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Description
Eight Lectures on Theoretical PhysicsIn 1909 the great German physicist and Nobel Prize winner Max Planck (1858 1947) delivered a series of eight lectures at Columbia University giving a fascinating overview of the new state of physics, which he had played a crucial role in bringing about. The first, third, fifth, and sixth lectures present his account of the revolutionary developments occasioned when he first applied the quantum hypothesis to blackbody radiation. The reader is given a
In 1909 the great German physicist and Nobel Prize winner Max Planck (1858-1947) delivered a series of eight lectures at Columbia University giving a fascinating overview of the new state of physics, which he had played a crucial role in bringing about.The first, third, fifth, and sixth lectures present his account of the revolutionary developments occasioned when he first applied the quantum hypothesis to blackbody radiation. The reader is given a valuable opportunity to witness Planck's thought processes both on the level of philosophical principles as well as their application to physical processes on the microscopic and macroscopic scales.
In the second and fourth lectures Planck shows how the new ideas of statistical mechanics transformed the understanding of chemical physics. The seventh lecture discusses the principle of least action, while the final one gives an account of the theory of special relativity, of which Planck had been an early champion.
These lectures are especially important since they reflect Planck's reconsiderations and rethinking of his original discovery of quantum theory. A new Introduction by Peter Pesic places this book in historical perspective among Planck's works and those of his contemporaries. Now available in this inexpensive edition, it will be of particular interest to students of modern physics and of the philosophy and history of science.
Binding Type: Paperback
Publisher: Dover Publications
Published: 07/18/1997
ISBN: 9780486697307
Pages: 176
Weight: 0.42lbs
Size: 8.45h x 5.36w x 0.37d
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★★★★★ 5
Very versatile and durable dog toy
This is not a good toy to leave wit big dogs unattended. That being said it is a GREAT dog toy for households that have a variety size of dogs. Our Golden Retriever and 6 pound Pomeranian both play with it. Both retrieve it and occasionally share carrying it back to us. I know it will eventually get destroyed but that is what dog toys are for. Very durable and with the holes, it allows small dogs to pick it up as easily as larger dogs.
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Reviewed in the United States on July 19, 2025
★★★★★ 5
Keeps my dog busy
This works great for rolling treats up in fleece and putting them in the ball. The ball material is flexible and durable. This is a fun and engaging activity for when the weather prevents outside fun.
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Reviewed in the United States on October 28, 2025
★★★★★ 5
The best dog ball EVER!!!
Our 3 y.o. Mini Australian shepherd destroys every toy that she can. We can’t have any kind of cloth toys, including the heavy duty, triple stitched, fire hose Kong toys. We can’t have rope toys, even the balls. There are many rubber or silicone toys we also can’t have as she destroys them as well. She has 5 of these balls, some for over a year and they are still in GREAT shape. Left in the sun, rain, etc, they just hold up. They also don’t have a lot of surface area to hold slobber so your hand doesn’t get all wet. Heavy enough to still throw a fair distance, but light enough that the dog was fine the few times I’ve accidentally drilled her in the ass. These are the best.
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Reviewed in the United States on July 11, 2021
★★★★★ 5
The best dog ball!
I have bought about 8 of these balls now. Mostly because my dog looses his or I’m buying them for my other dog friends. I put a dog bone in it at dinner time and it keeps my dog occupied while I’m eating my dinner. He loves it and so do I! They also have different sizes. We recently got a bigger dog breed so I got the biggest one. He loves it as well! Worth every penny!
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Reviewed in the United States on June 17, 2023
★★★★★ 5
Long term durability and still my dogs fav toy!
We’ve had this ball for 13 months now. It’s still my dogs #1 favorite toy. I have dogs like that to chew and they have tried but this thing is still fully intact. Definitely got my moneys worth and my dogs love it!!
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Reviewed in the United States on June 24, 2024
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