The amount of detail in which he remembers all that happened is astounding. Not too different from the Murray Gell-Mann interview in that aspect.
Hans Bethe by Ciro Santilli 37 Updated 2025-07-16
Head of the theoretical division at the Los Alamos Laboratory during the Manhattan Project.
Richard Feynman was working under him there, and was promoted to team lead by him because Richard impressed Hans.
He was also the person under which Freeman Dyson was originally under when he moved from the United Kingdom to the United States.
And Hans also impressed Feynman, both were problem solvers, and liked solving mental arithmetic and numerical analysis.
This relationship is what brought Feynman to Cornell University after World War II, Hans' institution, which is where Feynman did the main part of his Nobel prize winning work on quantum electrodynamics.
Hans must have been the perfect PhD advisor. He's always smiling, and he seemed so approachable. And he was incredibly capable, notably in his calculation skills, which were much more important in those pre-computer days.
Henri Becquerel by Ciro Santilli 37 Updated 2025-07-16
WTF is wrong with that family???
The Morphy number is a concept in the field of chess, specifically related to the analysis and evaluation of chess positions. It is named after the famous 19th-century American chess player Paul Morphy, known for his tactical prowess and ability to capitalize on the weaknesses of his opponents. The Morphy number measures the effectiveness of a piece's placement and its ability to contribute to a player's position.
Leo Szilard by Ciro Santilli 37 Updated 2025-07-16
Video 1.
Leo Szilard: The Genius Behind the Bomb
. Source. 1992. TODO an external link to the production? Producers credited at end: Helen Weiss and Alain Jehlen. As indicated at: archive.org/details/TheGeniusBehindtheBomb it was apparently produced by WGBH, public radio station from Boston.
Pavle Savić could refer to a specific individual, and without more context, it's difficult to provide a precise answer. There might be several notable individuals with that name.
Pontryagin's Maximum Principle is a fundamental result in optimal control theory that provides necessary conditions for optimality in control problems. Formulated by the Soviet mathematician Lev Pontryagin in the 1950s, the principle is applied when aiming to maximize (or minimize) a given performance criterion over a system described by a set of differential equations.
Adaptive Coordinate Descent (ACD) is an optimization algorithm that is used to minimize a loss function in high-dimensional spaces. It is a variant of the coordinate descent method that incorporates adaptive features to improve performance, particularly in situations where the gradients can vary significantly in scale and direction.
Evolutionary algorithms (EAs) are a class of optimization algorithms inspired by the principles of natural evolution and selection. These algorithms are used to solve complex optimization problems by iteratively improving a population of candidate solutions based on ideas borrowed from biological evolution, such as selection, crossover (recombination), and mutation. ### Key Components of Evolutionary Algorithms 1. **Population**: A set of candidate solutions to the optimization problem.
Evolutionary programming (EP) is a type of evolutionary algorithm that is inspired by the process of natural evolution. It is a method used for solving optimization problems by mimicking the mechanisms of biological evolution, such as selection, mutation, and reproduction. The key characteristics and components of evolutionary programming include: 1. **Population**: EP operates on a population of candidate solutions (individuals). Each individual represents a potential solution to the optimization problem.
Basin-hopping is a global optimization technique used to find the minimum of a function that may have many local minima. It is particularly useful for problems where the objective function is complex, non-convex, or high-dimensional. The method combines two key components: local minimization and random sampling. Here's a brief overview of how basin-hopping works: 1. **Initial Guess**: The algorithm starts with an initial point in the search space.
The Bregman Lagrangian is a concept used in the field of optimization and variational analysis, particularly in connection with Bregman divergences. A Bregman divergence is a measure of difference between two points based on a convex function.
Cunningham's Rule is a guideline in the field of project management and scheduling that relates to the estimation of time required to complete tasks or projects. While it isn’t as widely known as other project management principles, it refers to a method for adjusting the estimated duration of tasks based on their complexity or difficulty.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact