The "Encyclopedia of the Philosophical Sciences" is a work by the German philosopher G.W.F. Hegel, first published in 1817. It serves as a comprehensive overview of Hegel's philosophical system, presenting his ideas on various fields of philosophy, including logic, nature, and spirit. The work is divided into three main sections: 1. **Logic**: This part deals with the nature of thought and knowledge, exploring concepts such as being, nothingness, and becoming.
Romanian logicians refers to a group of philosophers and mathematicians from Romania who have made significant contributions to the fields of logic, mathematics, and philosophy. Romania has a rich intellectual tradition in these areas, producing notable figures who have influenced both national and international discourse. Some well-known Romanian logicians include: 1. **Gheorghe Toma**: Known for contributions to mathematical logic and the foundations of mathematics.
English logicians are philosophers and scholars from England who have made significant contributions to the field of logic, particularly during the 19th and 20th centuries. These logicians have greatly influenced the development of formal logic, philosophical logic, and related areas such as linguistics, mathematics, and the philosophy of language.
Debranding is a marketing strategy that involves the removal or reduction of branding elements from a product or service in order to shift focus away from the brand itself. This approach can be utilized for various reasons, including: 1. **Consumer Perception**: By de-emphasizing brand labels and logos, companies may aim to create a more understated or minimalist image, appealing to consumers who prefer products that are less about brand prestige.
Digital on-screen graphics (OSG), often referred to as on-screen graphics or simply overlays, are visual elements that are displayed on the screen during a broadcast, livestream, or digital presentation. These graphics can include various types of information, such as: 1. **Text**: Titles, captions, subtitles, names, and other textual information relevant to the content being displayed.
A "Mon" (紋) is a traditional Japanese emblem or crest that is commonly associated with families, clans, and organizations. The term "mon" refers to a stylized design or symbol that represents a person's lineage, family heritage, or affiliation with a particular group. These emblems can feature various shapes, patterns, and motifs, often inspired by nature, animals, or historical events.
The Barrett–Crane model is a theoretical framework in quantum gravity, specifically within the context of loop quantum gravity. It was introduced by researchers John Barrett and Louis Crane in the mid-1990s as an attempt to define a quantum theory of geometry. The model is based on a combinatorial approach to spacetime, where the structure of space is represented using a spin network, a key concept in loop quantum gravity.
A closed timelike curve (CTC) is a concept from physics, specifically in the context of general relativity and theoretical physics. It refers to a type of path through spacetime that loops back on itself, allowing an object or observer to return to an earlier point in time.
Los Alamos National Security, LLC (LANS) is a private entity formed to manage and operate Los Alamos National Laboratory (LANL) in New Mexico, which is one of the key laboratories for the United States Department of Energy (DOE). Established in 2006, LANS is a partnership between several organizations, including University of California, Bechtel, and others. The laboratory plays a critical role in national security, scientific research, and technology development.
Kruskal–Szekeres coordinates are a specific set of coordinates used in the context of general relativity, particularly to describe the Schwarzschild solution, which describes the spacetime surrounding a spherically symmetric, non-rotating mass such as a black hole. These coordinates are particularly useful because they allow for a smooth and complete description of the Schwarzschild black hole, including regions that might be singular or undefined in standard Schwarzschild coordinates.
Minkowski space is a mathematical structure that combines the three dimensions of space with the dimension of time into a four-dimensional manifold. It is a fundamental concept in the field of special relativity, formulated by the mathematician Hermann Minkowski in 1907. In Minkowski space, the geometry is governed by the Minkowski metric, which differs from the familiar Euclidean metric used in classical three-dimensional space.
Spherically symmetric spacetime is a type of solution to the equations of general relativity that describes a gravitational field resulting from a mass distribution that is symmetric in all directions around a central point.
Tsirege is a traditional dish from the Tuareg people, who are nomadic Berber tribes predominantly found in regions of North Africa, including parts of Niger, Mali, Libya, and Algeria. The dish often consists of grilled meat, commonly mutton or goat, which is seasoned with various spices, and typically served with flatbread. Tsirege is often accompanied by a sauce or condiment and can feature a variety of other ingredients depending on regional variations.
Kerosene, also known as paraffin oil, is a flammable hydrocarbon liquid derived from petroleum. It is primarily used as a fuel for jet engines, heating, and lamps. Kerosene is made up of a mixture of hydrocarbons, principally alkanes, cycloalkanes, and aromatic hydrocarbons, and it typically has a boiling point range of about 150 to 300 degrees Celsius (302 to 572 degrees Fahrenheit).
A metal deactivator is a type of chemical additive that is used to inhibit or neutralize the catalytic effect of trace metal ions (such as copper, iron, and manganese) in various industrial processes, particularly in lubricants, fuels, and polymer production. These metals can accelerate oxidative degradation, leading to reduced performance, shortened lifespan, and formation of unwanted byproducts.
"Pipe dope" refers to a type of lubricant or sealant used on the threaded joints of pipes, particularly in plumbing, oil, and gas applications. Its primary purpose is to create a seal that prevents leaks at the joints while also providing lubrication to facilitate easier assembly of threaded connections. Pipe dope can come in various formulations, including pastes, liquids, and compounds, and it may be designed for specific types of materials, such as metal or plastic pipes.
Shell Rotella is a brand of heavy-duty engine oils and lubricants produced by Shell, a global energy and petrochemical company. Rotella products are specifically formulated for diesel engines, including those used in trucks, buses, and construction equipment, but they also cater to gasoline engines and other vehicles. The product line includes various types of motor oils, including conventional, synthetic blend, and fully synthetic formulations.
"MacGyver" is a popular television series that originally aired from 1985 to 1992 and was later rebooted in 2016. The show follows the main character, Angus MacGyver, who is known for his resourcefulness and ability to solve problems using everyday materials and his scientific knowledge. Here’s a list of some of the notable characters from both the original and reboot series: ### Original Series (1985-1992) 1.
Reiko Sakamoto is a distinguished Japanese mathematician known for her contributions to the field of mathematics, particularly in the areas of arithmetic geometry and algebraic geometry. She has worked extensively on topics related to number theory and algebraic structures. In addition to her research, Sakamoto has been involved in various academic roles, contributing to the education and advancement of mathematics in Japan and internationally.
Robert Willis is a notable figure in the field of engineering, particularly recognized for his work related to structural engineering and the design of large and complex structures. He may be known for contributions to various architectural projects, research, or innovations within the discipline. However, details specific to a Robert Willis in engineering may vary, as there could be multiple individuals with that name in different areas of specialization.

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