140 mm artillery typically refers to artillery pieces that fire projectiles with a diameter of 140 millimeters. This caliber falls within the category of medium to heavy artillery. Artillery systems of this size can include towed howitzers, self-propelled guns, and multiple launch rocket systems. Historically, various countries have developed 140 mm artillery systems, often used for indirect fire support in military operations.
160 mm artillery refers to a type of artillery piece that has a caliber of 160 millimeters (mm). This caliber falls within the category of heavy artillery, which is used for bombardment and providing indirect fire support in military operations. Artillery of this caliber can come in various forms, including towed howitzers, self-propelled guns, and mortars.
225 mm artillery typically refers to a type of large caliber artillery piece that fires 225 mm (approximately 8.9 inches) diameter shells. This caliber of artillery is generally used for heavy bombardment and can deliver high-explosive, fragmentation, or specialized munitions over considerable distances.
250 mm artillery typically refers to a type of heavy artillery piece that fires projectiles with a diameter of 250 millimeters (approximately 9.8 inches). This size falls into the category of large caliber artillery systems, which were primarily used during wars to deliver significant firepower over long distances.
The term "330 mm artillery" typically refers to large-caliber artillery pieces that fire projectiles with a 330 mm diameter. Such large-caliber artillery systems can be used in various military applications, including siege warfare, long-range bombardment, and indirect fire support. One notable example of 330 mm artillery is the **BM-30 Smerch**, a multiple rocket launcher system developed in the Soviet Union.
85 mm artillery generally refers to artillery pieces or ammunition with an 85 millimeter caliber. One of the most notable examples is the 85 mm D-44 field gun, which was developed in the Soviet Union during World War II and used extensively during the post-war period. The D-44 is a towed artillery piece that was designed for indirect fire and is known for its relatively high mobility and effective range, making it suitable for various combat situations.
"Dulle Griet," also known as "Mad Meg," is a painting by the Flemish artist Pieter Bruegel the Elder, created around 1562. The artwork depicts a wild woman leading a charge into hell, surrounded by a chaotic scene filled with various characters, demons, and surreal elements. The central figure, Dulle Griet, is often interpreted as a representation of gluttony or vice, challenging the societal norms of her time.
Tiro de Diu, also known as "Diu," is a traditional board game from the Indian subcontinent, particularly popular in the regions of Gujarat and Maharashtra. This game is often played in villages during festivals or gatherings for fun and entertainment. The game's name translates to "throw of dice," and it typically involves players taking turns to roll dice and move pieces on the board, similar to other games like Ludo or Parcheesi.
Dielectric heating, also known as dielectric loss heating or RF (radio frequency) heating, is a process in which electromagnetic energy is converted into heat within non-conductive (dielectric) materials. This occurs when alternating electric fields are applied to these materials, causing dipolar molecules (such as water molecules) to rotate and align themselves with the electric field. As these molecules shift back and forth with the changing field, they collide with neighboring molecules, transferring energy and generating heat through friction.
The Drude model is a classical model that describes the electrical and thermal properties of metals. Developed by physicist Paul Drude in 1900, this model treats conduction electrons in a metal as a gas of free, non-interacting particles. It provides a simple framework for understanding how electrical conductivity arises in metals and is foundational in solid-state physics.
Landau quantization is a phenomenon that occurs in quantum mechanics, particularly in the context of charged particles subjected to a strong magnetic field. It was named after the Soviet physicist Lev Landau, who first described it in the 1930s. When a charged particle, such as an electron, moves in a uniform magnetic field, it experiences a quantization of its energy levels due to the Lorentz force acting on it.
Enamel tufts are small, ribbon-like structures found within the enamel layer of teeth. They are considered to be defects or irregularities that occur during the formation of enamel. Enamel, the hard outer layer of teeth, is composed primarily of hydroxyapatite crystals, and it is formed by the activity of ameloblasts, the cells responsible for enamel production.
The Koenigsberger ratio is a dimensionless parameter used in engineering and materials science to quantify the stability of a structure, particularly in the context of masonry and other types of load-bearing materials. It is defined as the ratio of the maximum compressive stress that a structure can withstand to the effective stress acting on it.
Magnetostriction is a phenomenon in which a material changes its shape or dimensions in response to an applied magnetic field. This effect occurs in ferromagnetic and ferrimagnetic materials, where the arrangement of magnetic moments (magnetization) affects the lattice structure of the material. Essentially, as the magnetic domains within the material align in the presence of a magnetic field, the resulting changes in magnetization can lead to a mechanical strain.
OpenDoc, short for OpenDocumenation, is a term that can refer to different contexts depending on the area of focus. However, it is most commonly associated with two main usages: 1. **OpenDoc (Software Architecture)**: This was a software architecture developed by Apple in the 1990s. OpenDoc aimed to provide a way for different software applications to share and integrate functionality, allowing users to work with different types of data and tools seamlessly.
Mendelian randomization (MR) is a statistical method used in epidemiology and genetics to evaluate causal relationships between risk factors (exposures) and health outcomes (diseases) using genetic variants. The technique leverages the principle of Mendelian inheritance, which refers to how genes are passed from parents to offspring.
Soundtrack Pro was a professional audio editing software developed by Apple Inc. that was part of the Final Cut Studio suite. It was primarily designed for sound editing and audio post-production, providing tools for recording, editing, and mixing audio tracks. Users could perform a variety of tasks, such as cleaning up audio, adding effects, and creating sound design for video projects. Soundtrack Pro offered features like multi-track editing, a user-friendly interface, and integration with other Apple video and audio software.
A Bratteli diagram is a graphical representation used in the study of certain types of mathematical structures, particularly in the fields of operator algebras and dynamical systems. It is named after the mathematician Ole Bratteli, who introduced this concept. ### Key Features of Bratteli Diagrams: 1. **Structure**: A Bratteli diagram is a directed graph comprised of vertices and edges.
The term "Pairwise Algorithm" can refer to various algorithms that operate on pairs of elements, and its specific meaning may vary based on the context in which it is used.
Graph data structures are a mathematical representation used to capture relationships between pairs of objects. A graph consists of two fundamental components: 1. **Vertices (or Nodes)**: These are the individual entities or points in the graph. Each vertex represents an object in the data set. 2. **Edges**: These are the connections or relationships between the vertices. An edge can connect two vertices and may represent various types of associations, such as friendship in social networks, pathways in maps, or relationships in databases.
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
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. - Infinitely deep tables of contents:
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





