A huge amount of extraterrestrial matter enters the Earth's atmosphere every year and eventually settles on the ground. The two main sources of this matter are cosmic dust and meteoroid streams. Meteorites form only a very small fraction of the total mass that is captured by the Earth's atmosphere. Most of the matter is in the form of very fine dust particles. Because of the temperatures reached during entry, a large proportion of these particles evaporate at high altitudes, giving rise to radar signatures, and to the visual phenomenon of shooting stars. This book integrates astronomical observations and theories with geophysical studies, presenting a comprehensive overview of the extraterrestrial matter that falls to Earth from space. Meteoroids are the main topic of the book, although cosmic dust, interplanetary matter and meteorites are also discussed. This work will be of great value to researchers involved in the study of meteor phenomena.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of...
This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work...
The author has sought to incorporate in the book some of the fundamental concepts and principles of the physics and dynamics of the atmosphere, a knowledge and understanding of which should help an...
Earth's atmosphere consists of different gases, namely nitrogen, oxygen, argon and carbon dioxide with water vapors. The study of air is called aerology. The various layers in Earth's atmosphere are...