Forest Homes – Bianki

In this post we will see Forest Homes by Vitaly Bianki.

The book is actually a compilation of four children’s stories

Forest Homes – Translated by Fainna Glagoleva

Red Hill – Translated by Olga Shartse

Ant Hurries Home – Translated by Fainna Glagoleva 

The First Hunt – Translated by Ronald Vroon



Lot of wonderful illustrations through the book done by Mai Miturich. The book was first published by Raduga Publishers in 1988.

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All credits to Guptaji.


You can get the book here.

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Fundamentals of Theoretical Physics – Savelyev

In this post we will see the two volume set titled Fundamentals of Theoretical Physics by I. V. Savelyev. Previously we have seen Physics A General Course by the same author.

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The book being offered to the reader is a logical continuation of the author’s three-volume general course of physics. Everything possible has been done to avoid repenting what has been set out in the three-volume course. Particularly. the experiments underlying the advancing of physical ideas are not treated, and some of the results obtained are not discussed.

The book has been conceived as a training aid for students of non- theoretical specialities of higher educational institutions. I had in mind readers who would like to grasp the main ideas and methods of theoretical physics without delving into the details that are of interest only for a specialist. This book will be helpful for physics instructors at higher schools, and also for everyone interested in the subject but having no time to become acquainted with it (or re- store it in his memory) according to fundamental manuals.

The books were translated from the Russian by G. Leib and was first published in 1982.

We have added new covers to existing pdfs. All other credits to original uploaders. Thanks to commentators for points the libgen links.

Fundamentals of Theoretical Physics Vol 1

Fundamentals of Theoretical Physics Vol 2

Contents Vol 1

Part One. Mechanics 11 Chapter I. The Variational Principle in Mechanics 11 1. Introduction 11 2. Constraints 13 3. Equations of Motion in Cartesian Coordinates 16 4. Lagrange’s Equations in Generalized Coordinates 19 5. The’ Lagrangian and Energy 24 6. Examples of Compiling Lagrange’s Equations 28 7. Principle of Least Action 33 Chapter II. Conservation Laws 36 8. Energy Conservation 36 9. Momentum Conservation 37 10. Angular Momentum Conservation 39 Chapter III. Selected Problems in Mechanics 41 11. Motion of a Particle in a Central Force Field 41 12. Two-Body Problem 45 13. Elastic Collisions of Particles 49 14. Particle Scattering 53 15. Motion in Non-Inertial Reference Frames 57 Chapter IV. Small-Amplitude Oscillations 64 16. Free Oscillations of a System Without Friction 64 17. Damped Oscillations 66 18. Forced Oscillations 70 8 CONTENTS 19. Oscillations of a System with Many Degrees of Freedom 72 20. Coupled Pendulums 77 Chapter V. Mechanics of a Rigid Body 82 21. Kinematics of a Rigid Body 82 22. The Euler Angles 85 23. The Inertia Tensor 88 24. Angular Momentum of a Rigid Body 95 25. Free Axes of Rotation 99 26. Equation of Motion