Visualization in research refers to the use of graphical representations to explore, analyze, and communicate data and information. It involves the creation of visual formats such as charts, graphs, maps, and diagrams to help researchers and audiences understand complex data more easily and identify patterns, trends, and relationships. Key aspects of research visualization include: 1. **Data Representation**: Visualization transforms raw data into visual formats, making it easier to observe and interpret.
Signals Intelligence (SIGINT) units and formations are specialized military or intelligence organizations that focus on the collection, analysis, and exploitation of electronic signals and communications. SIGINT is a category of intelligence derived from monitoring communications and electronic signals, which can include a wide range of sources such as: 1. **Communications Intelligence (COMINT)**: This involves intercepting and analyzing voice and data communications, such as phone calls, emails, and other forms of electronic communication.
Kilometre-zero markers, often referred to as "zero kilometer markers," are reference points that indicate the starting point of a road or transportation network, from which distances to other locations are measured. These markers are typically found in various forms, such as plaques or stone pillars, and are commonly located in significant locations within a city, country, or along major highways. The primary purpose of kilometre-zero markers is to provide a standardized point from which distances can be calculated.
Ramsden surveying instruments are precision optical devices used in surveying and measurement applications. The term generally refers to instruments that utilize the Ramsden eyepiece, which is a type of optical eyepiece designed to improve viewing accuracy and clarity in telescopes and surveying instruments. The Ramsden eyepiece typically consists of two convex lenses that work together to focus light more effectively and provide a wide field of view.
The Rice index, also known as the Rice entropy or Rice metric, is a measure used in information theory, specifically in the context of entropies of random variables. It is named after the American information theorist Hartley Rice. The Rice index contributes to assessing the diversity or distribution of information content within a dataset. In more general terms, the Rice index is often used to evaluate how evenly a particular resource or attribute is distributed across different classes or categories.
Smart Voting is a term that can refer to various concepts depending on the context in which it is used. Here are a few interpretations: 1. **Political Context**: In the realm of politics, Smart Voting often refers to strategies and tools aimed at optimizing voting outcomes, particularly in elections. This can involve using data analysis to understand voter preferences and organize support for certain candidates or policies.
Dial-a-Joke is a service that allows individuals to call a specific telephone number to hear a recorded joke. These services became popular in the 1970s and 1980s, and they provided users with a quick and easy way to enjoy a laugh, often featuring a selection of different jokes or a new joke each day. Some Dial-a-Joke services were operated by individuals, while others were structured as businesses.
The Artin L-function is a generalization of the classical Riemann zeta function and is an important object in number theory and arithmetic geometry, particularly in the context of class field theory and algebraic number theory. It is associated with a representations of a Galois group, collections of characters, and the study of L-functions in the context of number fields. ### Definition 1.
Intensive and extensive properties are classifications of physical properties of matter that help in understanding the behavior and characteristics of different substances. Here's a brief overview of each: ### Intensive Properties Intensive properties are those that do not depend on the amount of substance present. These properties are intrinsic to the material and are characteristic of the substance itself. Some common examples include: - **Temperature**: The temperature of a substance does not change regardless of the size of the sample.
Rotation distance, also known as **tree rotation distance**, is a concept from computational biology and bioinformatics that quantifies the minimum number of rotation operations required to transform one binary tree into another. A binary tree can be defined as a tree structure where each node has at most two children referred to as the left and right child. A rotation operation involves changing the structure of the tree without altering its nodes.
In topology, triangulation refers to the process of dividing a topological space into simpler pieces called simplices, specifically triangles (in two dimensions), tetrahedra (in three dimensions), or their higher-dimensional analogues. This technique is often employed in the study of geometric structures and algebraic topology.
Ore's theorem is a result in graph theory concerning the conditions under which a graph is Hamiltonian, meaning that it contains a Hamiltonian circuit (a cycle that visits every vertex exactly once).
Stefan flow refers to a type of fluid flow that occurs under the influence of a temperature gradient, particularly in non-Newtonian fluids or when phase changes are involved, such as melting or solidification. The term is often associated with the Stefan problem, which was formulated to describe the heat transfer associated with phase changes, such as the melting of ice or the solidification of metals. In the context of the Stefan problem, the Stefan flow describes how the interface between two phases (e.g.
