo
978:Norwegian physicists
675:Robertson, Edmund F.
653:University of Bergen
414:Carnegie Institution
312:. He formulated the
898:1975Icar...26...85D
673:O'Connor, John J.;
508:in 1905 and of the
393:primitive equations
358:Carl Anton Bjerknes
314:primitive equations
310:weather forecasting
115:Primitive equations
851:"Vilhelm Bjerknes"
502:University of Oslo
463:
395:which are used in
377:Annalen der Physik
346:
193:University of Oslo
938:978-0-684-10114-9
724:978-0-387-31022-0
518:Symons Gold Medal
459:Kristine Bonnevie
427:In his 1906 work
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211:Doctoral students
161:Scientific career
148:Symons Gold Medal
138:Buys Ballot Medal
16:(Redirected from
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953:Family genealogy
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437:Bjerknes forces
429:Fields of force
369:electromagnetic
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332:Life and career
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512:in 1936 and a
495:Jacob Bjerknes
397:climate models
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365:Heinrich Hertz
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342:Jacob Bjerknes
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181:Institutions
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81:(1951-04-09)
79:9 April 1951
29:
973:1951 deaths
968:1862 births
808:23 February
787:(1): 1–12.
350:Christiania
175:Meteorology
95:Citizenship
68:Christiania
962:Categories
546:References
471:geophysics
409:atmosphere
293:Norwegian:
60:1862-03-14
803:0066-4189
372:resonance
302:physicist
225:Signature
98:Norwegian
826:Archived
568:(1951).
566:Gold, E.
540:Bjerknes
536:Bjerknes
348:Born in
245:ForMemRS
143:ForMemRS
89:, Norway
70:, Norway
894:Bibcode
860:7 April
756:8 April
730:8 April
658:8 April
520:of the
473:at the
442:In his
433:bubbles
171:Physics
935:
886:Icarus
801:
721:
598:769020
596:
167:Fields
155:(1908)
150:(1932)
145:(1933)
140:(1933)
135:(1938)
129:Awards
594:JSTOR
288:-niss
286:BYURK
933:ISBN
862:2018
810:2023
799:ISSN
758:2021
732:2021
719:ISBN
660:2021
403:and
320:and
304:and
173:and
87:Oslo
76:Died
54:Born
902:doi
789:doi
711:doi
584:doi
264:ɜːr
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