The Coxeter graph is an important concept in the fields of algebra, geometry, and graph theory. Specifically, it is a particular type of graph that represents the symmetric group and the properties of certain mathematical structures, particularly in relation to Coxeter groups. Here are some key features of the Coxeter graph: 1. **Definition and Structure**: The Coxeter graph is a finite undirected graph with 12 vertices and 18 edges.
A Platonic graph is a representation of a Platonic solid, which are the five regular, convex polyhedra that can exist in three-dimensional space. These solids are characterized by having faces that are congruent regular polygons and the same number of faces meeting at each vertex. The five Platonic solids are: 1. Tetrahedron (4 triangular faces) 2. Cube (6 square faces) 3. Octahedron (8 triangular faces) 4.
Prestressed concrete construction is a technique used to enhance the strength and performance of concrete structures. This method involves the application of a pre-compression force to the concrete before it is subjected to external loads. The primary goal of prestressing is to counteract tensile stresses that occur when loads are applied, thus improving the structural performance and durability of the concrete.
The Casanatense Chansonnier, also known as the Casanatense Songbook, is a significant manuscript from the late Middle Ages, containing a collection of secular songs primarily in the Old French language. It is named after the Biblioteca Casanatense in Rome, where it is preserved. The chansonnier includes a variety of lyrical compositions, demonstrating the diversity of themes and styles prevalent in medieval French poetry and music, such as courtly love, chivalry, and various social contexts.
The Forrest-Heyther partbooks are a collection of musical manuscripts from the late 16th and early 17th centuries, containing vocal music notated in partbook format. Partbooks were common during the Renaissance and early Baroque periods, where each voice (soprano, alto, tenor, bass) had its own book instead of a full score.
BAP Carrasco (BOP-171) is a multi-role oceanographic research vessel serving in the Peruvian Navy. Commissioned into service in the early 2000s, the ship is designed for a variety of missions, including research, surveillance, and support for scientific expeditions. The vessel is equipped with sophisticated instruments and technology for conducting oceanographic studies and gathering data on marine environments, which are essential for ecological research and resource management.
Asafoetida, also known as "hing," is a potent spice derived from the resin of the Ferula plant, mainly Ferula assa-foetida. It is native to the regions of Iran and Afghanistan and is widely used in Indian cuisine, particularly in vegetarian dishes, due to its strong flavor and aroma. The spice has a pungent, garlic-like smell when raw, but it becomes mellow and flavorful when cooked.
DORIS (Doppler Orbitography and Radiopositioning Integrated by Satellite) is a satellite-based positioning system used primarily for precise orbit determination. It was developed by the French National Centre for Space Studies (CNES) in collaboration with various international partners. DORIS is particularly notable for its ability to provide accurate measurements of the satellites' orbits by using a network of ground beacons that transmit radio signals.
Austrian resin extraction typically refers to the method of collecting resin from pine trees, particularly from the species that thrive in Austria and surrounding regions. This practice has historical significance, especially in the context of producing turpentine and rosin, which have various industrial and medicinal applications. The extraction process generally involves: 1. **Tapping**: Making incisions in the bark of the pine trees to access the resin. These incisions allow the resin to flow out and collect in containers.
Coniferous resin salve is a topical ointment or balm made primarily from the resin of coniferous trees, such as pine, spruce, and fir. These resins are known for their natural antiseptic, anti-inflammatory, and analgesic properties. The salve may also contain other natural ingredients, such as oils, beeswax, and essential oils, to enhance its therapeutic effects and improve its texture for easy application.
RDFa, which stands for Resource Description Framework in Attributes, is a suite of extensions to HTML5 or other XML-based document formats that enables embedding rich metadata within web documents. It allows authors to provide structured data within their HTML or XHTML documents in a way that can be easily processed by machines, such as search engines and other applications that utilize semantic web technologies.
SPARQL (pronounced "sparkle") is a query language and protocol used for accessing and querying data stored in Resource Description Framework (RDF) format. RDF is a standard model for data interchange on the web, which encodes information in a graph structure using triples: subject-predicate-object expressions. SPARQL allows users to: 1. **Query RDF Data**: It can retrieve and manipulate data stored in RDF format from various sources, including databases, files, and endpoints.
Graph Style Sheets (GSS) is a language used to define styles for graph visualizations, similar to how CSS (Cascading Style Sheets) is used for styling HTML documents. GSS allows users to specify visual attributes for graph elements, such as nodes, edges, labels, and backgrounds, enabling the customization of the appearance of graphs in a structured and reusable manner.
A "greguería" is a literary form that originated in Spain, created by poet and writer Ramón Gómez de la Serna in the early 20th century. It combines elements of metaphor, humor, and succinctness, often offering a witty observation or a bizarre narrative twist. Typically, a greguería is a short sentence or phrase that plays with language in an imaginative way, using puns or unexpected associations to provoke thought or laughter.
"Schesis onomaton" is a term from ancient Greek philosophy, particularly associated with the field of linguistics and the study of language. The phrase roughly translates to "the state of names" or "the condition of names." It refers to how names and words signify concepts, how they are structured, and their meanings within a language.
Margaret Cavendish, Duchess of Newcastle-upon-Tyne (1623–1673), was an English aristocrat, writer, and philosopher, known for her contributions to literature and her unique approach to science and gender. Born Margaret Lucas, she married William Cavendish, the Duke of Newcastle, who was a prominent literary figure and soldier. Cavendish is notable for her extensive body of work, which includes poetry, plays, and philosophical writings.
A General Rhetoric typically refers to a framework or a body of principles that guides the effective use of language and persuasion in communication. It encompasses the study of how language can influence audiences in various contexts, including speeches, writing, and visual communication. The concept seeks to identify universal strategies and techniques that can be applied across different forms of discourse, whether in academic writing, public speaking, advertising, or everyday conversation.
As of my last knowledge update in October 2023, Elizabeth Marney Conner does not appear to be a widely recognized public figure or concept in popular culture, literature, or notable events. It’s possible that she could be a private individual or someone who has gained prominence after my last update.
Kjersti Fløttum is a Norwegian linguist known for her work in the fields of linguistics and language studies. She has contributed significantly to research on language and communication, including topics such as semantics, pragmatics, and discourse analysis. Fløttum has also been involved in various academic publications and projects related to her expertise.
The Uniformization Theorem is a fundamental result in the field of complex analysis and differential geometry. It essentially states that every simply connected Riemann surface is conformally equivalent to one of three types of surfaces: the open unit disk, the complex plane, or the Riemann sphere. This theorem provides a way to understand the structure of Riemann surfaces in terms of more familiar mathematical objects.

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