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Description
Space, Time, Matter"The standard treatise on the general theory of relativity." Nature "Whatever the future may bring, Professor Weyl's book will remain a classic of physics." British Journal for Philosophy and Science Reflecting the revolution in scientific and philosophic thought which accompanied the Einstein relativity theories, Dr. Weyl has probed deeply into the notions of space, time, and matter. A rigorous examination of the state of our knowledge of the world
"The standard treatise on the general theory of relativity." -- Nature"Whatever the future may bring, Professor Weyl's book will remain a classic of physics." -- British Journal for Philosophy and Science
Reflecting the revolution in scientific and philosophic thought which accompanied the Einstein relativity theories, Dr. Weyl has probed deeply into the notions of space, time, and matter. A rigorous examination of the state of our knowledge of the world following these developments is undertaken with this guiding principle: that although further scientific thought may take us far beyond our present conception of the world, we may never again return to the previous narrow and restricted scheme.
Although a degree of mathematical sophistication is presupposed, Dr. Weyl develops all the tensor calculus necessary to his exposition. He then proceeds to an analysis of the concept of Euclidean space and the spatial conceptions of Riemann. From this the nature of the amalgamation of space and time is derived. This leads to an exposition and examination of Einstein's general theory of relativity and the concomitant theory of gravitation. A detailed investigation follows devoted to gravitational waves, a rigorous solution of the problem of one body, laws of conservation, and the energy of gravitation. Dr. Weyl's introduction of the concept of tensor-density as a magnitude of quantity (contrasted with tensors which are considered to be magnitudes of intensity) is a major step toward a clearer understanding of the relationships among space, time, and matter.
Binding Type: Paperback
Publisher: Dover Publications
Published: 06/01/1952
ISBN: 9780486602677
Pages: 368
Weight: 0.79lbs
Size: 8.01h x 5.44w x 0.72d
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4.1 ★★★★★
Based on 1816 reviews
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Product Reviews
★★★★★ 5
Heartwarming book for kids
Format: Board book
I Love You to the Moon and Back is such a sweet and heartwarming book. The story is simple but beautifully written, with gentle words that make it perfect for reading with little ones. The illustrations are soft and comforting, and the message of unconditional love really shines through. It’s one of those books that feels calming at bedtime and special every time you read it.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Great story, beautiful pics
Format: Board book
Perfect book to go into a baby shower gift basket. Nice pictures and love the board book
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Good quality book
Format: Board book
I wanted a book that can be a keep sake for my baby. This one is, it is well made and of good quality. I love the little story I read it to my newborn everyday. I love how calm the drawing and even the colors in this book are makes the images less overestimating.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
The Illustrations are Sweet, Storyline… Great!
Format: Board book
This book is sturdy and has a wonderful message. My grandchildren love it! If you are the one who presents 2 children in a classroom or other setting, most children will really love this book. The durability of the book is great. The illustrations are sweet.
The review platform does not allow for me to enter an age span. It does not allow for me to enter multiple ages. It seems to force you to Select one age. I would say that having raised children of my own, I would start reading this book by one years old, but the average child I guess would best benefit with between ages like two and four. The book could be read up to people who are like six years old if they just love a sweet bedtime story.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Ms V
Format: Board book
Awesome book for my nephew. The book is good for a new reader to learn words from.
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Reviewed in the United States on May 29, 2026
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