Mars as the Abode of Life (Classic Reprint) - Couverture souple

Percival Lowell

Couverture souple

ISBN 10 : 1440082464 ISBN 13 : 9781440082467

Editeur : Forgotten Books, 2018

Synopsis

Exploring Mars as a changing world and the search for life.

This book presents a bold view of Mars as an aging planet, its history shaped by planetary evolution and the scarce water that still hints at life. It surveys how Mars compares with Earth, explains the idea of canals and oases, and connects planetary science to the possible future of our own world.

From a pioneering observatory perspective, the work traces how Mars reveals the steps of planetary development, the role of heat and mass, and the way landscapes form as planets cool. It also examines long-debated questions about life, its origins, and how signs of life might be detected on another world, without overpromising the outcomes.

• Learn how planetary evolution shapes a world’s climate, seas, and land
• Understand the canal and oasis observations and what they might imply
• See how Mars is used as a lens to think about Earth’s future
• Discover the scientific method behind drawing conclusions from planetary data

Ideal for readers curious about planetary science, Mars, and enduring questions about life beyond Earth.

A propos du livre

Présentation de l'éditeur

MARS AS THE ABODE OF LIFE FOREWORD UP to the middle of the nineteenth century, astronomy was busied with motions. The wanderings of the planets in their courses attracted attention, and held thought to the practical exclusion of all else concerning them. It was to problems of this character that the great names of the past - Newton, Huygens, Laplace - were linked. But when the century that has gone was halfway through its course, a change came over the spirit of the investigation; with the advance in physics celestial searchers began to concern themselves with matter, too. Gravitational astronomy had regarded the planets from the point of view of how they act; physical astronomy is intent upon what they are. One outcome of this more intimate acquaintance is the new study with which the present papers deal: the evolution of the planets regarded as worlds. Such research has to do not merely with the aggregation of material, but with its subsequent metamorphoses

Table of Contents

CONTENTS; Foreword; PAGE I; PART I; CHAPTER; I The Genesis of a World; Catastrophic origin Meteorites Meteorite worship; Meteoric constitution of solar system Analogy of cataclysm to new stars (Novae) The meteorites gravitate together, generating heat Amount of heat depends on the mass of the body Substances vary with heat and pressure Mass the fundamental factor Cooling Life-history depends on size Planetologic eras; Present aspects of the planets our guide Geologic part of planetology Landscape the result of cooling Mountains in proportion to mass Volcanic phenomena ; Relative roughness of Earth, Moon, and Mars Mountains absent on Mars Slant illumination Importance to astronomers Applied to Mars Not indicative of mountains Two or three thousand feet limit of elevation on Mars; xii; CONTENTS; CHAPTER PACE; Internal heat of the three bodies 23 Darwinian theory of lunar origin , , , ,26 Confirmed by lunar surface 26; Probable comparative

Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2018
• Langue: anglais
• ISBN 10: 1440082464
• ISBN 13: 9781440082467
• Reliure: Broché
• Nombre de pages: 328
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