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Chern-Simons
  • Member for 5 years, 1 month
  • Last seen more than a month ago
  • United Kingdom
12 votes
1 answer
658 views

What is the purpose of the ink delivery disks found in most rollerball pens [closed]

11 votes
6 answers
2k views

Does the logarithm of a non-dimensionless quantity make any sense?

5 votes
4 answers
7k views

How is it possible for the induced emf to take negative values in Faraday's Law of induction?

4 votes
1 answer
698 views

Confused about the differential of a quantity

4 votes
2 answers
330 views

Why is Gauss' Law for Electric Fields still applicable when $\vec{E}=kr^3\hat{r}$?

3 votes
1 answer
113 views

Gram-Schmidt Orthogonalisation for scalars

3 votes
2 answers
318 views

The Vertical Launch of a Rocket

3 votes
3 answers
877 views

Newton's Second Law in vertical launch of a rocket

2 votes
2 answers
96 views

$\nabla \times \bf{u} \neq 0$ but $\oint_{c} \bf{u} \cdot \textit{d}r \textit{=0}$?

2 votes
1 answer
2k views

Spherical coordinates and rotations of axes

2 votes
1 answer
212 views

Tensor Differentiation

2 votes
2 answers
517 views

Derivation of the geodesic equations

2 votes
0 answers
212 views

Action & Energy-Momentum Tensor for Matter Fields

2 votes
1 answer
678 views

Divergence of a tensor

2 votes
1 answer
232 views

Schwarzschild Black Holes

2 votes
0 answers
65 views

Infinite sum of transmitted parallel light fields

2 votes
0 answers
171 views

Confused about the gauge transformation of the amplitude tensor for gravitational waves

2 votes
1 answer
187 views

In Helium, why does more tightly bound mean the electrons are further apart?

1 vote
1 answer
66 views

Conditions on $\phi$ and $\boldsymbol{A}$ for when $\boldsymbol{B}$ is uniform

1 vote
0 answers
52 views

Why is the relation between voltage ratio and frequency a linear one in a lumped transition line?

1 vote
3 answers
182 views

Definition of torque in the (possibly accelerating) centre of mass frame

1 vote
2 answers
171 views

$\frac{0}{0}$ from Curvilinear Dirac Delta

1 vote
1 answer
358 views

Why does $dH=TdS+VdP$ hold even if the process is adiabatic and irreversible?

1 vote
1 answer
305 views

What happens at $V=Nb$ in the Van der Waals equation (i.e. becomes divergent)?

1 vote
1 answer
91 views

Imaging aberration

1 vote
0 answers
39 views

Mathematical expression for refraction within a spherical lens

1 vote
1 answer
78 views

How to distinguish between $\pi$ neutrinos and $K$ neutrinos?

1 vote
0 answers
83 views

Validity of the arclength definition of the four-velocity vector

1 vote
1 answer
1k views

Stokes's theorem in tensor field

1 vote
3 answers
270 views

Magnitude of vector quantities