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Slereah

22:10

50% more hyperboloid

bolbteppa

More spacetime cowbell

There's a discussion of Lobachevskian geometry in Russian math/physics books you're supposed to just know I can never get around to

Balarka Sen

Yeah haha

Slereah

All I know about Lobachevski I know from Tom Lehrer

" According to Lehrer, the song is "not intended as a slur on [Lobachevsky's] character" and the name was chosen "solely for prosodic reasons"."

bolbteppa

22:27

The square of the relative velocity between two particles in 3D which is used in qft scattering is of course the line element in a 3D Lobachevskii space of constant negative curvature

Slereah

That's the ol' integral on the future light cone

bolbteppa

$v_{rel} = \frac{\sqrt{(\mathbf{v}_1 - \mathbf{v}_2)^2 - (\mathbf{v}_1 \times \mathbf{v}_2)^2}}{1- \mathbf{v}_1 \cdot \mathbf{v}_2}$ for $\mathbf{v}_2 = \mathbf{v}_1 + d \mathbf{v}$

skullpatrol

23:16

-1

Q: If I name my child Mathematics, will I become the father of Mathematics?

Firstly, I'm a male. Secondly, this was a troll but I took it seriously: As a proper noun (the child), yes. As a (?) noun, no. I'm not a grammarian, so my reasoning maybe flawed. I am looking for the correct answer to this question. Edit: It was an audio, so ignore the capitalisation and p...