Search results for "Hanle"
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Hanli die hasie 2
Hierdie is die tweede drie-in-een boek van Hanli die hasie! (Die vlieende hasie; Die Ysprinses & Die Kersfeeswens). Hanli die hasie is die Afrikaanse vertaling van die gewilde Engelse boek Lettice - waarvan daar al oor 'n miljoen boeke verkoop is. Hanli is 'n vrolike hasie wat saam met haar gesin hoog teen die kruin van 'n heuwel woon. Knibbel, knibbel, hop, hop, elke dag is presies dieselfde, behalwe wanneer sy verras word! Op 'n dag sien Hanli 'n pragtige pienk vliegtuig in die lug. Daar en dan besluit sy dat sy ook wil vlieg. Sy flap haar arms, haar ore, selfs haar snorbaarde en stert, maar niks werk nie. Sy plof moedeloos op die gras neer. Sal 'n gewone hasie soos sy dan nooit kan vlieg nie?. 'n Ander keer hoor Hanli hoe kinders oor Kersfees praat. Sy wou nog altyd geweet het wat Kersfees is en besluit om die kinders te volg en self ondersoek in te stel ... Die wonderlikste verrassing van almal is toe Hanli op 'n yskoue wintersoggend genooi word om saam met kinders op die bevrore meer te ysskaats. Net toe sy dink die dag kan nie meer betowerend word nie, kry sy die kans om voor die Ysprinses te dans - heeltemal op haar eie. Hanli die hasie sal reguit in klein dogtertjies se harte in hop!.
R 210.00
Hanli die hasie
Hierdie is 'n drie-in-een boek! (Die dansende hasie; Die strooimeisie & Die feetjiebal). Hanli die hasie is die Afrikaanse vertaling van die gewilde Engelse boek Lettice - waarvan daar al oor 'n miljoen boeke verkoop is. Hanli is 'n vrolike hasie wat saam met haar gesin hoog teen die kruin van 'n heuwel woon. Knibbel, knibbel, hop, hop, elke dag is presies dieselfde...behalwe wanneer sy verras word! Op 'n dag sien Hanli 'n prentjie van 'n ballerina en daar en dan besluit sy dat sy 'n dansende ster wil word. Sy sluit by 'n balletskool aan en oefen elke dag pligsgetrou. Maar sal so 'n klein hasie die danspassies regkry? 'n Ander keer ontvang Hanli 'n briefie: Sy word gevra om strooimeisie by 'n troue te wees. Dit klink so opwindend! Hanli kan haar oe nie glo toe sy haar pragtige strooimeisierok sien nie! Die wonderlikste verrassing van almal is toe Hanli genooi word om 'n feetjiebal in feetjieland by te woon. Net toe sy dink die dag kan nie meer betowerend word nie, kom die Feekoningin daar aan met 'n besonderse geskenk - spesiaal vir Hanli. Hanli die hasie sal reguit in klein dogtertjies se harte in hop!
R 210.00
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R 305.00
Hanle Effect and Level-crossing Spectroscopy
1 The Hanle Effect and Level-Crossing Spectroscopy-An Introduction.- 1. Historical Survey.- 2. Classical Interpretation of the Hanle Effect.- 3. Quantum Mechanical Interpretation of the Hanle Effect.- 4. The Density Matrix Formalism for the Hanle Effect (Broad-Band Excitation).- 5. Laser Excitation and Pressure-Induced Coherences.- 6. Nonzero-Field Level Crossing.- 7. Conclusions.- References.- Appendix. Magnetic Effects on the Polarization of Resonance Fluorescence (original work by Wilhelm Hanle, translated by G. Moruzzi).- 2 The Hanle Effect and Atomic Physics.- 1. Introduction.- 1.1. General Expression for the Hanle Signal in Terms of the Density Matrix.- 2. Spectroscopic Applications.- 2.1. Determination of Atomic Constants.- 2.2. Measurements of Laser-Level Populations.- 2.3. Increasing Resolution, Subnatural Linewidth Effects.- 2.4. Forward Scattering, Line Crossing.- 2.5. Technical Applications.- 3. Collisions.- 3.1. Hanle Effect with Collisional Excitation.- 3.2. Hanle Effect and Optogalvanic Detection.- 3.3. Collision-Induced Hanle Resonances.- 3.4. Fluctuation-Induced Hanle Resonances.- 4. Hanle Effect in Strong Laser Fields.- 4.1. General Characteristic.- 4.2. Specific Situations.- 4.3. Hanle Effect and Nonlinear Optics.- 5. Hanle Effect in Quantum Optics.- 5.1. Dressed-Atom Model.- 5.2. Hanle Effect with Fluctuating Fields.- 5.3. Squeezing in the Hanle Effect.- References.- 3 The Hanle Effect and Level-Crossing Spectroscopy on Molecules.- 1. Introduction.- 2. Molecular Level-Crossing Signal.- 3. Comparison with Quantum Beat Experiments.- 4. Excitation of Molecules.- 5. Lifetime Investigations.- 6. Landé g-Factors.- 7. Electric-Field Level Crossing.- 8. Stark-Zeeman Recrossing and High-Field Level Crossing.- 9. Hanle Effect on NO2.- 9.1. The Influence of Detection Geometry.- 9.2. Details of the Hanle-Effect Signal.- 9.3. Collisions.- 9.4. Discussion of Hanle-Effect Experiments on NO2.- 10. Conclusion.- References.- 4 The Nonlinear Hanle Effect and Its Applications to Laser Physics.- 1. The Nonlinear Hanle Effect and Its Experimental Observation.- 2. Saturation Intensity and Saturated Linewidth.- 3. The Three-Level Case: Homogeneously Broadened Lines.- 4. The Three-Level Case: Doppler-Broadened Lines and the Rate Equations.- 5. The General Case.- 6. The Rate-Equation Approach to the Nonlinear Hanle Effect in Inhomogeneously Broadened Transitions.- 7. The Nonlinear Hanle Effect with a Gaussian Laser Beam.- 8. The Nonlinear Hanle Effect in Absorption.- 9. The Nonlinear Hanle Effect in Laser-Active Media.- 9.1. The He-Ne Laser.- 9.2. The Xe Laser.- 9.3. The He-CdII and He-ZnII Lasers.- 9.4. The Noble-Gas Ion Lasers.- 9.5. Optically Pumped Far-Infrared Lasers.- 9.6. Other Lasers.- 9.7. Conclusions.- References.- 5 Applications of the Hanle Effect in Solar Physics.- 1. Introduction.- 2. Brief Review of the Properties of Solar Magnetic Fields.- 3. Overview of the Diagnostic Possibilities and Limitations of the Hanle Effect.- 4. Basic Theoret
