77 mm artillery by Wikipedia Bot 0
77 mm artillery refers to a type of artillery piece with a caliber of 77 millimeters. This caliber was used in various artillery systems throughout the 20th century, particularly during World War II and the post-war period. One notable example of a 77 mm artillery piece is the Soviet 77 mm field gun M1936 (also known as the 76.2 mm gun F-22), which was used by the Soviet Union during the war.
800 mm artillery by Wikipedia Bot 0
The term "800 mm artillery" typically refers to a type of large-caliber artillery piece that has a bore diameter of 800 millimeters. The most notable example of an 800 mm artillery piece is the **Schwerer Gustav**, a heavy railway gun developed by Nazi Germany during World War II. It was designed for the purpose of penetrating heavily fortified positions, such as the French Maginot Line or the Soviet Union's defenses.
88 mm artillery by Wikipedia Bot 0
The term "88 mm artillery" typically refers to a caliber of artillery weapon, most famously associated with the German 88 mm gun used during World War II. This gun was originally designed as an anti-aircraft weapon but was adapted for use as a versatile field gun, proving effective against tanks and ground targets as well.
914 mm artillery by Wikipedia Bot 0
The term "914 mm artillery" typically refers to large-caliber artillery pieces designed to fire projectiles at long ranges. Specifically, the 914 mm caliber is most famously associated with the **Karl-Gerät** (or "Karl device"), a series of German siege mortars used during World War II. The Karl-Gerät was designed to breach fortifications and was notable for its enormous size and firepower. Its primary purpose was to destroy heavily fortified positions.
95 mm artillery by Wikipedia Bot 0
95 mm artillery refers to a type of artillery piece with a caliber of 95 millimeters. This caliber is often associated with specific types of field guns, howitzers, or mortars used by various armed forces. The 95 mm caliber was notably used in several countries during the 20th century, particularly during World War II and in the post-war period. Different nations developed their own artillery systems in this caliber, leading to variations in design, ammunition, and intended use.
Superguns by Wikipedia Bot 0
"Superguns" generally refers to a type of large artillery piece or cannon that is capable of firing large projectiles over long distances. The term gained notoriety in the 1980s and 1990s, particularly due to its association with military innovations and projects by various countries. One of the most notable examples was the "Gustav Gun," developed by Nazi Germany during World War II, which was designed to destroy heavily fortified targets.
An Electro-Magnetic Laboratory Rail Gun is a type of weapon system that uses electromagnetic forces to launch projectiles at high speeds. Unlike traditional firearms that rely on chemical propellants, rail guns utilize electric currents to produce strong magnetic fields. These fields interact with conductive projectiles (usually made from metal) that are slid along conductive rails, resulting in high-velocity launches. ### Key Components and Functionality: 1. **Rails**: The system consists of two parallel conductive rails.
Faule Grete by Wikipedia Bot 0
"Faule Grete" is a character from German folklore, often depicted as a lazy or gluttonous figure. Her name translates to "Lazy Greta" in English. Faule Grete is typically portrayed as a woman who is always seeking shortcuts to avoid work and responsibility, often with humorous or exaggerated consequences. The character can be found in various tales and stories, where her laziness leads to comedic situations.
Grose Bochse by Wikipedia Bot 0
The term "Grose Bochse" doesn't refer to a standard or widely recognized concept or entity in English or German. However, it seems to resemble "Große Bock," which could refer to a place or term in German-speaking regions. It's possible that you're referring to a specific phrase, cultural reference, or a particular name that has regional significance.
The Jahan Kosha Cannon, also known as the "Jahan Kosha" or "Sugarloaf Cannon," is a historical artillery piece located in the city of Dhaka, Bangladesh. It was cast in the 17th century and is known for its impressive size and intricate design. The cannon is made of bronze and is about 4.3 meters (14 feet) long, weighing approximately 3,600 kg (around 8,000 lbs).
Nuclear artillery by Wikipedia Bot 0
Nuclear artillery refers to large-caliber artillery pieces that are capable of firing nuclear projectiles, commonly referred to as nuclear shells. These shells contain a nuclear warhead instead of conventional explosive material. Nuclear artillery was developed during the Cold War as part of various nations' military arsenals, particularly by the United States. The concept includes various platforms, most notably the M65 Atomic Cannon, which was operational in the 1950s and 1960s.
Parrott rifle by Wikipedia Bot 0
The Parrott rifle is a type of muzzle-loading artillery piece that was designed by Robert Parker Parrott, a military engineer and ordnance officer in the United States during the 19th century. The design was notable for its unique rifled barrel, which featured a thick exterior made of wrought iron and a thinner interior that was rifled. This construction method allowed the Parrott rifle to withstand higher pressures from the explosive charges used in the cannon's projectiles.
Queen Elizabeth's Pocket Pistol refers to a historic small pistol that is believed to have been owned by Queen Elizabeth I of England. It is notable for its intricate design and craftsmanship, reflecting the artistry of the late 16th century. The pistol is often described as a beautiful and ornate piece, decorated with gold and silver inlays, as well as intricate engravings.
Cramér's theorem is a fundamental result in the field of large deviations theory, which examines the asymptotic behavior of the probabilities of rare events. Specifically, Cramér's theorem provides a way to quantify the likelihood of deviations of a sum of independent random variables from its expected value. The theorem states that if we have a sequence of independent and identically distributed (i.i.d.
Buchholz hydra by Wikipedia Bot 0
The Buchholz hydra is a concept from set theory and mathematical logic, particularly within the study of large cardinals and the foundations of mathematics. It was introduced by the mathematician Wolfgang Buchholz as a part of his work on proof theory and the analysis of formal systems. The Buchholz hydra is often discussed in the context of certain types of ordinal notations, especially in connection with ordinal collapsing functions and strong axioms of infinity.
Cutler's bar notation is a method used primarily in the field of statistics and time series analysis to represent the structure and relationships within a dataset or a statistical model visually. It's particularly useful for simplifying the interpretation of complex data sets. However, it seems that this notation is not well-documented or widely standardized, so the details may vary or be interpreted differently in various contexts.
Hyperoperation by Wikipedia Bot 0
Hyperoperations form a sequence of operations that extend beyond basic arithmetic operations (addition, multiplication, exponentiation) to more complex operations. The sequence of hyperoperations is defined recursively, starting from finite addition and building up through various levels of operations. Each level of hyperoperation is defined in terms of the previous level. Here's a brief overview of the first few hyperoperations: 1. **Addition (n=0)**: The first hyperoperation, defined as \( a + b \).
Knuth's up-arrow notation is a way to represent very large numbers, especially those that arise in combinatorial mathematics and computer science. It was developed by Donald Knuth in 1976 as a method to describe exponential towers and hyperoperations. The basic idea revolves around using arrows to denote repeated operations. Let's break it down: 1. **Single Arrow**: The notation \( a \uparrow b \) is equivalent to \( a^b \) (i.e.
Skewes's number by Wikipedia Bot 0
Skewes's number is a large number that arises in number theory, specifically in the context of prime numbers and the distribution of primes. It was originally derived by mathematician Stanley Skewes in the 1930s while studying the distribution of prime numbers and the zeros of the Riemann zeta function.
Steinhaus–Moser notation is a mathematical notation that is used to express very large numbers. It was introduced by mathematicians Hugo Steinhaus and Kurt Moser, and it extends the concept of Knuth's up-arrow notation. The notation provides a means to describe numbers that are much larger than those expressible in conventional exponential terms.

Pinned article: ourbigbook/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