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Description
The Fourth Dimension: Toward a Geometry of Higher RealityThis is the definitive popular exploration of what the fourth dimension means, both physically and spiritually. Mathematician and science fiction novelist Rudy Rucker takes readers on a guided tour of a higher reality that explores what the fourth dimension is and what it has meant to generations of thinkers. The exciting and challenging journey is enhanced by more than 200 illustrations and a host of puzzles and problems (with answers). "This is an
This is the definitive popular exploration of what the fourth dimension means, both physically and spiritually. Mathematician and science-fiction novelist Rudy Rucker takes readers on a guided tour of a higher reality that explores what the fourth dimension is and what it has meant to generations of thinkers. The exciting and challenging journey is enhanced by more than 200 illustrations and a host of puzzles and problems (with answers)."This is an invigorating book, a short but spirited slalom for the mind." -- Timothy Ferris, The New York Times Book Review
"Highly readable. One is reminded of the breadth and depth of Hofstadter's G del, Escher, Bach." -- Science
"Anyone with even a minimal interest in mathematics and fantasy will find The Fourth Dimension informative and mind-dazzling... Rucker] plunges into spaces above three with a zest and energy that is breathtaking." -- Martin Gardner
"Those who think the fourth dimension is nothing but time should be encouraged to read The Fourth Dimension, along with anyone else who feels like opening the hinges of his mind and letting in a bit of fresh air." -- John Sladek, Washington Post Book World
"A mine of mathematical insights and a thoroughly satisfying read." -- Paul Davies, Nature Magazine
Binding Type: Paperback
Publisher: Dover Publications
Published: 09/17/2014
ISBN: 9780486779782
Pages: 240
Weight: 0.65lbs
Size: 8.90h x 5.90w x 0.60d
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
A must for tire repair
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Beats using a drill bit, this really is a must for tire plug, patch repair
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Reviewed in the United States on June 2, 2026
★★★★★ 5
These tire repair reamers work great for plug/other type repairs
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These tire repair reamers work great for plug/other type repairs. Gone are the days of manually fighting a hand reamer through rough rubber. This is an efficient, neat and clean way to prepare a tire for the repair. Will purchase again as needed.
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Reviewed in the United States on November 27, 2025
★★★★★ 4
Got what I paid for.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
I dropped my drill with the bit installed. It broke quite easily. It was a relatively inexpensive so I can't complain. A higher quality harder metal would have earned 5 stars.
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Reviewed in the United States on February 17, 2025
★★★★★ 5
Great product
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These bits are great. We use them every day e when patching or plugging tires. Having multiple sizes helps us match the bit to the patch we use.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Easy on the hands
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These make it much easier to ream tires that have been punctured. It takes the stress off of your hands, forearms and elbows especially when you’re plugging higher ply tires.
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Reviewed in the United States on November 14, 2025