Ben Crowell

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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.


165 Answers

newest activity votes
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
10
Neutrinos vs. Photons: Who wins the race across the galaxy?
10
Explanation that air drag is proportional to speed or square speed?
8
Does relativistic mass have weight?
8
What is the current state of research in quantum gravity?
8
Will a football (soccer) diffract?
8
Physics Equations for Grad School / Physics GRE Prep
8
Is it possible for information to be transmitted faster than light by using a rigid pole?
7
Why is cold fusion considered bogus?
7
Does rotational energy have effect on gravity/metric?
7
Vacuum and repulsive gravity
7
Which direction does a pendulum swing in a car going through a ramp?
6
How can I determine whether the mass of an object is evenly distributed?
6
Would this be a metric?
6
What's the real fundamental definition of energy?
6
What is the logarithm of a kilometer? Is it a dimensionless number?
6
Why muonium is unstable?
5
Does more rain strike a vehicle while moving or while stopped (or neither)?
5
How are accelerated reference frames non-symmetrical?
5
Argument for proving Earth frame is non-inertial
5
Suns emission spectrum
5
Can the distance of a quasar be determined accurately?
5
What if the universe is rotating as a whole?
5
How useful is programming in physics?
5
Experimental evidence for parallel universes
5
How Can We Measure The Mass Of Particle?
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