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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
— 1370 members
— last activity May 11, 2026 07:31AM
A place to share memoirs, biographies, autobiographies (and maybe even fiction-based-in-reality) that you have enjoyed!
Science and Inquiry
— 4511 members
— last activity 2 hours, 23 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.
5,758 books
|
168 friends
112 books
|
1,057 friends
443 books
|
73 friends
12 books
|
5,030 friends
373 books
|
4,947 friends
136 books
|
4,997 friends
93 books
|
221 friends
73 books
|
49 friends
More friends…
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