Laplace's equation Updated 2025-07-16
Like a heat equation but for functions without time dependence, space-only.
TODO confirm: does the solution of the heat equation always converge to the solution of the Laplace equation as time tends to infinity?
In one dimension, the Laplace equation is boring as it is just a straight line since the second derivative must be 0. That also matches our intuition of the limit solution of the heat equation.
web.math.pmf.unizg.hr/~duje/tors/rankhist.html gives a list with Elkies (2006) on top with:
TODO why this non standard formulation?
Largey Brage Updated 2025-07-16
The outcome of Larry Page and Sergey Brin performing a Dragon Ball fusion dance.
Both of them attended Montessori education at some point. Interesting! Mentioned in a talk by Sergey and highlighted at The Google Story.
But in 2023 they were somewhat pulled back in by the AI race and competition with ChatGPT.[ref]
As The Google Story puts it about Largey:
Scholarship was not just emphasized in their homes; it was treasured.
Ciro Santilli likes that.
Bell Labs Holmdel Complex Updated 2025-07-16
101 Crawfords Corner Rd Holmdel, NJ 07733 USA
It started with radio research apparently, including Karl Guthe Jansky.
They had a smaller building first: youtu.be/BPq_ZyOvbsg?t=51 and in 1962 opened the large new building.
Video 1.
Holmdel 20th Anniversary by AT&T Tech Channel (1982)
Source.
Video 2.
N.J.’s historic Bell Labs complex brought back to life as Bell Works by nj.com (2022)
Source. Shows the renewed building after the Bell Labs Holmdel Complex closure.
Bell Labs Murray Hill Updated 2025-07-16
600 Mountain Ave bldg 5, New Providence, NJ 07974, United States.
Became headquarters in 1967,
Drone footage: www.youtube.com/watch?v=z0Ld2KFjaC8 Bell LABS Headquarters Murray Hill NJ in 4K Drone Flight by ESTOUCHFPV (2017)
Notable inventions made there:
Bell test experiment Updated 2025-07-16
Some of the most remarkable ones seem to be:
Ben Bernanke Updated 2025-07-16
Bessel function Updated 2025-07-16
Shows up when trying to solve 2D wave equation on a circular domain in polar coordinates with separation of variables, where we have to decompose the initial condition in termes of a fourier-Bessel series, exactly like the Fourier series appears when solving the wave equation in linear coordinates.
For the same fundamental reasons, also appears when calculating the Schrödinger equation solution for the hydrogen atom.
Biochemistry Updated 2025-07-16
iubmb.onlinelibrary.wiley.com/doi/full/10.1002/bmb.2002.494030030067 Surprises and revelations in biochemistry: 1950-2000 by Perry A. Frey (2006). This should be worth a read.
Bitcoin Core Updated 2025-07-16
Reference implementation?
Executables provided:
  • bitcoin-qt
Learn in public Updated 2025-07-16
This is the most extreme and final form of peer tutoring, it's natural final consequence given the Internet Age.
Caesium standard Updated 2025-07-16
Uses the frequency of the hyperfine structure of caesium-133 ground state, i.e spin up vs spin down of its valence electron , to define the second.
International System of Units definition of the second since 1967, because this is what atomic clocks use.
TODO why does this have more energy than the hyperfine split of the hydrogen line given that it is further from the nucleus?
Ciro Santilli was touched by this, and then watched several other documentaries by Curtis.
Part of Ciro asks if it is all a big conspiracy theory. But it feels and sounds so right.
Notably the part of the governments have lost all power to companies, and can't do anything meaningful anymore to actually represent the people, because globalization reduces the power of governments.
Chinese art Updated 2025-07-16
Their reference markup is incredibly overengineered, convoluted, and underdocumented, it is unbelivable!
Use the reference:
This is a fact.{{sfn|Schweber|1994|p=487}}
Define the reference:
===Sources===
{{refbegin|2|indent=yes}}
*{{Cite book|author-link=Silvan S. Schweber |title=QED and the Men Who Made It: Dyson, Feynman, Schwinger, and Tomonaga|last=Schweber|first=Silvan S.|location=Princeton|publisher=University Press|year=1994 |isbn=978-0-691-03327-3 |url=https://archive.org/details/qedmenwhomadeitd0000schw/page/492 |url-access=registration}}
{{refend}}
sfn is magic and matches the the author last name and date from the Cite, it is documented at: en.wikipedia.org/wiki/Template:Sfn
Unforutunately, if there are multiple duplicate Cites inline in the article, it will complain that there are multiple definitions, and you have to first factor out the article by replacing all those existing Cite with sfn, and keeping just one Cite at the bottom. What a pain...
You can also link to a specific page of the book, e.g. if it is a book is on Internet Archive Open Library with:
{{sfn|Murray|1997|p=[https://archive.org/details/supermenstory00murr/page/86 86]}}
For multiple pages should use pp= instead of p=. Does not seem to make much difference on the rendered output besides showing p. vs pp., but so be it:
{{sfn|Murray|1997|pp=[https://archive.org/details/supermenstory00murr/page/86 86-87]}}
Ciro Santilli feels that Ciro Santilli Myers-Briggs Type Indicator is much more random/hard to determine than the Big Five personality traits
Upon a quick look Ciro Santilli evaluates himself as INTJ.

There are unlisted articles, also show them or only show them.