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Mark Eichenlaub
Baltimore, MD
arcsecond.wordpress.com
Age: 28
I'm a physics graduate student.
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Top Questions
59
votes
What software programs are used to draw physics diagrams, and what are their relative merits?
software
asked Nov 9 '10 at 5:27
physics.stackexchange.com
36
votes
How long a straw could Superman use?
fluid-dynamics
pressure
asked Dec 21 '10 at 4:54
physics.stackexchange.com
33
votes
Why is the Earth so fat?
rotational-dynamics
geophysics
newtonian-gravity
centrifugal-force
equilibrium
asked Apr 5 '11 at 8:13
physics.stackexchange.com
22
votes
A No-Nonsense Introduction to Quantum Field Theory
quantum-field-theory
books
asked Jul 5 '11 at 9:31
physics.stackexchange.com
21
votes
Why is Euclidean geometry scale-invariant?
euclidean-geometry
asked Feb 21 '11 at 20:05
math.stackexchange.com
19
votes
Will a ball slide down a lumpy hill over the same path it rolls down the hill?
classical-mechanics
asked Nov 13 '10 at 19:00
physics.stackexchange.com
17
votes
Is there an intuitive reason the brachistochrone and the tautochrone are the same curve?
newtonian-mechanics
brachistochrone-problem
asked Nov 11 '11 at 1:55
physics.stackexchange.com
17
votes
What am I doing when I separate the variables of a differential equation?
calculus
differential-equations
asked Mar 16 '11 at 17:03
math.stackexchange.com
17
votes
Does the US ban high-gas-mileage cars?
united-states
cars
government-policy
asked May 7 '12 at 21:54
skeptics.stackexchange.com
16
votes
Why does the fundamental mode of a recorder disappear when you blow harder?
fluid-dynamics
acoustics
asked Sep 15 '11 at 16:58
physics.stackexchange.com
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Top Answers
129
Unusual 5th grade problem, how to solve it
math.stackexchange.com
119
A mirror flips left and right, but not up and down
physics.stackexchange.com
42
What is the fallacy in this infinite motion machine?
physics.stackexchange.com
39
Fourier transform for dummies
math.stackexchange.com
37
How to overcome the fact that I can't write?
writers.stackexchange.com
35
Why doesn't the Moon fall upon Earth?
physics.stackexchange.com
34
Why does the atmosphere rotate along with the earth?
physics.stackexchange.com
27
What exactly is heat?
physics.stackexchange.com
23
How efficient is an electric heater?
physics.stackexchange.com
20
Fourier transformation in nature/natural physics?
physics.stackexchange.com
18
An example which contradict to Newton's 3rd law?
physics.stackexchange.com
16
How Does Mass Leave the Body When you Lose Weight?
physics.stackexchange.com
16
Why do we say that the earth moves around the sun?
physics.stackexchange.com
16
Why the Principle of Least Action?
physics.stackexchange.com
15
What is the difference between implicit and explicit time dependence e.g. $\frac{\partial \rho}{\partial t}$ and $\frac{d \rho} {dt}$?
physics.stackexchange.com
15
How to name the characters of your story?
writers.stackexchange.com
14
How does non-commutativity lead to uncertainty?
physics.stackexchange.com
14
Can pockets of air exist underwater?
physics.stackexchange.com
13
List of freely available physics books
physics.stackexchange.com
12
Why Circle encloses largest Area?
math.stackexchange.com
12
Hamilton's Principle
physics.stackexchange.com
12
Rope tension question
physics.stackexchange.com
12
Rotation angle of a giant lily when a child crawls on its rim
physics.stackexchange.com
12
Eyes open under water
physics.stackexchange.com
11
Books that every physicist should read
physics.stackexchange.com
11
Deriving the speed of the propagation of a change in the Electromagnetic Field from Maxwell's Equations
physics.stackexchange.com
11
Why is the speed of light defined as 299792458 m/s?
physics.stackexchange.com
10
What is an intuitive explanation for $\operatorname{div} \operatorname{curl} F = 0$?
math.stackexchange.com
10
Is it possible to blur an image in such way that a person with sight problems could see it sharp?
physics.stackexchange.com
10
When displacement isn't possible
physics.stackexchange.com
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