pinball1970's latest activity

Some surveillance vidoes of the earthquake response in Amori prefecture, Japan.

M 7.6 - 73 km ENE of Misawa, Japan https://earthquake.usgs.gov/earthquakes/eventpage/us6000rtdt/executive 2025-12-08 14:15:11 (UTC)...

https://cen.acs.org/pharmaceuticals/drug-discovery/vancomycin-derivative-targets-Gram-negative-bacteria/103/web/2025/12?sc=251211_sc_eng_...

Want something that grows fast? The number of Latin Squares: nxn matrices where numbers from 1 through n appear exactly once in each row...

It's why you're a multiverse.

I know. It was a quip.

Yes but you can start building the trees and playing the game. With Graham's number how do you start connecting the lines past three...

Some mathematics were in that category but became useful in physics. Hilbert spaces, Riemann geometry, Noether's work on symmetry. TREE...

Tongue in cheek. ;) I agree with you, it is a physics site, although I like appreciation of my photography efforts! A little bit of...

I really want to put that lightbulb under your post, but if I really don't understand what's going on I would be lying. So I'll give it...

Some mathematics is useful outside of mathematics, Engineering, Economics, physics for eg some has no practical use besides making...

It is bigger than TREE (3)!

There is a simpler sequence but along the same lines as the above. The rules seem a little specific and weird but they are easier to...

Here is the comparison of TREE (3) and Grahams number with some more info on Knuth notation, the enthusiasm of this guy is infectious.

The concept or Grahams number the question is, how many dimensions do I need before I have to make a square of one colour in a plane...