The sieving coefficient, often used in the context of kidney function and renal physiology, refers to a measure that indicates how selectively a substance can be filtered through the kidney's glomerulus. It quantitatively assesses the permeability of the glomerular membrane to various solutes, helping to determine how well certain substances can pass from the blood into the urine.
Termite refers to a type of social insect belonging to the order Blattodea, which also includes cockroaches. Termites are primarily known for their role in breaking down cellulose, a complex carbohydrate found in wood, plants, and other organic matter. They are often found in colonies and can vary in size, with some colonies containing millions of individuals. Termites play a significant ecological role by recycling nutrients and contributing to soil health.
Valentin Turchin was a prominent Soviet and American computer scientist, known for his work in artificial intelligence, cybernetics, and the philosophy of science. Born on March 15, 1931, Turchin made significant contributions to the field, particularly through his development of the concept of "self-organization" in complex systems. He also worked on the formalization of the idea of "intelligence" within machines and explored the implications of computing and intelligence in society.
Based God by Ciro Santilli 40 Updated 2025-07-16
Someone who is not a pussy.
Someone once called Ciro Santilli that: archive.is/W1ocv. It's an overstatement, considering that Ciro's parents have some money. Not infinite. But still. Changes everything. A real Based God is someone like Charles Bukowski, who had to work decades at the post office.
Companies are getting too much power to distort regulations and destroy privacy.
Taxes pay for the physical car roads, so why shouldn't they also pay for the "online roads" of today?
Other less simple ones that might also be feasible:
All of them should have strong privacy enabled by default: end-to-end encryption, logless, etc. Governments are not going to like this part.
And then if you ever forget a password or lose a multi-factor authentication token, you can just go to an ID center with your ID to recover it.
Firstly, in 2012, while he was at École Polytechnique, Ciro Santilli was introduced to LaTeX (thank God for French mathematical obsession), and his mind was blown:
Ha, so I can write my own books, and so can anyone, for free?
he though. Why isn't everyone doing that!
One particular event stood out: Ciro made a small change to his teacher's course material, who blessed be him (dude's a legend, Ciro just noticed he has some Chinese publications with another French dude, e.g. www.amazon.co.uk/高效算法-应试与提高必修128例-克里斯托弗-Christoph-Durr/dp/B078SJQPVK "High-efficiency algorithm competitions 128 examples", did he write it the Chinese himself?? Must be of course to complement the notoriously low French professor salaries), made it available, and then Ciro gave him back the .tex file. Ciro was just a bit worried about how the teacher would be able to tell what he had changed in the file to validate the change. The teacher just said of course, "no problem, I'll just use diff". Ciro had never heard of diff. Let alone Git of course, though yes, this was a bit early in Git's history version control systems had been around since forever of course. This was 2011 or 2012, about 4 or 5 years into a superior education curricula with various courses involving computers, some requiring quite a lot of "fill these empty functions" style programming. Education is a joke. Anyways, this was a prelude to exactly what Ciro wanted to do in OurBigBook.com. This might have been the one actually: webia.lip6.fr/~durrc/Iut/Notes580.pdf
Not long afterwards, Ciro started playing with Linux. Until then, Ciro had had some contacts with the mysterious operating system at university, and was a bit puzzled what the point of it was! He clearly remembers:
University should be forced to use only open source software and hardware in undergrad teaching courses by law BTW.
Then came an Ubuntu live disk on his own machine, and finally a measly 40GB dual book partition in a Microsoft Windows machine on a laptop. At first, it took a lot of time to learn all the crazy new terminal stuff! Yes, at this point, Ubuntu was already usable enough without the terminal, an accomplishment actually. But as a programmer, Ciro felt obliged to learn. Many hours were spent reading man pages at the library. But it all just felt so right, and sometimes powerful... true wizardry.
And ten years later, Ciro was seriously considering buying a computer without Windows pre-installed. He had not used Windows a single tie on a personal machine even once in those ten years!
Finally, to finish things off Ciro found two websites that changed his life forever, and made be believe that there was an alternative: Stack Overflow and GitHub.
The brutal openness of it all. The raw high quality content. Ugliness and uselessness too no doubt. But definitely spark in a sea of darkness.

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