PWB/UNIX, or "Programmer's Workbench UNIX," is an early version of the UNIX operating system that was developed at Bell Laboratories. PWB was created in the 1970s as a variant of the original UNIX system, with a focus on providing tools and utilities that would enhance programming productivity.
Mie Kumagai is a Japanese professor known for her work in the field of education and linguistics, particularly in relation to language acquisition and bilingualism. She has made contributions to understanding how individuals learn languages and the cognitive processes involved in this.
Corgee is a trendy term referring to a curated experience or mood that combines cooking, food exploration, and social interaction, often associated with digital platforms or communities focused on food culture. However, the term is not widely recognized in mainstream vernacular, and its exact definition can vary depending on context.
Rebecca Heineman is a notable figure in the video game industry, recognized for her work as a game designer, programmer, and producer. She was one of the first female video game developers and has made significant contributions to the field since the early days of gaming. Her career began in the 1980s, and she is best known for her work on classic games, particularly in the adventure and role-playing game genres.
The "Grivna" (often spelled "Hryvnia") is the official currency of Ukraine. Its symbol is "₴" and its ISO code is "UAH." The currency was introduced in 1996, replacing the karbovanets, and has undergone various changes in design and security features since its introduction. The Hryvnia is subdivided into 100 kopiykas.
The Foot–Pound–Second (FPS) system is a system of measurement that uses the foot as the unit of length, the pound as the unit of force or weight, and the second as the unit of time. It is one of the systems of units used in physics and engineering, primarily in the United States. In this system: - **Foot (ft)**: This is the unit of length. One foot is equal to 12 inches.
Becquerel (symbol: Bq) is the SI unit of radioactivity. It measures the activity of a quantity of radioactive material, specifically the number of disintegrations (or decay events) that occur in a sample per second. One becquerel is defined as one disintegration per second. The unit is named after Henri Becquerel, a French physicist who discovered radioactivity in 1896.
Kadem, often referred to in the context of Kademlia, is a type of distributed hash table (DHT) protocol used in peer-to-peer networking. Kademlia is designed for decentralized network applications, allowing nodes to efficiently locate and store data across a dispersed network without a central server.
Walking distance measure refers to a method of quantifying the distance that a person can walk from a specific point, typically considering the path taken along streets, sidewalks, or trails. It is often used in urban planning, geographic information systems (GIS), transportation studies, and healthcare to assess accessibility to various amenities, services, or locations.
The Torino Scale is a system used to classify the impact hazard associated with near-Earth objects (NEOs), such as asteroids and comets. Developed in 1999, this scale provides a way to communicate the potential risk that these objects pose to Earth. The Torino Scale ranges from 0 to 10, where: - **0**: No risk. The object poses no unusual risk of collision with Earth.
The Rocky Mountain Journal of Mathematics is a peer-reviewed journal that publishes research articles in various areas of mathematics. Established in 1971, it focuses on high-quality original research, reviews, and expository papers that cover a wide range of mathematical topics, including but not limited to algebra, analysis, geometry, and applied mathematics. The journal aims to promote mathematical research and foster communication among mathematicians, particularly those associated with the Rocky Mountain region, although it is open to authors and readers worldwide.
Topology is a peer-reviewed academic journal that specializes in the field of topology, a branch of mathematics concerned with the properties of space that are preserved under continuous transformations. Established in 1961, the journal publishes research articles that cover various areas of topology, including general topology, algebraic topology, and related aspects of mathematics. The journal serves as a platform for mathematicians to disseminate significant findings, advancements, and theories in topology and its applications.
Friedrich L. Bauer was a prominent German computer scientist known for his contributions to various areas of computer science, particularly in the fields of algorithm design, programming languages, and software engineering. Born on July 2, 1924, he played a significant role in the development of early computing in Germany and worked on several advanced computing topics, including formal methods and programming language theory.
The 1950s marked a significant period in the development of computers. It was a decade characterized by the transition from vacuum tube-based systems to transistor technology, which laid the foundation for modern computing. Here are some key highlights of 1950s computers: 1. **Early Mainframes**: This decade saw the rise of mainframe computers designed for scientific and business applications.
Several programming languages were created in the 2000s that have had a significant impact on the software development landscape. Here are some notable examples: 1. **C# (2000)** - Developed by Microsoft, C# is a versatile language widely used for building Windows applications and games using the .NET framework. 2. **D (2001)** - Designed as a successor to C++, D incorporates features from multiple languages, focusing on performance and productivity.
In 1958, several computer companies were disestablished or ceased operations due to various reasons, including mergers, acquisitions, or market changes. One notable example is **General Motors Research Laboratories' computer division**, which was integrated into other parts of the company or moved away from computer production. The landscape of the computer industry was rapidly evolving during this period, and many companies that could not keep pace with advancements or competition were forced to close.
Muirhead's Inequality is a powerful result in the field of inequalities and symmetric sums, often utilized in combinatorial and algebraic contexts. It addresses the relationship between symmetric sums of different kinds of sequences and provides a way to compare sums based on their symmetry types.
The Northern Sea Route (NSR) is a shipping route that runs along the northern coast of Russia, connecting the Atlantic and Pacific Oceans. It primarily navigates through the Arctic Ocean and includes various straits and channels, allowing vessels to travel between Europe and Asia without needing to go through traditional routes like the Suez Canal.
The sense of direction refers to an individual's ability to orient themselves in space and navigate from one location to another. It involves several cognitive processes, including spatial awareness, memory, and environmental perception. People use various strategies to maintain their sense of direction, such as: 1. **Landmarks**: Recognizing and remembering prominent features in the environment, like buildings, trees, or signs.

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 5. . 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.
  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