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Description
Cycles of Time: An Extraordinary New View of the UniverseThis groundbreaking book presents a new perspective on three of cosmology's essential questions: What came before the Big Bang? What is the source of order in our universe? And what cosmic future awaits us? Penrose shows how the expected fate of our ever accelerating and expanding universe heat death or ultimate entropy can actually be reinterpreted as the conditions that will begin a new "Big Bang." He details the basic principles beneath our
This groundbreaking book presents a new perspective on three of cosmology's essential questions: What came before the Big Bang? What is the source of order in our universe? And what cosmic future awaits us?
Penrose shows how the expected fate of our ever-accelerating and expanding universe--heat death or ultimate entropy--can actually be reinterpreted as the conditions that will begin a new "Big Bang." He details the basic principles beneath our universe, explaining various standard and non-standard cosmological models, the fundamental role of the cosmic microwave background, the paramount significance of black holes, and other basic building blocks of contemporary physics. Intellectually thrilling and widely accessible, Cycles of Time is a welcome new contribution to our understanding of the universe from one of our greatest mathematicians and thinkers.Binding Type: Paperback
Publisher: Vintage
Published: 05/01/2012
ISBN: 9780307278463
Pages: 288
Weight: 0.47lbs
Size: 7.99h x 5.27w x 0.71d
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Product Reviews
★★★★★ 4
Value for your money
Style: EcoFetch
It's definitely different from the one I lost. It's taking me some time how to throw the ball correctly. It's a hit and miss but we are getting there. When I do get a good throw, it really wings it out there.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Well worth it
Style: EcoFetch
Works great
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Perfect for active dogs
This is a must-have if your dog loves to fetch. It throws the ball far with very little effort and keeps your hands clean—no more slobbery chuckit balls.
Lightweight, durable, and makes playtime much more fun (and less tiring for me!).
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Way better than the M size for us
Like most people that have dogs I first went with the M size or Tennis ball size (about 2.5") chuckit for my 65-70 lbs Lab. After having that for a while and my dogs' evolution from liking to chase the ball to wanting to catch it, I started seeing how the M size could cause some life threating problems for my pup. I was on the fence for several weeks when I came across this option that included a 3" ultra ball as well as a 3" fuzzy tennis ball like ball. These balls can fly so much farther with less effort and my furry friend seeming to like them more than the 2.5 inch. It also seems to fit their mouth better allowing them to enjoy 'the game' (you lost by the way) much more.
If you have a larger dog or your dog has a big mouth, please trust me when I say skip the 2.5" M size balls. You and your dog will haves much more fun with this 3" size
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Reviewed in the United States on December 10, 2024
★★★★★ 5
Chuck it ball launcher
This is great! I have a blue healer that loves it. She will play fetch with the ball all day long. The launcher is easier on my shoulder. I can throw the ball twice as far and when she brings the ball back I can grab it with the launcher without touching a spit covered ball. Awesome buy!
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Reviewed in the United States on May 2, 2025