Rawer Karl (63 results)
Published by Frederick Ungar, 1952
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Hard Cover. Condition: Very Good. First Edition. a very good hardcover; an ex-library copy with usual markings; internally pages bright and clean; ---------- SATISFACTION GUARANTEED --------- FAST, COURTEOUS SERVICE ------ ALL ORDERS SHIPPED WITH DELIVERY CONFIRMATION; Size: 6 x 9". Ex-Library.
Published by Frederick Ungar Publishing, 1952
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Published by Frederick Ungar Publishing Co., 1952
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Hardcover. Condition: Very Good. Dust Jacket Condition: Good. Hardback in very good condition with good condition dust jacket.
Determination und Freiheit - Christlicher Glaube in moderner Gesellschaft 4 Kausalität - Zufall - Vorsehung / Karl Rawer ; Otto Hermann Pesch [u.a.]
Meyer-Abich, Klaus Michael, Karl Rawer und Otto Hermann Pesch:
Language: German
Published by Freiburg im Breisgau ; Basel ; Wien : Herder, 1982
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gebundene Ausgabe. Condition: Sehr gut. 152 S. ; 22 cm gutes und sauberes Exemplar Sprache: Deutsch Gewicht in Gramm: 320.
Published by Frederick Ungar Publishing Co, New York, 1957
- Hardcover
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Contact seller5-star sellerHardcover. Condition: Good. First American Edition. 202 pages. Illustrations. Table of Symbols. Bibliography. Index. Cover has some wear and soiling. Minor page soiling. The ionosphere is a region of Earth's upper atmosphere, from about 60 km (37 mi) to 1,000 km (620 mi) altitude, and includes the thermosphere and parts of the m…esosphere and exosphere. It is ionized by solar radiation, plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical importance because, among other functions, it influences radio propagation to distant places on the Earth Karl Rawer (born April 19, 1913) is a German specialist in radio wave propagation and the ionosphere. He developed the analytical code to determine suitable frequency ranges for short wave communication by which German forces built-up their long distance communications during World War II. After studies of mathematics and physics in Freiburg and Munich (with Arnold Sommerfeld),under Jonathan Zenneck he wrote a thesis on partial reflection of radio waves in an ionospheric layer. Aware of this Johannes Plendl charged him to serve as adviser for the Shortwave communications of the German Luftwaffe, since 1943 for Navy and Army as well. Rawer's code assumes zig-zag paths between Earth and ionosphere. Monthly predictions take account of day-to-day variations. Long term changes from solar cycles is taken account of by Wolfgang Gleissberg's prediction method. After the war Yves Rocard, then director of French Navy research was impressed by Rawer's code. He engaged him as "directeur scientifique" (1946-56) of his newly founded "Service de Prevision Ionospherique". Later (1956-69) Rawer, now serving in Germany as director of "Ionosphoren-Institut Breisach" switched to space research. With his team he participated in the first French scientific rocket launch 1954 in the Sahara desert and later they experimented aboard rockets of different nationality. From 1958 to 1964 he was "professeur associe" at the University of Paris. Rawer held several offices in the international space research organization COSPAR. As director of "Fraunhofer-Institut fur physikalische Weltraumforschung" (1969-79) he became the father of two German/Us satellites (AEROS, 1972 and 1975). He was actively engaged in the International Geophysical Year (gold button 2007) and follow-ups. In the International Union of Radio Science (URSI) he served with William Roy Piggott as co-author of the booklet on ionogram reduction and was vice-chairman and chairman of the ionospheric committee 1966-72. He is the father and longtime chairman of the International Reference Ionosphere that since 1999 is International Standard. Rawer is doctor honoris causa of the university at Dusseldorf, corresponding member of the International Academy of Astronautics and of "Oesterreichische Akademie der Wissenschaften Wien".
Geophysik 3 ; Teil 7. Handbuch der Physik = Encyclopedia of physics / hrsg. von S. Flügge; Bd. 49,7.
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Geophysik III (Geophysik / Geophysics)
Nikol'skij, G.M.; Rawer, K.; Stubbe, P.; Thomas, L.; Yonezawa, T.
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Condition: Gut. Zustand: Gut | Seiten: 392 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar.
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Paperback. Condition: Brand New. reprint edition. 566 pages. German language. 9.60x6.70x1.20 inches. In Stock.
