Teletext was a technology used in the UK and many other countries to provide textual information and services alongside television broadcasts. The specific implementation in the UK was called "Ceefax," operated by the BBC, and there were also services from other broadcasters like ITV's "Oracle.
Forensic seismology is a specialized field that utilizes seismic data to investigate and analyze events related to human activities, such as explosions, landslides, or other geological disturbances. It combines principles from seismology, geology, and forensic science to gather evidence and provide insight into various occurrences. Key aspects of forensic seismology include: 1. **Seismic Data Analysis**: Forensic seismologists analyze ground vibrations and seismic waves generated by different sources.
Myrinet is a high-speed networking technology designed for communication in high-performance computing (HPC) environments. Originally developed by Myricom, Inc., Myrinet provides a low-latency and high-bandwidth interconnect for parallel computing clusters. It is often used in supercomputers and large-scale data centers to facilitate efficient communication among nodes in a computing cluster.
Maxwell construction is a graphical method used in thermodynamics and statistical mechanics to address issues related to phase transitions in substances, particularly in the context of systems exhibiting first-order phase transitions. This method is named after James Clerk Maxwell, who contributed to the understanding of these transitions. The primary application of Maxwell construction is to resolve the inconsistencies that arise in the pressure-volume (P-V) diagrams of materials during phase transitions, such as the transition between liquid and gas phases.
As of my last update in October 2023, the term "Phoebus group" could refer to various entities or concepts, depending on the context in which it is used. For instance: 1. **Phoebus Cartel**: This was a historical group of major light bulb manufacturers in the early 20th century, established to control the market by limiting the lifespan of light bulbs and reducing competition.
Formula composition typically refers to the way in which various components or ingredients are combined to create a specific formula. This term can be applied in several fields, including: 1. **Chemistry and Pharmaceuticals**: In these contexts, formula composition refers to the exact proportion and combination of chemical substances used to create a compound, drug, or solution. Understanding the composition is crucial for the efficacy and safety of the final product.
Tsallis statistics is a generalization of classical statistical mechanics that extends the concepts of entropy and thermodynamic relationships, formulated by the Brazilian physicist Constantino Tsallis in the 1980s. It introduces a new statistical framework that is particularly useful for systems exhibiting non-extensive characteristics, where the traditional Boltzmann-Gibbs statistics may not apply effectively. **Key Features of Tsallis Statistics:** 1.
NGC 6559 is a bright emission nebula located in the constellation Sagittarius. It is part of a larger star-forming region and is situated near other well-known astronomical objects such as the Lagoon Nebula (M8) and the Trifid Nebula (M20). NGC 6559 is characterized by its rich red hues, which are typical of hydrogen gas emissions, signifying active star formation.
A sky deity is a god or goddess associated with the sky and heavens in various cultures and mythologies. These deities often embody aspects of the sky, such as weather, storms, celestial bodies (like the sun, moon, and stars), and the overarching concept of the heavens. Sky deities are typically considered powerful figures with control over natural phenomena and are often revered for their influence over agriculture, navigation, and human life. Sky deities can be found in many religious traditions around the world.
The term "Sky Father" refers to a type of deity in various mythologies who is associated with the sky and is often considered a creator god or a supreme deity. These figures typically embody qualities such as authority, power, and governance over the natural world. The Sky Father archetype is common in many cultures around the world. In many traditions, the Sky Father is paired with a corresponding Earth Mother figure, symbolizing the union of sky and earth in creation myths.
A tube tester is a device used to test the functionality and performance of vacuum tubes, which were commonly used in electronics, especially in audio amplifiers, radios, and other equipment, before the advent of solid-state devices like transistors. Tube testers assess the condition of tubes by measuring various electrical parameters such as filament continuity, emission (the ability of the tube to emit electrons), mutual conductance (the ability to amplify a signal), and more.
Total Variation Denoising (TVD) is a mathematical technique used in image processing and signal processing to remove noise from images while preserving important features such as edges. The underlying idea of TVD is to minimize the total variation of an image, which is a measure of its smoothness, while still attempting to fit the observed noisy data.
In the context of public transit, "transfer" refers to the process of changing from one transit vehicle to another in order to complete a journey. This is common in public transportation systems where multiple routes and modes of transit, such as buses, trains, or trams, are used to navigate from one location to another. When transferring, passengers usually need to navigate to a different stop or station to board a new vehicle.
Francisco Varela (1946–2001) was a Chilean biologist, neuroscientist, and philosopher known for his work in the fields of cognitive science, biology, and philosophy of mind. He is particularly recognized for his contributions to the understanding of cognition, consciousness, and the nature of life through a multidisciplinary lens that integrates insights from biology, neuroscience, and phenomenology.
Transportation Demand Management (TDM) refers to a set of strategies and policies aimed at optimizing the use of transportation systems and reducing the demand for single-occupancy vehicle travel. The goal of TDM is to improve mobility, reduce traffic congestion, minimize environmental impacts, and enhance the overall efficiency of transportation networks. TDM strategies typically involve encouraging the use of alternative modes of transportation, increasing the occupancy of vehicles, and promoting more efficient travel patterns.
Francis Salabert is a notable figure in the field of music, primarily recognized as a French composer and music publisher. He was born in 1898 and passed away in 1988. Salabert was influential in the dissemination of contemporary music, and his publishing house, Éditions Salabert, played a significant role in promoting various composers and musical works, particularly in the 20th century.
In computing, "polyglot" refers to programs or scripts that can be run in multiple programming languages. A polyglot program is designed to be syntactically correct in more than one programming language, allowing it to execute or produce valid output in each language without modification. This is often achieved by leveraging specific features or ambiguities within the syntax of different languages.
Tropical cyclones, also known as hurricanes or typhoons in different regions, are powerful storms that form over warm tropical oceans. They are characterized by strong winds, heavy rainfall, storm surges, and can cause significant damage to coastal areas and inland regions. The development of these storms is influenced by several atmospheric and oceanographic factors, including sea surface temperatures, humidity, wind patterns, and more.

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