Preface |
The classical physicist+s approach to the subject / 1: |
The hereditary mechanism / 2: |
Mutations / 3: |
The quantum-mechanical evidence / 4: |
Delbruck+s model discussed and tested / 5: |
Order, disorder and entropy / 6: |
Is life based on the laws of physics? Epilogue: on determinism and free will Mind and Matter / 7: |
The physical basis of consciousness |
The future of understanding |
The principle of objectivation |
The arithmetical paradox: the oneness of mind |
Science and religion |
The mystery of the sensual qualities |
Autobiographical sketches (translated from the German by Schrodinger+s granddaughter Verena) |
What is Life? |
The Classical Physicist's Approach to the Subject |
The general character and the purpose of the investigation |
Statistical physics. The fundamental difference in structure |
The naive physicist's approach to the subject |
Why are the atoms so small? |
The working of an organism requires exact physical laws |
Physical laws rest on atomic statistics and are therefore only approximate |
Their precision is based on the large number of atoms intervening, 1st example (paramagnetism) |
2nd example (Brownian movement, diffusion) |
3rd example (limits of accuracy of measuring) |
The √n rule |
The Hereditary Mechanism |
The classical physicist's expectation, far from being trivial, is wrong |
The hereditary code-script (chromosomes) |
Growth of the body by cell division (mitosis) |
In mitosis every chromosome is duplicated |
Reductive division (meiosis) and fertilization (syngamy) |
Haploid individuals |
The outstanding relevance of the reductive division |
Crossing-over. Location of properties |
Maximum size of a gene |
Small numbers |
Permanence |
'Jump-like' mutations - the working-ground of natural selection |
They breed true, i.e. they are perfectly inherited |
Localization. Recessivity and Dominance |
Introducing some technical language |
The harmful effect of close-breeding |
General and historical remarks |
The necessity of mutation being a rare event |
Mutations induced by X-rays |
First law. Mutation is a single event |
Second law. Localization of the event |
The Quantum |
Mechanical Evidence |
Permanence unexplainable by classical physics |
Explicable by quantum theory |
Quantum theory - discrete states -quantum jumps |
Molecules |
Their stability dependent on temperature |
Mathematical interlude |
First amendment |
Second amendment |
Delbrück's Model Discussed and Tested |
The general picture of the hereditary substance |
The uniqueness of the picture |
Some traditional misconceptions |
Different 'states' of matter |
The distinction that really matters |
The aperiodic solid |
The variety of contents compressed in the miniature code |
Comparison with facts: degree of stability; discontinuity of mutations |
Stability of naturally selected genes |
The sometimes lower stability of mutants |
Temperature influences unstable genes less than stable ones |
How X-rays produce mutation |
Their efficiency does not depend on spontaneous mutability |
Reversible mutations |
Order, Disorder and Entropy |
A remarkable general conclusion from the model |
Order based on order |
Living matter evades the decay to equilibrium |
It feeds on 'negative entropy' |
What is entropy? |
The statistical meaning of entropy |
Organization maintained by extracting 'order' from the environment |
Is Life Based on the Laws of Physics? 76 |
New laws to be expected in the organism |
Reviewing the biological situation |
Summarizing the physical situation |
The striking contrast |
Two ways of producing orderliness |
The new principle is not alien to physics |
The motion of a clock |
Clockwork after all statistical |
Nernst's Theorem |
The pendulum clock is virtually at zero temperature |
The relation between clockwork and organism |
Epilogue. On Determinism and Free Will 86 |
Mind and Matter |
The Physical Basis of Consciousness |
The problem |
A tentative answer |
Ethics |
The Future of Understanding |
A biological blind alley? |
The apparent gloom of Darwinism |
Behaviour influences selection |
Feigned Lamarckism |
Genetic fixation of habits and skills |
Dangers to intellectual evolution |
The Principle of Objectivation |
the arithmetical paradox: the oneness of mind |
Science and Religion |
The Mystery of the Sensual Qualities I53 |
Autobiographical Sketches 165 |
Translated by Schrödinger's granddaughter Verena |
Preface |
The classical physicist+s approach to the subject / 1: |
The hereditary mechanism / 2: |
Mutations / 3: |
The quantum-mechanical evidence / 4: |
Delbruck+s model discussed and tested / 5: |