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - 83 input to the ions is balanced by a cooling to atomic oxygen, the major neutral constituent, and measurements of the difference between ion and neutral tem perature permit the determination of atomic oxygen concentrations. Using this approach, AL…CA YDE et al. 6 have shown from data taken above Saint Santin, France, that the atomic oxygen concentration at 200 km is slightly larger in winter than summer. () The molecular concentrations at heights near 200 km can also be derived from a determination of the ratio of the molecular-ion concentration to elec tron concentration, p (Cox and EVANS 7). It can be shown from the steady state form of the continuity equation for 0+ ions that (20.2) where Q(O+) represents the photoionization coefficient of oxygen atoms, and k and k19 represent the rate coefficients of reactions between 0+ ions and 1S molecular nitrogen Illld oxygen (reactions (12.18) and (12.19)). Then the ratio of atomic oxygen to weighted molecular sum is given by: (l-p)Ne [OJ (20.3) Q(O+) , [kMJ where Ne represents the electron concentration.
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - This Encyclopedia aims, basically, at summanzmg the wealth of well established facts and outlining the relevant theories in the different branches of physics. With this as goal, the writers were asked to present their specific field in such a way t…hat access is possible to any scientist without special a priori information in that field; the basic concepts of physics are assumed to be known to the reader. The survey given in each paper was also to be long lasting, so that even a few years after publication, each volume would be useful, for example as an introduction for newcomers or as a source of information for workers in a neighbouring field. In the field of geophysics, dealt with in Vols. 47--49 of the Encyclopedia, this task is difficult to achieve because during the last decades there has been a much faster development of basic information and theory than during the decades before. When I came to contribute to this work the famous Julius Bartels, then editor of the geophysical part, told me that Vol. 49 should certainly take into account the results of the 'International Geophysical Year' 1957/58 (I. G. Y. ), and that we had better wait until these were accessible than produce a kind of information which might be obsolete in a short time.
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - Sect. 14. 297 for such slow variations the effect described under 2. above will be by far the most predominant. In fact, the equipment provides a record of the time derivative of the element in question. 6) Records of the time derivatives of magnet…ic elements can, however, be obtained in a more direct way by recording directly the electromotive force (e. m. f. ) induced in suitably disposed coils by the variations of the geomagnetic field 10, 11. When a coil with the total winding area F is placed with its axis in the direction of a geomagnetic force component the variation of magnetic induction B with time will produce an electromotive force 1 dB 1 dH e=- coveu,uuFdT=- 'oV~,uQf1oFdT (i). )) . ! . =_to-13~ d(B/y) (1). )a) v em! d(tjs) in the coil. The e. mJ. may be amplified and recorded by means of an oscillograph or on a tape recorder. but more often the coil is used in connection with an ordinary galvanometer and the scale value of, for instance the dl1/dt record, will then - in the same way as the scale value of the magnet variometer treated in Subsect. IX - be dependent on the damping factor IX and on TO/T, where To and T are the oscillation periods for the undamped galvanometer and for the magnetic pulsation respectively. The amplitude recorded will be proportional to the amplification factor I, obtained from Eq. (1).
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - Sect. 14. 297 for such slow variations the effect described under 2. above will be by far the most predominant. In fact, the equipment provides a record of the time derivative of the element in question. 6) Records of the time derivatives of magnet…ic elements can, however, be obtained in a more direct way by recording directly the electromotive force (e. m. f. ) induced in suitably disposed coils by the variations of the geomagnetic field 10, 11. When a coil with the total winding area F is placed with its axis in the direction of a geomagnetic force component the variation of magnetic induction B with time will produce an electromotive force 1 dB 1 dH e=- coveu, uuFdT=- 'oV, uQf1oFdT (i). )) . ! . =_to-13 d(B/y) (1). )a) v em! d(tjs) in the coil. The e. mJ. may be amplified and recorded by means of an oscillograph or on a tape recorder. but more often the coil is used in connection with an ordinary galvanometer and the scale value of, for instance the dl1/dt record, will then - in the same way as the scale value of the magnet variometer treated in Subsect. IX - be dependent on the damping factor IX and on TO/T, where To and T are the oscillation periods for the undamped galvanometer and for the magnetic pulsation respectively. The amplitude recorded will be proportional to the amplification factor I, obtained from Eq. (1).
