Atlas, often referred to as the Atlas Computer, was one of the earliest examples of a supercomputer developed in the early 1960s. Specifically, it was created at the University of Manchester in the UK, and its development began in 1956, with the machine going into operation around 1962.
Colossus was one of the world's first programmable digital computers, developed during World War II to help break encrypted German messages. It was designed by British engineer Tommy Flowers and his team at Bletchley Park, where critical codebreaking efforts took place. Colossus began operation in 1944 and was specifically used to decrypt the Lorenz cipher, which was employed for high-level military communications by the German military.
Mina Teicher is a mathematician known for her work in mathematical logic, particularly in areas related to set theory, model theory, and various aspects of mathematical foundations. She has contributed to the field through research, publications, and her involvement in academic activities.
Theodorus Dekker could refer to multiple people, depending on context, but one notable individual with that name is a Dutch historian and author known for his work on the history of the Netherlands during the 20th century.
Zacharias Janssen was a Dutch spectacle maker and is often credited, along with his father Hans Janssen, with the invention of the compound microscope during the late 16th century. Although the exact details of his life and contributions are somewhat unclear and debated, it is generally accepted that he played a significant role in the early development of optical instruments.
Marga Klompé was a notable Dutch politician and a member of the Labour Party (Partij van de Arbeid, PvdA). She was born on December 26, 1912, and passed away on February 8, 2000. Klompé is particularly recognized for her role as the first female minister in the Netherlands, serving as Minister of Culture, Recreation and Social Work from 1965 to 1967.
Sylvie Roke is a fictional character from the animated series "Carmen Sandiego." She is depicted as a young, intelligent, and resourceful woman who is often seen working alongside the series' main character, Carmen. The show revolves around Carmen's adventures as a master thief who steals from thieves to right wrongs and expose the corruption of organizations like V.I.L.E.
The Autumn Equinox, also known as the Fall Equinox or September Equinox, is an astronomical event that occurs when the Sun crosses the celestial equator, making day and night approximately equal in length. This event typically takes place around September 22 or 23 in the Northern Hemisphere and is one of two equinoxes that occur each year; the other being the Spring Equinox, which happens around March 20 or 21.
The National Center for Supercomputing Applications (NCSA) is a research center located at the University of Illinois at Urbana-Champaign. It was established in 1986 and is one of the leading institutions in the field of supercomputing and high-performance computing (HPC) in the United States. NCSA plays a significant role in advancing computational science and engineering by providing researchers with access to state-of-the-art supercomputing resources, data storage, and visualization tools.
The National Institute for Environmental eScience (NIES) is an organization that focuses on enhancing the understanding and management of environmental issues through the integration of data, technology, and science. NIES typically aims to provide resources, tools, and methodologies for environmental research and education, often emphasizing the use of e-science, which involves using computational and data-intensive approaches to address environmental challenges.
The Network for Earthquake Engineering Simulation (NEES) was a multi-faceted initiative funded by the National Science Foundation (NSF) in the United States, aimed at enhancing the understanding of earthquake behavior and reducing risk through advanced research infrastructure. Established in the early 2000s, NEES integrated experimental and computational research to better understand the impact of earthquakes on structures and infrastructure.
Equinoxes are astronomical events that occur twice a year when the Sun reaches its highest or lowest point in the sky at noon, resulting in nearly equal amounts of daylight and darkness. The two equinoxes are known as the vernal equinox and the autumnal equinox. 1. **Vernal Equinox**: This occurs around March 20 or 21 in the Northern Hemisphere, marking the beginning of spring.
Solar System dynamic theories refer to the mathematical and physical frameworks that explain the motions and gravitational interactions of celestial bodies within the Solar System. These theories encompass a wide range of topics, including the movements of planets, moons, asteroids, comets, and the Sun itself. Here are some key aspects: 1. **Newtonian Mechanics**: Sir Isaac Newton's laws of motion and the law of universal gravitation laid the groundwork for understanding the dynamics of celestial bodies.
The Spring Equinox, also known as the Vernal Equinox, occurs around March 20 or 21 each year in the Northern Hemisphere. It marks the moment when the sun crosses the celestial equator, moving northward. On this day, day and night are approximately equal in length, which is why it's called an equinox (from Latin, meaning "equal night").
"Equinox" can refer to a few different concepts depending on the context: 1. **Astronomy**: An equinox is an astronomical event that occurs twice a year when the sun is directly above the equator, resulting in nearly equal lengths of day and night across the globe. The two equinoxes are the vernal (spring) equinox, occurring around March 20 or 21, and the autumnal equinox, occurring around September 22 or 23.
The term "invariable plane" is commonly used in celestial mechanics and can refer to the concept of a plane that remains fixed in space during the orbital motion of a celestial body, such as a satellite or a planet. Specifically, in the context of celestial mechanics, the invariable plane is defined as the plane that contains the total angular momentum vector of a system of bodies. For a system of celestial bodies, the invariable plane is often considered with respect to the center of mass of the system.
The "Jupiter Barrier" is a term that may refer to the gravitational influence of Jupiter in the solar system, particularly its role in shaping the dynamics of the asteroid belt and other celestial bodies. Jupiter is the largest planet in our solar system and has a strong gravitational field that can affect the orbits of nearby objects. One specific context where the term may be used is in discussions about the stability of the asteroid belt.
The orbit of Venus refers to the path that the planet Venus takes around the Sun. Here are some key details about Venus's orbit: 1. **Orbital Period**: Venus takes approximately 225 Earth days to complete one orbit around the Sun. This is known as its orbital period. 2. **Orbital Distance**: Venus is the second planet from the Sun, and it orbits at an average distance of about 108 million kilometers (about 67 million miles).
The Peak of Eternal Light is a location on the Moon in the game "Destiny." Specifically, it is a point of interest in the game's expansive open-world setting, known for its unique and haunting beauty. The area is characterized by its perpetual sunlight, which gives it a distinctive appearance compared to other regions that are more shadowy or desolate.

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