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martin
  • Member for 8 years, 4 months
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281 answers
978 votes
310k views
1k bookmarks
Examples of common false beliefs in mathematics
89 answers
410 votes
139k views
682 bookmarks
Video lectures of mathematics courses available online for free
16 answers
409 votes
58k views
199 bookmarks
Why do roots of polynomials tend to have absolute value close to 1?
79 answers
380 votes
174k views
473 bookmarks
Proofs without words
110 answers
353 votes
85k views
377 bookmarks
Not especially famous, long-open problems which anyone can understand
51 answers
340 votes
111k views
287 bookmarks
Widely accepted mathematical results that were later shown to be wrong?
34 answers
307 votes
82k views
392 bookmarks
Why is a topology made up of 'open' sets?
7 answers
287 votes
19k views
133 bookmarks
Polynomial representing all nonnegative integers
34 answers
280 votes
34k views
218 bookmarks
Which journals publish expository work?
45 answers
265 votes
104k views
250 bookmarks
Examples of unexpected mathematical images
29 answers
251 votes
86k views
314 bookmarks
Mathematical games interesting to both you and a 5+-year-old child
9 answers
226 votes
23k views
77 bookmarks
John Nash's Mathematical Legacy
14 answers
219 votes
69k views
102 bookmarks
Have any long-suspected irrational numbers turned out to be rational?
83 answers
216 votes
38k views
230 bookmarks
Your favorite surprising connections in mathematics
140 answers
215 votes
46k views
310 bookmarks
Fundamental Examples
4 answers
213 votes
13k views
107 bookmarks
Is $\mathbb R^3$ the square of some topological space?
8 answers
201 votes
28k views
191 bookmarks
How to memorise (understand) Nakayama's lemma and its corollaries?
25 answers
191 votes
44k views
116 bookmarks
The most outrageous (or ridiculous) conjectures in mathematics
47 answers
181 votes
97k views
215 bookmarks
Magic trick based on deep mathematics
94 answers
179 votes
99k views
263 bookmarks
Famous mathematical quotes
58 answers
177 votes
37k views
148 bookmarks
Examples of eventual counterexamples
61 answers
174 votes
86k views
231 bookmarks
Interesting mathematical documentaries
35 answers
167 votes
33k views
128 bookmarks
Proposals for polymath projects
39 answers
167 votes
39k views
130 bookmarks
Most harmful heuristic?
50 answers
162 votes
46k views
99 bookmarks
17 camels trick
13 answers
162 votes
43k views
128 bookmarks
Knuth's intuition that Goldbach might be unprovable
8 answers
161 votes
76k views
115 bookmarks
The "Dzhanibekov effect" - an exercise in mechanics or fiction? Explain mathematically a video from a space station
2 answers
155 votes
58k views
106 bookmarks
Estimating the size of solutions of a diophantine equation
28 answers
151 votes
26k views
137 bookmarks
How To Present Mathematics To Non-Mathematicians?
52 answers
149 votes
22k views
121 bookmarks
Experimental mathematics leading to major advances
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