The coefficient of restitution (COR) is a measure of the elasticity of collisions between two objects. It quantifies how much kinetic energy remains for the objects after they collide, specifically in terms of their velocities before and after the collision.
Cog's Ladder is a model of group development created by Dr. George O. Cog. It describes the stages that groups go through as they evolve and develop over time. The framework is particularly useful in understanding team dynamics and improving collaboration among group members. Cog's Ladder consists of five key stages: 1. **Polite Stage**: In this initial stage, team members are polite and cautious as they get to know one another.
The 90th meridian west is a line of longitude that is located 90 degrees west of the Prime Meridian, which is at 0 degrees longitude. It runs from the North Pole to the South Pole and crosses through several regions of North America, including parts of the United States and Canada. Notably, it passes through cities like New Orleans in Louisiana and Minneapolis in Minnesota.
The 98th meridian east is a line of longitude that is 98 degrees east of the Prime Meridian, which is located at 0 degrees longitude. It runs from the North Pole to the South Pole and is used in geographical coordinate systems to help pinpoint locations on the Earth's surface. The 98th meridian east passes through several countries, including parts of Russia, Mongolia, China, and India.
In algebraic topology, cohomotopy is a concept closely related to the more familiar notions of homotopy and cohomology. While homotopy typically deals with the idea of deformation of spaces and maps between them, cohomotopy focuses on a related set of questions but from the perspective of cohomology theories and spaces of maps.
"Paradeigma" is a term derived from the Greek word "παράδειγμα," which translates to "example" or "pattern." In philosophical and rhetorical contexts, it can refer to a model or a framework that serves as a reference point or illustrates a specific concept or argument.
Experimental rockets are spacecraft designed to test new technologies and concepts related to rocketry and spaceflight. Unlike operational rockets that are used for commercial launches or government missions, experimental rockets often focus on research and development. They serve various purposes, including: 1. **Technology Demonstration**: Testing new propulsion systems, materials, and design concepts aimed at improving rocket performance, safety, or reliability.
Ezra Pound (1885–1972) was an American poet, critic, and one of the most influential figures in modernist literature. He is best known for his role in the development of modern poetry and for his contributions to various literary forms, including imagism and Vorticism. Pound's works often emphasized clarity, precision, and the use of concrete imagery, breaking away from traditional poetic conventions.
A paroemion is a rhetorical device characterized by the repetition of a word or words in close proximity, often used to create emphasis or to enhance the rhythmic quality of a phrase or text. It typically highlights a particular idea or theme by repeating specific terms, making the message more memorable. This technique can be found in various forms of literature, including poetry, speeches, and prose, thereby reinforcing key concepts or emotions within the work.
Faces was a British rock band that emerged in the late 1960s, evolving from the earlier group Small Faces. Formed in 1969, the band consisted of members Rod Stewart (vocals), Ron Wood (guitar), Ian McLagan (keyboards), and Kenney Jones (drums), with the original bassist, Ronnie Lane, remaining in the group. Faces are known for their energetic live performances and a sound that blends rock, blues, and folk elements.
Collective classification refers to a set of techniques in machine learning and data mining that focus on the prediction of labels for multiple interrelated instances simultaneously, rather than individually. This approach is particularly useful in domains where instances have dependencies or relationships with each other, such as social networks, citation networks, and biological networks. In traditional classification, each instance is treated independently, and the classification model predicts the label for each instance based solely on its features.
The designation "2010 TJ" refers to a specific model of the Jeep Wrangler, which was produced from 1996 to 2006. The "TJ" signifies the second generation of the Wrangler. This generation is known for its solid front and rear axles, improved handling, and an overall more refined design compared to its predecessor, the YJ.
Champagne-Ardenne was a administrative region in northeastern France, known for its historical significance, cultural heritage, and natural beauty. It was created in 1960 and existed until the territorial reorganization of French regions in 2016, when it was merged into the new Grand Est region. The region is famous for its production of Champagne, the sparkling wine that is highly regarded worldwide.
Lazio is a region in central Italy, known for its rich historical and cultural heritage. It is bordered by the Tyrrhenian Sea to the west, and is home to the capital city of Rome, which is also the capital of Italy. Lazio is characterized by a diverse landscape that includes mountains, hills, and coastal areas. The region is significant for its historical sites, including ancient Roman ruins, medieval towns, and Renaissance architecture.
North Brabant, or Noord-Brabant in Dutch, is a province located in the southern part of the Netherlands. It is bordered by Belgium to the south, and it is known for its diverse landscape, which includes forests, rivers, and agricultural land. The capital city of North Brabant is 's-Hertogenbosch, which is known for its historic architecture and vibrant cultural scene. The province is also notable for its economic activities, with a mix of agriculture, industry, and technology sectors.
Lombardy is a region in northern Italy, known for its rich history, cultural heritage, and economic significance. It is one of the most densely populated and economically developed regions in the country. The regional capital is Milan, which is a major financial and fashion hub, as well as a center for art and culture. Lombardy is characterized by diverse landscapes, including the Po Valley, the Alps, and various lakes, such as Lake Como, Lake Garda, and Lake Maggiore.
The term "Masovian Regional" typically refers to the Masovian Voivodeship (province), which is a region in central Poland. The capital of this voivodeship is Warsaw, the capital city of Poland. The Masovian region is known for its cultural and economic significance, as it includes a mix of urban areas, rural landscapes, and historical sites.
The North Aegean refers to a geographical region in Greece that encompasses a group of islands and coastal areas situated in the northern part of the Aegean Sea. This area is characterized by its numerous islands, each with unique cultural and natural features. Key islands in the North Aegean include Lesbos, Chios, Samos, Lemnos, and Thasos, among others. The North Aegean region is known for its rich history, beautiful landscapes, and significant archaeological sites.
The North Region of Portugal, known as "Norte" in Portuguese, is one of the country's five primary administrative regions. It is characterized by its diverse landscapes, ranging from mountains in the interior to picturesque coastlines along the Atlantic Ocean. The region is known for its rich cultural heritage, historical landmarks, and vibrant cities.
The term "2010 VR11" could refer to various concepts depending on the context, but it is most commonly associated with a few different areas: 1. **Astronomy**: It might refer to an astronomical object or event, such as an asteroid or a comet, discovered or designated with this label. Astronomers often use nomenclature like this to identify and catalog celestial bodies.

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