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The Banach–Tarski Paradox, for example, says you can, in principle, take a sphere and cut it up in such a way that you can reassemble it to form two identical spheres each the same size as the original one.
Memoirs and Biographies We Love
— 1379 members
— last activity Jul 27, 2026 09:44AM
A place to share memoirs, biographies, autobiographies (and maybe even fiction-based-in-reality) that you have enjoyed!
Science and Inquiry
— 4534 members
— last activity Aug 24, 2026 05:13PM
This Group explores scientific topics. We have an active monthly book club, as well as discussions on a variety of topics including science in the new ...more
Thomas’s 2025 Year in Books
Take a look at Thomas’s Year in Books, including some fun facts about their reading.
112 books
|
1,054 friends
5,855 books
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168 friends
458 books
|
73 friends
136 books
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4,989 friends
375 books
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4,939 friends
12 books
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5,025 friends
92 books
|
221 friends
81 books
|
49 friends
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