Ben Crowell

6,192 reputation

1334

bio	website	lightandmatter.com
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visits	member for	1 year, 10 months
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I teach physics at Fullerton College, a community college in Southern California. I have an undergrad degree in math and physics from Berkeley and a PhD in physics from Yale. Back when I was doing research, my field was experimental low-energy nuclear physics.

	6,192 reputation	bio	website	lightandmatter.com	visits	member for	1 year, 10 months
1334 badges		location			seen	1 min ago

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173 Answers

votes activity newest

24	If photons have no mass, how can they have momentum?
21	Is it 11% hotter today than it was yesterday?
13	The Pioneer anomaly finally explained?
11	Does entanglement not immediately contradict the theory of special relativity?
11	Classical results proved using quantum mechanics

6,192 Reputation

+10	If light rays obey to the wave equation, why can they be thought as straight lines?
+10	Is Mach's Principle Wrong?
+5	Best current bounds on nonconservation of momentum?
+50	From where (in space-time) does Hawking radiation originate?

18 Questions

votes activity newest

23	Overcharging a black hole
19	Is gecko-like friction Coulombic? What is the highest known Coulombic $\mu_s$ for any combination of surfaces?
14	History of interpretation of Newton's first law
14	a priori validity of $W=\int Fdx$ in relativity?
10	Decay of massless particles

191 Tags

102 general-relativity × 39	43 energy × 7
67 special-relativity × 26	37 gravity × 11
52 quantum-mechanics × 19	36 photons × 3
49 mass × 9	34 electromagnetic-radiation × 6
48 cosmology × 13	31 newtonian-mechanics × 15

16 Accounts

	Physics	6,192 rep	1334
$Mathematics Stack Exchange$	Mathematics	2,440 rep	625
$TeX - LaTeX Stack Exchange$	TeX - LaTeX	1,444 rep	213
	Skeptics	424 rep	38
	The Great Outdoors	400 rep	6