Joseph O'Rourke

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Name Joseph O'Rourke
Member for 3 years
Seen 1 hour ago
Website
Location Smith College, U.S.
Age
Professor of Computer Science; Professor of Mathematics.
243

Questions
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Light rays bouncing in twisted tubes

dec 10 11 at 1:51 Joseph O'Rourke 43.1k●1●49●214

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Gaussian prime spirals

feb 17 at 1:03 Joseph O'Rourke 43.1k●1●49●214

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Light reflecting off Christmas-tree balls

dec 9 11 at 21:42 Joseph O'Rourke 43.1k●1●49●214

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Tying knots with reflecting lightrays

nov 14 at 1:37 Joseph O'Rourke 43.1k●1●49●214

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Topple height of randomly stacked bricks

dec 10 11 at 2:22 Joseph O'Rourke 43.1k●1●49●214

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Why are matrices ubiquitous but hypermatrices rare?

dec 6 at 20:14 Gil Kalai 10.7k●6●80●144

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Exploding primes

may 12 12 at 15:02 quid 12.9k●31●51

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Why are there 1024 Hamiltonian cycles on an icosahedron?

jan 16 11 at 17:38 ed-wynn 491●5●5

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Rolling a random walk on a sphere

dec 10 11 at 2:21 Joseph O'Rourke 43.1k●1●49●214

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412

Answers
votes newest views recent
30
An example of a beautiful proof that would be accessible at the high school level?
30
Gaussian prime spirals (2)
28
Interesting Applications of the Classical Stokes Theorem?
28
Refereeing a Paper
26
Light rays bouncing in twisted tubes (2)
26
Taking “Zooming in on a point of a graph” seriously.
22
Why do we use $\epsilon$ and $\delta$?
22
Trapped rays bouncing between two convex bodies
22
Modern Mathematical Achievements Accessible to Undergraduates
21
Reciprocals of Fibonacci numbers
20
How to/Can you get a PhD position when you need more experience first?
18
How to efficiently vacuum the house
17
What are some examples of journals that will accept undergraduate student research?
16
Physics and Church–Turing Thesis
16
Naive definition of surface area doesn’t work?
16
Interesting mathematical documentaries
16
Knot security (When to trust your life with a knot)
15
covering disks with smaller disks
15
More open problems
15
Nash embedding theorem for 2D manifolds
15
Magic trick based on deep mathematics
14
Is “Napkin conjecture” open ? (ORIGAMI)
14
Are there any very hard unknots?
14
Shape of snowflakes
14
Interesting and Accessible Topics in Graph Theory
14
What could be some potentially useful mathematical databases? (2)
13
A geometric Ramsey problem
12
Angle of a regular simplex
12
Missing document request
12
Examples of great mathematical writing
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