The Addiator is a mechanical calculating device or adding machine that was invented in the early 20th century. It is designed to perform addition and subtraction using a system of sliding beads or similar mechanisms. The device typically features a series of rods or levers that can be manipulated to input numbers, with the results displayed through mechanical indicators. The Addiator gained popularity for its simplicity and ease of use, making it a useful tool for calculations in various fields, including commerce and education.
A "point of interest" (POI) refers to a specific location that someone may find interesting or useful, particularly in the context of navigation, travel, and geographic information systems (GIS). POIs can include a wide range of locations or landmarks, such as: 1. **Tourist Attractions**: Museums, historical sites, monuments, parks, and other places that draw visitors. 2. **Businesses**: Restaurants, shops, hotels, service centers, etc.
Adlène Hicheur is a French-Algerian physicist known for his work in particle physics. He has been associated with various research projects and has contributed to experiments at major particle physics facilities, including the Large Hadron Collider (LHC) at CERN, which is the world's largest and most powerful particle accelerator. Hicheur gained some notoriety due to involvement in legal and political controversies, particularly regarding his alleged connections with extremist groups and the subsequent legal cases surrounding those allegations.
Adolf Ferdinand Wenceslaus Brix, commonly known as Brix, was a notable figure in the field of mathematics and engineering, particularly recognized for his contributions to the development of tools for measuring and surveying. He was also involved in the invention and improvement of various instruments in the 19th century. His name is often associated with the Brix scale, a measurement indicating the sugar content in an aqueous solution, commonly used in the food industry for fruit juices, wines, and other beverages.
The Advanced Boiling Water Reactor (ABWR) is a type of nuclear reactor that represents an evolution of the traditional boiling water reactor (BWR) technology. It was developed to improve safety, efficiency, and operational performance. The ABWR incorporates several advanced design features and technologies aimed at enhancing its performance compared to earlier BWR designs.
AFGROW is a software program used for analyzing the growth of cracks in materials, particularly in aerospace, civil engineering, and mechanical engineering applications. The name "AFGROW" stands for "A Fatigue Crack Growth" model, and the software is primarily utilized for predicting fatigue crack growth under varying load conditions. AFGROW employs various computational models and methodologies to simulate crack growth behavior, considering factors like material properties, load history, environmental conditions, and crack geometry.
An affine vector field is a type of vector field that is characterized by its linearity and transformation properties. In mathematics, particularly in differential geometry and the study of dynamical systems, vector fields are functions that assign a vector to every point in a space. Here's a more detailed explanation of affine vector fields: 1. **Affine Structure**: In the context of differential geometry, an affine vector field can be understood in relation to an affine space.
The phrase "Political power grows out of the barrel of a gun" is attributed to Mao Zedong, the founding father of the People's Republic of China and a key figure in the history of communist ideology. This statement reflects Mao's belief that the use of armed force is a crucial means of achieving and maintaining political power. In essence, Mao argued that military strength and the ability to use force are fundamental to establishing authority and enforcing governance.
Gábor Stépán is a name that does not have widely available public information or recognition. It is possible that he is a private individual or a professional in a specific field that has not garnered significant media attention. If you can provide more context or specify the field (e.g.
As of my last update in October 2023, there isn't a widely known figure or entity named "Afzal Husain" that has gained significant recognition in global news, culture, or history. It is possible that "Afzal Husain" refers to a specific individual who may be known in a particular region or context, or it could relate to a specific event or topic that gained attention after my last update.
A. Gopalakrishnan could refer to several individuals, but one prominent person by that name is A. Gopalakrishnan, an Indian nuclear physicist and former chairman of the Atomic Energy Regulatory Board of India. He is known for his contributions to the field of nuclear science and his involvement in discussions on nuclear policy and safety.
GABRP commonly refers to GABARAP, which stands for Gamma-Aminobutyric Acid Receptor-Associated Protein. It is a protein that is associated with GABA receptors, which are critical for inhibitory neurotransmission in the brain. GABARAP is involved in receptor trafficking, synaptic function, and potentially in the mediation of some forms of synaptic plasticity.
"Polycon" could refer to various concepts, products, or companies depending on the context. Here are a few possibilities: 1. **Polycon (Event)**: This could be an abbreviation for a convention or conference that focuses on themes like technology, gaming, cosplay, or pop culture, similar to events like Comic-Con.
AIR, or Adobe Integrated Runtime, is a cross-platform runtime environment developed by Adobe Systems that allows developers to build rich internet applications (RIAs) using Adobe Flash, Flex, HTML, JavaScript, and other web technologies. AIR enables these applications to run as standalone desktop applications instead of just in a web browser.
Akira Hasegawa could refer to various individuals, but it's most commonly associated with a notable Japanese television producer or a character in a specific context, such as a movie, show, or other media.
Michael J. Saylor by Ciro Santilli 37 Updated 2025-07-16
As of October 2023, the Akron Zips men's basketball program has several notable statistical leaders in various categories. Below are some of the key statistical leaders typically considered: 1. **Points**: The all-time leading scorer for the Zips. 2. **Rebounds**: The player with the most career rebounds in the program's history. 3. **Assists**: The leader in assists throughout the program's history.
Aksel Frederik Andersen is not widely known in popular databases or sources up until my last knowledge update in October 2023. It is possible that he could be a private individual, an emerging public figure, or a character in a specific context.
A **polynomial functor** is a concept from category theory, particularly in the field of algebraic structures in categories. It provides a structured way to describe functors that have a form similar to polynomial expressions. ### Definition In simple terms, a polynomial functor can be viewed as a functor that combines different types of "operations" such as sums and products, much like a polynomial combines variables with coefficients using addition and multiplication.

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