As of my last knowledge update in October 2021, there is no widely known individual or entity named Timofei Osipovsky. It's possible that he may not be a public figure, or he could have gained prominence after that time.
A skyrmion is a type of topological solitona stable, localized configuration of a field—found in certain magnetic materials. It is characterized by a nontrivial topology and can be thought of as a swirling configuration of spins, which are the magnetic moments of atoms. The concept of skyrmions originates from theoretical physics and was first proposed by British physicist Tony Skyrme in the 1960s, primarily in the context of particle physics.
Klein-Gordon equation by Ciro Santilli 40 Updated 2025-07-16
A relativistic version of the Schrödinger equation.
Correctly describes spin 0 particles.
The most memorable version of the equation can be written as shown at Section "Klein-Gordon equation in Einstein notation" with Einstein notation and Planck units:
Has some issues which are solved by the Dirac equation:
A government not supported by the majority cannot sustain itself without tyranny. They will eventually get rid of the current government and laws, even amend the constitution, if needed, to get their way. Thus it is impossible to maintain libertarianism by restricting voters or their power.
To achieve a libertarian country, either the majority of people in an existing country must be convinced of its merits, or libertarians must come together to form a new nation. And if the majority is libertarian, they will vote as such, maintaining the minarchy.
It is important to note that nowhere is discrimination against every category prohibited. Nearly all businesses would turn down certain types of customers. Only discrimination against certain protected characteristics, usually (but not always) immutable ones, irrelevant to the business, is prohibited.
In a democracy, the passing of a law prohibiting discrimination against a certain group requires the majority to be against said discrimination. This means that this group won't be discriminated against by most people anyway. Those that do will suffer losses from missed customers. People strongly opposed to the discrimination may even counter-discriminate, boycotting those that do.
In such a situation, it doesn't seem all that necessary to legally prohibit discrimination, especially to libertarians, who believe that no one can be forced to serve another for whatever reason, even "social justice".
The state takes a portion of your money and decides for you how it should be spent, imposes innumerable restrictions on you, and destroys your life if you disobey. On top of that, not only is the public sector less efficient than the private sector due to the lack of competition, private entities are burdened by unnecessary regulations. The justification given for this is that it improves the average well-being in several ways. But what if all the human effort spent on government is actually harmful? What if we're better off using it elsewhere if we want a more fair and prosperous society? That is what this FAQ aims to convice you of.
The Matochkin Strait is a waterway located in the Russian Arctic, separating the Novaya Zemlya archipelago into two main parts: Severny (Northern) Island to the west and Yuzhny (Southern) Island to the east. The strait connects the Barents Sea to the Kara Sea and serves as an important navigational route in the region. Its waters are characterized by polar conditions, with ice cover occurring for much of the year, making navigation challenging.
Quantum chromodynamics by Ciro Santilli 40 Updated 2025-07-16
Video 1. Source. Some decent visualizations of how the field lines don't expand out like they do in electromagnetism, suggesting color confinement.
Video 2.
PHYS 485 Lecture 6: Feynman Diagrams by Roger Moore (2016)
Source. Despite the title, this is mostly about QCD.
Science software refers to a range of software tools and applications designed to assist in scientific research, data analysis, simulations, modeling, and various other tasks within scientific disciplines. These tools are used by researchers, scientists, and engineers to facilitate their work in understanding phenomena, processing data, and performing calculations. Here are some categories of science software: 1. **Data Analysis Software**: These tools help researchers analyze data sets, perform statistical analysis, and visualize data.
MacVector is a software application designed for the analysis and visualization of DNA, RNA, and protein sequences. It is primarily used in molecular biology and bioinformatics for tasks such as sequence alignment, primer design, cloning, and the creation of plasmid maps. MacVector provides a user-friendly interface and various tools that facilitate the processing and interpretation of biological data. Some key features of MacVector include: 1. **Sequence Analysis**: Users can analyze nucleotide and protein sequences with various algorithms and methods.
Nikolay Basov (1922-2001) was a prominent Soviet physicist known for his significant contributions to the fields of quantum electronics and laser technology. He, along with Alexander Prokhorov, was awarded the Nobel Prize in Physics in 1964 for their work on the theory and application of masers and lasers, which are devices that amplify electromagnetic waves.
Nishtala Appala Narasimham (also known as N. A. Narasimham) is an Indian political figure and businessman known for his contributions to society and politics in Andhra Pradesh. He is often recognized for his involvement in local governance, social work, and business initiatives. His name may be associated with various programs or initiatives aimed at community development, empowerment, and overall welfare in his region.
William de Wiveleslie Abney (1847–1932) was a British chemist and photographer known for his significant contributions to the field of photography, particularly in the study of light and color. He is best known for his work on photographic processes and the development of the "Abney method" of measuring the color and quality of light.

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