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[...]... – those of the muscles, those that make the Sun burn, those that Dvipsbugw an appetizer Page 957 25 make the Earth turn, those that determine the differences between attraction, repulsion, friction, creation and annihilation – are made of particles as well The growth of trees, the colours of the sky, the burning of fire, the warmth of a human body, the waves of the sea and the mood changes of people... keeping mathematics to the necessary minimum Understanding the concepts of physics is given precedence over using formulae in calculations The whole text is within the reach of an undergraduate It presents simple summaries of the main domains of physics There are three main stages in the physical description of motion First, there is everyday physics, or classical continuum physics It is based on the existence... Quantum theory’s essence – the lack of the infinitely small Achievements in precision 951 • Physical results of quantum theory 953 • Results of quantum field theory 955 • Is quantum theory magic? 956 • The dangers of buying a can of beans 957 The essence and the limits of quantum theory What is unexplained by quantum theory and general relativity? 959 • How to delude oneself that one has reached the top of. .. of classical electrodynamics and of its limits 614 614 17 Classical physics in a nutshell – one and a half steps out of three The future of planet Earth 616 • The essence of classical physics – the infinitely small implies the lack of surprises 618 • Why have we not yet reached the top of the mountain? 618 620 Bibliography 704 Ch a pter V Quanta of Light and Matter 704 18 Minimum action – quantum theory... each domain, the principal equations follow from the relevant limit Basing the domains of physics on limit principles allows them to be introduced in a simple, rapid and intuitive way The third and final stage is the unification of all these limits in a single description of motion This unusual way of learning physics should reward the curiosity of every reader – whether student or professional In... zoo and the quark model 927 • The mass, shape and colour of protons 928 • Experimental consequences of the quark model 929 • The Lagrangian of quantum chromodynamics 930 • The sizes and masses of quarks 933 • Confinement and the future of the strong interaction 933 • Curiosities about the strong interactions 934 935 30 The weak nuclear interaction and the handedness of nature Curiosities about the weak... illustrations in the text were made available by the copyright holders A warm thank you to all of them; they are mentioned in Appendix G In particular, Luca Gastaldi and Antonio Martos produced images specifically for this text The improvement in the typesetting is due to the professional typographic consulting of Ulrich Dirr The design of the book and the website owe much to the suggestions and support of my... However, we find that the precise description does not include any finite quantities either! These and many other astonishing results of modern physics appear in the third part of this text This third and final part of the text thus describes the present state of the search for a unified theory encompassing general relativity and quantum mechanics To achieve such a description, the secrets of space, time,... object of curiosity By the fifth century bce in ancient Greece, its study had been given a name: physics * Zeno of Elea (c 450 bce), one of the main exponents of the Eleatic school of philosophy Copyright © Christoph Schiller November 1997–May 2006 Ref 1 All motion is an illusion Motion Mountain – The Adventure of Physics available free of charge at www.motionmountain.net ham! The lightning striking the. .. then destiny, symbolized by the waves of the sea, carried us to its shore Near the centre of the island an especially high mountain stands out From its top we can see over the whole landscape and get an impression of the relationships between all human experiences, in particular between the various examples of motion This is a guide to the top of what I have called Motion Mountain The hike is one of