of a Rigid Body 101 27. Euler’s Equations 105 28. Free Symmetric Top 107 29. Symmetric Top in a Homogeneous Gravitational Field 111 Chapter VI. Canonical Equations 115 30. Hamilton’s Equations 115 31. Poisson Brackets 119, 32. The Hamilton- Jacobi Equation 121 Chapter VII. The Special Theory of Relativity 125 33. The Principle of Relativity 125 34. Interval 127 35. Lorentz Transformations 130 36. Four-Dimensional Velocity and Acceleration 134 37. Relativistic Dynamics 136 38. Momentum and Energy of a Particle 139 39. Action for a Relativistic Particle 143 40. Energy-Momentum Tensor 147 Part Two. Electrodynamics 157 Chapter VIII. Electrostatics 157 41. Electrostatic Field in a Vacuum 157 42. Poisson’s Equation 159 43. Expansion of a Field in Multipoles 161 44. Field in Dielectrics 166 45. Description of the Field in Dielectrics 170 46. Field in Anisotropic Dielectrics 175 Chapter IX. Magnetostatics 177 47. Stationary Magnetic Field in a Vacuum 177 48. Poisson’s Equation for the Vector Potential 179 49. Field of Solenoid 182 50. The Biot-Savart Law 186 51. Magnetic Moment 188 52. Field in Magnetics 194 Chapter X. Time-Varying Electromagnetic Field 199 53. Law of Electromagnetic Induction 199 CONTENTS 9 ’ 54. Displacement Current 200, 55. Maxwell’s Equations 201 56. Potentials of Electromagnetic Field 203 57. D’Alembert’s Equation 207 58. Density and Flux of Electromagnetic Field Energy 208 59. Momentum of Electromagnetic Field 211 Chapter XI. Equations of Electrodynamics in the Four-Dimensional Form 216 60. Four-Potential 216 61. Electromagnetic Field Tensor 219 62. Field Transformation Formulas 222 63. Field Invariants 225 64. Maxwell’s Equations in the Four-Dimensional Form 228 65. Equation of Motion of a Particle in a Field 230 Chapter XII. The Variational Principle in Electrodynamics 232 66. Action for a Charged Particle in an Electromagnetic Field 232 67. Action for an Electromagnetic Field 234 68. Derivation of Maxwell’s Equations from the Principle of Least Action 237 69. Energy-Momentum Tensor of an Electromagnetic Field 239 70. A Charged Particle in nil Electromagnetic Field 244 Chapter XIII. Electromagnetic Waves 248 71. The Wave Equation 248 72. A Plane Electromagnetic Wave in a Homogeneous and Isotropic Medium 250 73. A Monochromatic Plane Wave 255 74. A Plane Monochromatic Wave in a Conducting Medium 260 75. Non-Monochromatic Waves 265 Chapter XIV. Radiation of Electromagnetic Waves 269 76. Retarded Potentials 269 77. Field of a Uniformly Moving Charge 272 78. Field of an Arbitrarily Moving Charge 276 79. Field Produced by a System of Charges at Great Distances 288 80. Dipole Radiation 288 81. Magnetic Dipole and Quadrupole Radiations 291 Appendices 297 I. Lagrange’s Equations for a Holonomic System with Ideal Xon- Stationarv Constraints 297 II. Euler’s Theorem for Homogeneous Functions 299 III. Some Information from the Calculus of Variations 300 IV. Conics 309 V. Linear Differential Equations with Constant Coefficients 313 VI. Vectors 316 VII. Matrices 330 VIII. Determinants 338 IX. Quadratic Forms 347 10 CONTENTS X. Tensors 355 XI. Basic Concepts of Vector Analysis 370 XII. Four-Dimensional Vectors and Tensors i Space 393 XIII. The Dirac Delta Function 412 XIV. The Fourier Series and Integral 413 Index 419

