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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
NEEDDDDDDDDDD
Scent: North Bondi, Size: 0.34 Fl Oz (Pack of 1)
Bought the OUAI leave in conditioner and LOVED the smell. This smells the exact same and I get the most compliments! I don't think the scent last all day but still worth the buy. Easy to spray, doesn't leak, good size bottle.
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Reviewed in the United States on August 21, 2025
★★★★★ 5
My Favorite
Scent: North Bondi, Size: 1.7 Fl Oz (Pack of 1)
Great, fresh fragrance for every day.
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Reviewed in the United States on April 2, 2026
★★★★★ 3
Smells cheap, but the underlying scent is wonderful
Scent: North Bondi, Size: 0.34 Fl Oz (Pack of 1)
I do like the scent but there is a cheap alcohol scent that lingers.
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Reviewed in the United States on December 8, 2025
★★★★★ 5
Every bathroom needs these!
Style: Sprays + Candle
I received two small bottles of this last Christmas as a stocking stuffer from a friend. My husband and I used them and were quite impressed. I ordered three more bottles for each bathroom. I initially thought these were more of a "joke" for guests visiting but soon realized these are the real deal. My husband isn't much into these type of things and leaves them up to me but now he tells me when I need to order more. They make the bathroom smells so fresh and the scent lasts a long time covering up any unpleasant odors. I spray them regardless after I clean our bathrooms as they make my bathrooms feel so "clean" and they are a decent size. No leaking....just a simple couple of sprays and the bathrooms smells great. I love all of the products from this line and use them frequently. Nice seller too. Ships quickly and good packaging. These are definitely worth buying!
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Reviewed in the United States on August 3, 2025
★★★★★ 5
Instant fresh smell
Style: Sprays + Candle
I bought this bc a friend of mine had the tiny bottle for her cat. It smells great. I have three inside dogs. This is a great spray to use for your home to smell fresh instantly. Also I like the candle too.
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Reviewed in the United States on June 9, 2025