# Science and Hypothesis

## Henri Poincaré

### Read by LibriVox Volunteers

Jules Henri Poincaré (1854 – 1912) was one of France's greatest mathematicians and theoretical physicists, and a philosopher of science.

As a mathematician and physicist, he made many original fundamental contributions to pure and applied mathematics, mathematical physics and celestial mechanics. He was responsible for formulating the Poincaré conjecture, one of the most famous problems in mathematics. In his research on the three-body problem, Poincaré became the first person to discover a chaotic deterministic system which laid the foundations of modern chaos theory. He is considered to be one of the founders of the field of topology. Poincaré introduced the modern principle of relativity and was the first to present the Lorentz transformations in their modern symmetrical form. He discovered the remaining relativistic velocity transformations and recorded them in a letter to Lorentz in 1905. Thus he obtained perfect invariance of all of Maxwell's equations, an important step in the formulation of the theory of special relativity. (Summary from Wikipedia) (7 hr 11 min)

## Chapters

Introduction by Judd Larmor | 13:35 | Read by Carl Manchester |

Author’s Preface | 10:54 | Read by Peter Eastman |

On the Nature of Mathematical Reasoning | 30:29 | Read by Ashwin Jain |

Mathematical Magnitude and Experiment | 27:10 | Read by Anna Simon |

Non-Euclidean Geometries | 27:52 | Read by Leon Mire |

Space and Geometry | 32:02 | Read by ajacoby |

Experiment and Geometry | 26:55 | Read by ajacoby |

Classical Mechanics | 30:33 | Read by Connor Riley |

Relative and Absolute Motion | 19:52 | Read by Mark F. Smith |

Energy and Thermo-dynamics | 24:04 | Read by J. M. Smallheer |

Hypotheses in Physics | 29:03 | Read by Anna Simon |

The Theories of Modern Physics | 33:10 | Read by J. M. Smallheer |

The Calculus of Probability | 50:39 | Read by Mark F. Smith |

Optics and Electricity | 22:45 | Read by Esther |

Electro-Dynamics | 42:58 | Read by Ashwin Jain |

## Reviews

### good, except for A. Jain

#### thiagovscoelho

Ashwin Jain is very difficult to understand. He has a thick accent which is unfamiliar to me, and he mispronounces many words. I had to go find the book and read it.

#### Bill Filson

very good. Excellent content. ell readers good in most cases,. some readers required careful attention. mathematical equation are difficult when read and pen & paper arr needed.

book is amazing but a couple of the chapters have readers I couldn't understand.