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Description
Science and HypothesisHere is Poincare's famous discussion of creative psychology as it is revealed in the physical sciences. Explaining how such basic concepts as number and magnitude, space and force were developed, the great French mathematician refutes the skeptical position that modern scientific method and its results are wholly factitious. The places of rigorous logic and intuitive leaps are both established by an analysis of contrasting methods of idea creation in
Here is Poincare's famous discussion of creative psychology as it is revealed in the physical sciences. Explaining how such basic concepts as number and magnitude, space and force were developed, the great French mathematician refutes the skeptical position that modern scientific method and its results are wholly factitious. The places of rigorous logic and intuitive leaps are both established by an analysis of contrasting methods of idea-creation in individuals and in modern scientific traditions. The nature of hypothesis and the role of probability are investigated with all of Poincare's usual fertility of insight.Partial contents: On the nature of mathematical reasoning. Magnitude and experiment. Space: non-Euclidean geometrics, space and geometry, experiment and geometry. Force: classical mechanics, relative and absolute motion, energy and thermodynamics. Nature: hypotheses in physics, the theories of modern physics, the calculus of probabilities, optics and electricity, electro-dynamics.
"Poincare's was the last man to take practically all mathematics, both pure and applied as his province. Few mathematicians have had the breadth of philosophic vision that Poincare's had, and none is his superior in the gift of clear exposition." Men of Mathematics, Eric Temple Bell, Professor of Mathematics, University of Cambridge"
Binding Type: Paperback
Publisher: Dover Publications
Published: 11/30/2011
ISBN: 9780486602219
Pages: 288
Weight: 0.62lbs
Size: 8.02h x 5.45w x 0.54d
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4.0 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Great Product
Flavor Name: Boy, Size: 8 Count (Pack of 1)
My dogs loved these after one of their birthdays. The treats were packaged very nicely and would buy again,
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Reviewed in the United States on March 11, 2026
★★★★★ 3
Wouldn't buy again
Flavor Name: Boy, Size: 8 Count (Pack of 1)
They were all individually wrapped which was annoying to take them out the wrapper without them falling apart
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Finally a Toy My Pitbull Hasn’t Destroyed in 5 Minutes
Color: Blue+Red, Color: Blue+Red
I have a 65 lb pitbull who destroys most toys almost immediately, so I’m always skeptical when products claim to be “indestructible.” Most toys last maybe a few minutes in my house before pieces are everywhere.
These have actually held up surprisingly well.
The material feels durable and thick enough to handle really aggressive chewing, and so far my dog hasn’t been able to destroy them like he does with most other balls and squeaky toys. That alone makes these worth it to me.
I also really like the size. They’re large enough that I don’t have to constantly worry about him accidentally swallowing them or choking while playing, which is a huge plus for bigger dogs.
The squeaker inside also keeps him interested longer since he usually gets bored quickly with toys that don’t make noise or bounce around well.
If you have a strong chewer or larger dog and you’re tired of replacing destroyed toys constantly, these are definitely worth trying.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Excellent choice
Color: Red+Orange, Color: Red+Orange
I will skeptical when buying these because I have a pitbull bulldog that likes to chew holes in every toy. This is her favorite she choose on the ball, but she doesn’t actually ruin it because she can’t. It holds up one of the squeakers broke, but that’s expected I guess my wife actually ordered more. I’m not sure if it was from the same seller or not but those ones they don’t favor as much for some reason I seen the same different colors. My dog even sleeps with it sometimes. The picture shows for sleeping with it. I’m definitely happy. I got these. They are tough. I like the fact that they have those little recessed holes so they can grab a hold of it and not get it all slimy like the other balls we have.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
GSD Winner
Color: Blue+Red
10/10 recommend for big dogs with a tough chew. Our GSD absolutely loves these squeaky balls. They have perfect texture for his teeth and for our grip. They are the size of a baseball and are so durable and fun. Yes the squeaky is LOUD but he loves them so much that it's cute
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Reviewed in the United States on May 12, 2026