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Description
Pi in the Sky: Counting, Thinking, and BeingJohn D. Barrow's Pi in the Sky is a profound and profoundly different exploration of the world of mathematics: where it comes from, what it is, and where it's going to take us if we follow it to the limit in our search for the ultimate meaning of the universe. Barrow begins by investigating whether math is a purely human invention inspired by our practical needs. Or is it something inherent in nature waiting to be discovered? In answering these
John D. Barrow's Pi in the Sky is a profound -- and profoundly different -- exploration of the world of mathematics: where it comes from, what it is, and where it's going to take us if we follow it to the limit in our search for the ultimate meaning of the universe. Barrow begins by investigating whether math is a purely human invention inspired by our practical needs. Or is it something inherent in nature waiting to be discovered? In answering these questions, Barrow provides a bridge between the usually irreconcilable worlds of mathematics and theology. Along the way, he treats us to a history of counting all over the world, from Egyptian hieroglyphics to logical friction, from number mysticism to Marxist mathematics. And he introduces us to a host of peculiar individuals who have thought some of the deepest and strangest thoughts that human minds have ever thought, from Lao-Tse to Robert Pirsig, Charles Darwin, and Umberto Eco. Barrow thus provides the historical framework and the intellectual tools necessary to an understanding of some of today's weightiest mathematical concepts.Binding Type: Paperback
Publisher: Back Bay Books
Published: 10/20/1993
ISBN: 9780316082594
Pages: 336
Weight: 0.97lbs
Size: 8.70h x 5.64w x 0.88d
Review Citations: Publishers Weekly 09/27/1993
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4.5 ★★★★★
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Product Reviews
★★★★★ 4
Good filter.
Great filter works well .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 5
Efficient long lasting. Great Value
Style: CF10735 Classic
These filters (my second one) has lasted me over two years with a little maintenance in between, (removing from time to time to vacuum and shake out the bigger debris.) They do a great job of keeping the cabin air really clean and fresh.
1) Over designed and built (Good thing) installed without effort.
2) Fit and finish is perfect for my 2016 Genesis G80
3) Carbon filter works well but after about six months it no longer absorbs orders, This is excepted especially when I have not swapped it out for over two years.
4) Great value and honestly I should be replacing these cabin filters out ever six months for efficiency and order control.
Note: When I decided to replace it the filter held up structurally as the day I installed it. The charcoal beads where all intact as well.
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Better than OEM, AC is so fresh now!
Style: CF10374 Classic, Style: CF10374 Classic
YEEEEEEAHHHHH!
This went straight from the mailman's hand to my 2010 Tacoma.
-Fits better than OEM and Replacements!
-AC smells so fresh now!
-Easy installation without any complications.
-Has a foam gasket around the filter that makes it fit like a glove, thight and secure!
-Very Well Made and quality materials.
Won't be returning this one, will actually buy it for the rest of my cars!
⭐️⭐️⭐️⭐️⭐️
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Reviewed in the United States on May 11, 2026
★★★★★ 5
**Perfect Fit for My 2008 Acura TL**
**Perfect Fit for My 2008 Acura TL**
I bought this cabin air filter as a replacement for my 2008 Acura TL, and it fit perfectly 👌. Installation was quick and easy—no issues at all. The build quality feels solid, and the activated carbon is a nice bonus for helping reduce odors and improve air quality inside the cabin.
For the price, it's a great value compared to dealership options. Highly recommend this if you're looking for a simple and reliable replacement!
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Reviewed in the United States on August 5, 2025
★★★★★ 5
Just what my vehicle's A/C, heat system needed ..
Good fit, and quality. Easy to change. You might be surprised how changing the cabin air filter can improve the airflow in your vehicles A/C, and heat system.
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Reviewed in the United States on April 13, 2026
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