Physics
Willie Wong's user avatar
Willie Wong's user avatar
Willie Wong's user avatar
Willie Wong
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Mathematician

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All Questions Answers
Score Newest
answer
31
What is known about the topological structure of spacetime?
Dec 13, 2010
answer
31
What is the logarithm of a kilometer? Is it a dimensionless number?
Aug 2, 2011
answer
31
Can a black hole be formed by electromagnetic radiation?
Aug 28, 2011
answer
29
Mathematically-oriented Treatment of General Relativity
Sep 23, 2011
answer
20
How is it possible for astronomers to see something 13B light years away?
Jul 2, 2011
answer
20
Importance of Killing vector fields
Oct 15, 2012
answer
17
Why do objects follow geodesics in spacetime?
Apr 25, 2012
answer
15
Nature of spacetime 4-vector and tangent space?
Jun 17, 2011
answer
14
Orientability of spacetime
Aug 31, 2011
answer
13
Why is an Aircraft Runway NOT like a Teaspoon?
Jul 12, 2012
Top Meta posts
1
2
7
Is a shopping advice request off-topic in any case?
6
How can I find recent changes, or what does active mean?
4
Posting an answer after a question is closed and migrated?
Top network posts
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544
Does there exist a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
262
Open problems in General Relativity
160
What's the best way to write e-mail addresses?
147
Does there exist a bijection of $\mathbb{R}^n$ to itself such that the forward map is connected but the inverse is not?
130
Mathematical precise definition of a PDE being elliptic, parabolic or hyperbolic

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