From the tropical islands of Hawaii to the frozen continent of Antarctica, mountains and valleys are found throughout the world. Encompassing the highest and lowest places on Earth, each was shaped over hundreds of millions of years by various geologic forces. Some features were built by lava, while others rose along the same fault lines that cause earthquakes. Even the most famous mountains and valleys recognized today are slowly changing over time, sculpted by nature's forces of water, wind, and ice.
We always thought of ourselves as being at the center of the Universe and at rest. It was not until very recently that Copernicus explained how our Earth is orbiting the Sun and that the Sun, not the Earth, is at the center of our solar system. Today’s theories such as Einstein’s special and general relativity, still believe that we and our galaxy, are at the center of the Universe. In fact, relativity with its “cosmological principle” claims that any observer on any galaxy in the Universe can consider him or herself at the center and at rest.
The present book, stemmin g from the first four chap ters of the authors' Tensor Calculus (Moscow, 1969), constitutes a lucid and completely elementary introduction to linear algebra. The treatment is virtually self-contained. In fact, the mathematical background assumed on the part of the reader hardly exceeds a smattering of calculus and a casual acquaintance with determinants. A special merit of the book, reflecting its lineage, is its free use of tensor notation, in particular the Einstein summation convention.
Added by: lucius5 | Karma: 1660.85 | Only for teachers, Non-Fiction | 13 April 2010
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How to Start and Run a Home Tutoring Business
This book is a complete business package in book form. It contains a proven successful formula which eliminates the expensive trial and error period of setting up your own tutoring agency and guides you through every aspect of running your own business. More and more people are seeking a flexible lifestyle, which allow greater freedom while still earning a living. Reading this book will give you the courage to take the first step towards what is a viable and exciting venture.
Tired of your humdrum workday routine? Looking for a new an exciting career path that allows you to be your own boss and make your own rules? The 200 Best Home Businesses is the book for you. This completely revised and updated 2nd edition profiles 200 of the best and most profitable businesses that you can run from your home. Inside, you'll find jobs for your every interest, from Computer Programmer to Personal Chef. Each business profile provides you with all of the information you need to choose the business that's right for you.
