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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
— 1382 members
— last activity Sep 25, 2026 03:33AM
A place to share memoirs, biographies, autobiographies (and maybe even fiction-based-in-reality) that you have enjoyed!
Science and Inquiry
— 4559 members
— last activity 17 hours, 2 min ago
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.
5,897 books
|
168 friends
379 books
|
4,938 friends
521 books
|
73 friends
136 books
|
4,988 friends
112 books
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1,053 friends
12 books
|
5,024 friends
92 books
|
221 friends
81 books
|
49 friends
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