Pay in installments of $4.24 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Gravitational Curvature: An Introduction to Einstein's TheoryThis classic text and reference monograph applies modern differential geometry to general relativity. A brief mathematical introduction to gravitational curvature, it emphasizes the subject's geometric essence, replacing the often tedious analytical computations with geometric arguments. Clearly presented and physically motivated derivations express the deflection of light, Schwarzchild's exterior and interior solutions, and the Oppenheimer Volkoff
This classic text and reference monograph applies modern differential geometry to general relativity. A brief mathematical introduction to gravitational curvature, it emphasizes the subject's geometric essence, replacing the often-tedious analytical computations with geometric arguments. Clearly presented and physically motivated derivations express the deflection of light, Schwarzchild's exterior and interior solutions, and the Oppenheimer-Volkoff equations.A perfect choice for advanced students of mathematics, this volume will also appeal to mathematicians interested in physics. It stresses the global aspects of cosmology and is suitable for independent study as well as for courses in differential geometry, relativity, and cosmology. Prerequisites include a background in Riemannian geometry and basic physics or a familiarity with relativity theory. Background chapters, with derivations, cover special relativity, continuum mechanics, and electromagnetism.
Binding Type: Paperback
Publisher: Dover Publications
Published: 07/19/2011
ISBN: 9780486481210
Pages: 172
Weight: 0.45lbs
Size: 8.40h x 5.30w x 0.50d
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 26 reviews
Sort
Product Reviews
★★★★★ 5
My wife uses it more
Style: dog ball launcher
My dog loves it she can run father
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
★★★★★ 1
Mid at best
Style: dog ball launcher
It’s mid at best. Requires a little trick to get it to go forward and not just fly up in the air., it’s also not telescoping. It just comes apart into two pieces.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
★★★★★ 5
Better than expected
Style: dog ball launcher
Works GREAT !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
★★★★★ 1
Wouldn’t buy again
Style: dog ball launcher
Compared to the namebrand thrower this one sucks. It just throws the ball way up in the air.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
★★★★★ 5
Good size, Durable, Easy to use
My dog doesn't really play with balls that much. But she does love a laser which I was hoping the light in this ball might mimic for her. And it does. She loves this ball. And the winter months when the days are short finding games we can play at the park is critical for her well-being.
The ball came in an attractive packaging with a charger and charged quickly. It's a simple push of the button on the light to activate it. It will turn off on its own but light back up when it's moved, which is handy.
The light has a soft glow to it which is pleasant to be around. The ball is easy to see at night and has a good bounce to it as well. My dog chewed on it for quite a bit and it's held up really well, so I will say it's pretty durable and chewable.
The weight in the ball is nice and it's an easy throw. My only suggestion is to make sure that you have the light piece locked in place first. I have thrown it where the ball and the light went in two different directions. And that was my fault. Lol
We have had some great fun with this ball at the park. For the short winter days it's a perfect addition to your pet's play routine. We love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025