Contents Volume 2

Chapter I. Foundations of Quantum Mechanics 9 1. Introduction 9 2. State 10 3. The Superposition Principle 12 4. The Physical Meaning of the Psi-Function 14 5. The Schrodinger Equation 16 6. Probability Flux Density 20 Chapter II. Mathematical Tools of Quantum Mechanics 23 7. Fundamental Postulates . 23 8. Linear Operators 27 9. Matrix Representation of Operators 31 10. The Algebra of Operators 38 11. The Uncertainty Relation 45 12. The Continuous Spectrum 48 13. Dirac Notation 51 14. Transformation of Functions and Operators from One Representa- tion to Another 55 Chapter III. Eigenvalues and Eigenfunctions of Physical Quantities 63 15. Operators of Physical Quantities 63 16. Rules for Commutation of Operators of Physical Quantities … 67 17. Eigenfunctions of the Coordinate and Momentum Operators … 71 18. Momentum and Energy Represonlal ions 74 19. Eigenvalues and Eigenfunctions of the Angular Momentum Operator 78 20. Parity 81 Chapter IV. Time Dependence of Physical Quantities 83 21. The Time Derivative of an Operator 83 22. Time Dependence of Matrix Elements 86 Chapter V. Motion of a Particle in Force Fields 89 23. A Particle in a Central Force Field 89 24. An Electron in a Coulomb Field. The Hydrogen Atom 94 25. The Harmonic Oscillator 106 26. Solution of the Harmonic Oscillator Problem in the Matrix Form 109 27. Annihilation and Creation Operators 116 CONTENTS 7 Chapter VI. Perturbation Theory 123 28. Introduction 123 29. Time-Independent Perturbations 123 30. Case of Two Close Levels 132 31. Degenerate Case 136 32. Examples of Application of the Stationary Perturbation Theory 141 33. Time-Dependent Perturbations 148 34. Perturbations Varying Harmonically with Time 156 35. Transitions in a Continuous Spectrum 163 36. Potential Energy as a Perturbation 164 Chapter VII. The Quasiclassical Approximation 169 37. The Classical Limit 169 38. Boundary Conditions at a Turning Point 174 39. Bohr-Sommerfeld Quantization Rule 184 40. Penetration of a Potential Barrier 188 Chapter VIII. Semiempirical Theory of Particles with Spin 192 41. Psi-Function of a Particle with Spin 192 42. Spin Operators 194 43. Eigenvalues and Eigenfunctions of Spin Operators 202 44. Spinors 205 Chapter IX. Systems Consisting of Identical Particles 214 45. Principle of Indistinguishability of Identical Particles 214 46. Psi-Functions for Systems of Particles. The Pauli Principle . . . 216 47. Summation of Angular Momenta 222 48. Psi-Function of System of Two Particles Having a Spin of 1/2 . . 225 49. Exchange Interaction 229 50. Second Quantization 233 51. Second Quantization Applied to Bosons 235 52. Second Quantization Applied to Fermions 250 Chapter X. Atoms and Molecules 258 53. Methods of Calculating Atomic Systems . 258 54. The Helium Atom f Ai 259 55. The Variation Method 263 56. The Method of the Self-Consistent Field 268 57. The Thomas-Fcrmi Method 275 58. The Zeeman Effect 278 59. The Theory of Molecules in the Adiabatic Approximation . . . 281 60. The Hydrogen Molecule 285 Chapter XI. Radiation Theory • 291 / i u^ir^u 61. Quantization of an Electromagnetic Field L • 291 62. Interaction of an Electromagnetic Field with a Charged Particle 301 ■63. One-Photon Processes 305 64. Dipole Radiation 308 65. Selection Rules 312 8 CONTENTS Chapter XII. Scattering Theory 315 66. Scattering Cross Section . SPlAtur 1 . 315 67. Scattering Amplitude 317 68. Born Approximation 319 69. Method of Partial Waves 321 70. Inelastic Scattering 328 Appendices . . I. Angular Momentum Operators in Spherical Coordinates . . . II. Spherical Functions III. Cuebyshev-IIerinite Polynomials IV. Some Information from the Theory of Functions of a Complex Variable …. V. Airy Function VI. Method of Green’s Functions VII. Solution of the Fundamental Equation of the Scattering Theory by the Method of Green’s Functions VIII. The Dirac Delta Function

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Physics A General Course – Savelyev

In this post we will see the three volume Physics – A General Course by I. V. Savelyev.

I have done everything in my power to acquaint students with the basic ideas and methods of physics and to teach them how to think physically. This is why the book is not encyclopedic in its nature. It is mainly devoted to explaining the meaning of physical laws and showing how to apply them consciously. What I have tried to achieve is a deep knowledge of the fundamental principles of physics rather than a shallower acquaintance with a wide range of questions.

While using the book, try not to memorize the material formalistically and mechanically, but logically, i.e. memorize the material by thoroughly understanding it. I have tried to present physics not as a science for “cramming”, not as a certain volume of information to be memorized, but as a clever, logical, and attractive science.

Notwithstanding my desire to reduce the size, I considered it essential to include a number of mathematical sections in the course: on vectors, linear differential equations, the basic concepts of the theory of probability, etc. This was done to impart a “physical” tinge to the relevant concepts and relations. In addition, the mathematical “inclusions” make it possible to go on with the physics even if, as is often the case, the relevant material has not yet been covered in a mathematics course.
The present course is intended above all for higher technical schools with an extended syllabus in physics. The material has been arranged, however, so that the book can be used as a teaching aid for higher technical schools with an ordinary syllabus simply by omitting some section


i-v-savelyev-physics-general-course-vol-1_0000  i-v-savelyev-physics-general-course-vol-2_0000


The books were translated from the Russian by G. Leib and were first publised in 1980, this copy is the third reprint in 1989.

We have added new covers to the existing pdfs. All other credits to the original uploaders. Thanks to all the commentators who pointed to the libgen links.

Volume 1

Volume 2

Volume 3



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Some new hauls

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From Blossoms in Bangalore. If you are in B’lore do visit., you might get some surprises there.

mir-01 mir-06Received via Hawakajhonka with many thanks from Guptaji


Received with thanks from Ajay.ssa

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Fundamentals of Physics – Yavorksy and Pinsky

In this post we will see the long awaited two volume Fundamentals of Physics by B. M. Yavorsky and A. A. Pinsky.