R 2,815.39
Hanle Effect and Level-Crossing Spectroscopy
I am most pleased and, in a way, I feel honored to write the Foreword for the book The Hanle Effect and Level-Crossing Spectroscopy, which covers such a very wide range of applications not only in the initial areas of atomic and molecular physics, but also in solid state physics, solar physics, laser physics, and gravitational metrology. To link these fields together in a coherent way has been the merit of the editors of the book, who attracted most distinguished authors for writing the chapters. In retrospect to Hanle's discovery of quantum mechanical coherence between two quantum states about 65 years ago, this book demonstrates the enormous impact and central importance the effect has had, and most vividly still has, on modern physics. On the other hand, the concept of quantum mechanical coherence, which is an outgrowth of the linear super position principle of quantum states, has been evident through a consider able number of experimental methods beyond the original Hanle effect; some of these methods were only recently discovered or applied and they have indeed revolutionized research fields such as atomic collision physics.
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R 486.00
Terrorism
Terrorism is often depicted as something new and totally alien, a phantom enemy that cannot be understood. But by employing a sophisticated analysis soundly based on an encyclopedic knowledge of military history, Donald J. Hanle shows that three major forms of terrorism - military, revolutionary, and state-sponsored - qualify as the newest forms of war. The author's in-depth investigation reveals that these kinds of terrorists operate in the same basic manner as military forces employed in traditional warfare and have the same basic capabilities and weaknesses. He argues convincingly that countermeasures against these types of terrorist organizations should be based on classical principles of war and combat, and suggests countervailing strategies. Terrorism: The Newest Face of Warfare is a starting point for a sensible and coherent counterterrorism strategy, one that enlists a valuable but heretofore neglected Western arsenal - the study of military history - in the battle against terrorism.
R 683.00
R 585.00
Progress in Atomic Spectroscopy
W. HANLE and H. KLEINPOPPEN In 1919, in the first edition of Atombau and Spektrallinien, Sommerfeld referred to the immense amount of information which had been accumu lated during the first period of 60 years of spectroscopic practice. Sommer feld emphasized that the names of Planck and Bohr would be connected forever with the efforts that had been made to understand the physics and the theory of spectral lines. Another period of almost 60 years has elapsed since the first edition of Sommerfeld's famous monograph. As the editors of this monograph, Progress in Atomic Spectroscopy, we feel that the present period is best characterized by the large variety of new spec troscopic methods that have been invented in the last decades. Spectroscopy has always been involved in the field of research on atomic structure and the interaction of light and atoms. The development of new spectroscopic methods (i.e., new as compared to the traditional optical methods) has led to many outstanding achievements, which, together with the increase of activity over the last decades, appear as a kind of renaissance of atomic spectroscopy.
R 3,123.43
R 428.00
Progress in Atomic Spectroscopy
W. HANLE and H. KLEINPOPPEN In 1919, in the first edition of Atombau and Spektrallinien, Sommerfeld referred to the immense amount of information which had been accumu lated during the first period of 60 years of spectroscopic practice. Sommer feld emphasized that the names of Planck and Bohr would be connected forever with the efforts that had been made to understand the physics and the theory of spectral lines. Another period of almost 60 years has elapsed since the first edition of Sommerfeld's famous monograph. As the editors of this monograph, Progress in Atomic Spectroscopy, we feel that the present period is best characterized by the large variety of new spec troscopic methods that have been invented in the last decades. Spectroscopy has always been involved in the field of research on atomic structure and the interaction of light and atoms. The development of new spectroscopic methods (i.e., new as compared to the traditional optical methods) has led to many outstanding achievements, which, together with the increase of activity over the last decades, appear as a kind of renaissance of atomic spectroscopy.
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R 585.00
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R 367.00
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