This textbook explains the con­cepts and most important advances of modern physics without resort to higher mathematics. Avoids the traditional division between clas­sical and modern physics and en­deavours to present all material so as to develop quantum mechanical concepts.

The textbook is intended for secon­dary schools and as a teaching aid for physics teachers in general and technical secondary schools. Will be found useful by correspondence students studying ‘A ’ level and first year physics.


Vol. I. Motion and Forces, Conservation Laws, Molecular Kinetic Theory of Gases, Molecular Forces and states of aggregation of matter, Electrodynamics

Vol. II . Vibrations and Waves. Quantum Physics of Atoms, Molecules and Solids. Physics of the Nucleus and Elementary Par­ticles.

Comment submitted by Node:

Fundamentals of Physics Volume: 1
Author(s): B. M. Yavorsky, A. A. Pinsky



PDF | 544 pp. | OCR | 20 MB

Fundamentals of Physics Volume: 2
Author(s): B. M. Yavorsky, A. A. Pinsky


PDF | OCR | 489 pp. | 24.5 MB


All credits to the original uploader. Thanks to node for pointing out the links.

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A Course of Differential Geometry and Topology – Mishchenko, Fomenko

In this post we will see A Course of Differential Geometry and Topology – A. Mishchenko and A. Fomenko. Earlier we had seen the Problem Book on Differential Geometry and Topology by these two authors which is the associated problem book for this course.


About the book

The present course deals with the fundamentals of differential geometry and topology whose present state is the culmination of contributions of generations of mathematicians.

The English edition has been thoroughly revised in line with comments and suggestions, made by our readers, the mistakes and misprints that were detected have been corrected. This is essentially a textbook for modern course on differential geometry and topology, which is much wider than the traditional courses on classical differential geometry, and it covers many branches of mathematics a knowledge of which has become essential for a modern mathematical education. We hope that a reader who has mastered this material will be able to do independent research both in geometry and related fields. To gain a deeper understanding of the material of this book, we recommend the reader should solve the questions in A. S. Mishchenko, Yu. P. Solovyev and A. T. Fomenko Problems in Differential Geometry and Topology which was specially compiled to accompany this course.


The book was translated from the Russian by Anatoly Talshev and was first published by Mir in 1988.

PDF | 75 MB |  459 Pages | Cover |

All credits to the original uploader.

Note: Though the file size is large  ~ 75 MB, the scan quality is poor, OCR may not be of any help.

You can get the book here (libgen link) and here (IA link)


Preface to English Edition 8

Preface to Russian Edition 9

Chapter 1 Introduction to Differential Geometry 12

Chapter 2 General Topology 67

Chapter3 Smooth Manifolds (General theory) 92

Chapter 4 Smooth Manifolds (Examples) 147

Chapter 5 Tensor Analysis and Riemannian Geometry 294

Chapter 6 Homology Theory 371

Chapter 7 Simple Variational Problems in Riemannian Geometry 407

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Senior Physics 1 – Kikoin, Kikoin

In this post we will see the book Senior Physics 1 by I. K. Kikoin and A. K. Kikoin. senior-physicsAbout the book

This book is the second in the series the first one being Junior Physics. There is a second volume in this series which we do not have now. This book covers fundamentals of motion, its laws, forces in nature and conservation laws also. There is a section on Practical work at the end of the book.

The book was translated from the Russian by Natalia Wadhwa. And was first published by Mir in 1987.

PDF| 256 Pages | Cover | Bookmarked | OCR | BW | 8.4 M

All credits to the original uploader.

You can get book here (libgen link) and here (IA link).


Table of contents :
Introduction……Page 13
Basic Problem of Mechanics……Page 15
1.1. Translational Motion of Bodies. Material Point……Page 16
1.2. Position of a Body in Space. Reference System……Page 17
1.3. Displacement……Page 19
1.4. On Vector Quantities……Page 20
1.5. Projections of a Vector onto Coordinate Axes and Operations on Projections……Page 23
1.6. Uniform Rectilinear Motion. Velocity……Page 28
1.7. Graphic Representation of Motion……Page 32
1.8. Relative Nature of Motion……Page 35
1.9. On System of Units……Page 40
Summary……Page 42
2.1. Velocity of Nonuniform Motion……Page 43
22. Acceleration. Uniformly Accelerated Motion……Page 46
2.3. Displacement in Uniformly Accelerated Motion……Page 50
24. Measurement of Acceleration……Page 58
2.5. Free Fall. Acceleration Due to Gravity……Page 59
Summary……Page 61
3.1. Displacement and Velocity in Curvilinear Motion……Page 63
3.2. Acceleration in Uniform Motion of a Body in a Circle……Page 66
3.3. Period and Frequency of a Body Moving in a Circle……Page 69
3.4. Motion on a Routing Body……Page 70
Summary……Page 71
4.1. Bodies and Surroundings. Newton’s First Law……Page 73
4.2. Interaction of Bodies. Acceleration of Bodies as a Result of Their Interaction……Page 77
4.3. Inertia of Bodies……Page 80
4.4. Mass of Bodies……Page 82
4.5. Force……Page 86
4.6. Newton’s Second Law……Page 88
4.7. What Do We Learn from Newton’s Second Law?……Page 91
4.8. Measurement of Force……Page 94
4.9. Newton’s Third Law……Page 97
Summary. The Importance of Newton’s Laws……Page 99
Are There Many Types of Force in Nature?……Page 102
5.1. Elastic Forces……Page 103
5.2. Motion Is the Cause of Deformation……Page 106
5.3. Force of Universal Gravitation……Page 108
5.4. Gravitational Constant……Page 111
5.5. Force of Gravity……Page 113
5.6. Friction. Static Friction……Page 116
5.7. Sliding Friction……Page 120
Summary……Page 123
6.1. Motion of a Body Under the Action of Elastic Force……Page 124
6.2. Motion Under the Action of Force of Gravity: a Body Moves Along the Vertical……Page 125
6.3. Motion Under the Action of Force of Gravity: Initial Velocity of a Body Is at an Angle to the Horizontal……Page 130
6.4. Weight of a Body. Weightlessness……Page 136
6.5. Weight of a Body Moving with an Acceleration……Page 139
6.6. Artificial Earth’s Satellites. Orbital Velocity……Page 143
6.7. Motion of a Body Under the Action of Friction……Page 146
6.8. Motion of a Body Under the Action of Several Forces……Page 148
6.9. Motion on Bends……Page 153
6.10. Conditions of Translatory Motion of Bodies. Centre of Mass and Centre of Gravity……Page 156
6.11. Are the Laws of Newtonian Mechanics Always Valid? (Motion from Different Points of View)……Page 158
Summary……Page 161
7.1. Equilibrium of Bodies in the Absence of Rotation……Page 162
7.2. Equilibrium of Bodies with a Fixed Axis of Rotation……Page 165
7.3. Stability of Equilibrium of Bodies……Page 171
Summary……Page 176
8.1. Force and Momentum……Page 177
8.2. The Law of Conservation of Momentum……Page 179
8.3. Reaction Propulsion……Page 183
Summary……Page 187
9.1. Mechanical Work……Page 188
9.2. Work Done by Forces Applied to a Body and the Change in Its Velocity……Page 191
9.3. Work Done by the Force of Gravity……Page 195
9.4. Potential Energy of a Body Acted upon by the Force of Gravity……Page 198
9.5. Work Done by an Elastic Force: Potential Energy of a Body Subject to Elastic Deformation……Page 201
9.6. The Law of Conservation of Total Mechanical Energy……Page 205
9.7. Friction Work and Mechanical Energy……Page 209
9.8. Power……Page 212
9.9. Energy Transformation. Utilization of Machinery……Page 215
9.10. Efficiency……Page 217
9.11. Flow of Fluid in Pipes. Bernoulli’s Law……Page 220
On the Importance of Conservation Laws……Page 224
Conclusion……Page 226
1. Determination of the Acceleration of a Body in Uniformly Accelerated Motion……Page 234
2. Measurement of the Rigidity of a Spring……Page 235
3. Determination of the Coeflicient of Sliding Friction……Page 237
4. Analysis of Motion of a Body Along a Parabola……Page 238
5. Analysis of Motion of a Body in a Circle……Page 239
6. Equilibrium Conditions for a Lever……Page 241
7. Determination of the Centre of Gravity of a Flat Plate……Page 242
8. Experimental Investigation of the Law of Conservation of Mechanical Energy……Page 243
Answers to Exercises……Page 245
Index……Page 247

Posted in books, mir books, mir publishers, physics, science | Tagged , , , , , , , , , , | 2 Comments