Polymer-cased ammunition refers to ammunition in which the casing is made primarily of polymer materials rather than traditional metals like brass or steel. This type of ammunition is designed to be lighter, potentially more durable, and resistant to corrosion compared to metal cases. The benefits of polymer-cased ammunition include: 1. **Weight reduction**: Polymer cases can be significantly lighter than metal cases, which can make carrying ammunition easier for soldiers and law enforcement personnel.
The term "Red Rocket" in the context of shotgun slugs typically refers to a specific type of shotgun ammunition designed for use in shotguns, specifically slugs that are often colored red for easy identification. These slugs are typically used for hunting or self-defense purposes, providing greater accuracy and stopping power compared to traditional shotgun pellets. The name "Red Rocket" isn't universally recognized and may refer to particular brands or regional colloquialisms.
A "snap cap" is a type of dummy cartridge designed for use in firearms. Primarily, snap caps are used for training and practice. They allow the user to cycle the action of a firearm without firing a live round, which can help in practicing malfunctions, dry-firing exercises, and ensuring that the firearm operates smoothly. The design usually includes a soft primer that can absorb the impact of the firing pin, helping to protect the firearm's internals during dry firing.
"Wadding" can refer to a few different concepts depending on the context: 1. **Textiles and Sewing**: In sewing and quilting, wadding is a type of padded material used to provide insulation, warmth, or cushioning. It is often made from cotton, polyester, or a blend of fibers and is placed between layers of fabric in quilts, blankets, and other textile projects.
Artillery stubs refer to a system used in software development, specifically in the context of testing and simulation. The term is often associated with stubbing in automated testing, where stubs are used to simulate the behavior of complex components that a system interacts with. In this context, "artillery stubs" could refer to specialized stubs used for testing applications that involve heavy artillery systems or simulations related to military operations.
The term "aircraft artillery" can refer to various types of weaponry mounted on or used by aircraft. This includes guns, cannon, and other armaments designed to be operated from a flying platform, primarily intended for offensive or defensive purposes. Here’s a list of some notable types of aircraft artillery: ### Fixed Wing Aircraft Armaments 1. **Boeing B-17 Flying Fortress** - Equipped with multiple .50 caliber machine guns.
A rifled muzzle loader (RML) is a type of firearm that employs rifling—helical grooves cut into the bore of the barrel—to stabilize a projectile and improve accuracy. Unlike smoothbore muzzle loaders, which have a smooth interior barrel and were typically used for shot or round balls, rifled muzzle loaders are designed to be loaded from the muzzle (the open end of the barrel) and use bullets with a diameter that fits tightly within the rifled barrel.
"Gravity loss" typically refers to a loss of potential energy that occurs in various contexts, particularly in physics and engineering. It is commonly associated with the launch of spacecraft and rockets, where it describes the energy lost due to the gravitational pull of a celestial body (like Earth) as a vehicle ascends. Gravity loss can significantly impact the performance and efficiency of a launch, as it requires additional energy to counteract the effects of gravity.
Nodal precession, often referred to in the context of celestial mechanics, describes the phenomenon where the orbit of a celestial body—such as a satellite or a planet around a star—slowly shifts its orientation over time. Specifically, it refers to the motion of the orbital nodes, the points where the orbit crosses a reference plane, commonly the plane of the ecliptic (the Earth’s orbital plane around the Sun).
Transposition, docking, and extraction can refer to different concepts depending on the context in which they are used. Here’s an overview of what these terms generally mean in various fields: ### 1. **Transposition**: - **Mathematics and Music**: In mathematics, transposition can refer to switching places of elements within matrices or vectors. In music, it involves changing the key of a piece, effectively shifting all notes up or down by the same interval.
The Journal of Chemical Physics (JCP) is a peer-reviewed scientific journal that publishes research articles in the field of chemical physics. It is an authoritative source for studies that bridge the disciplines of chemistry and physics, covering a wide range of topics such as molecular dynamics, thermodynamics, quantum chemistry, and spectroscopy, among others. Established in 1933, JCP is published by the American Institute of Physics (AIP) and has a reputation for high-quality, original research.
Porous media, often referred to as porous materials or porous media, are materials that contain pores (voids or spaces) within their structure. These pores can occupy a significant fraction of the volume of the material, allowing fluids (gases or liquids) to flow through them. Porous media can be found in various forms and applications, ranging from natural materials to engineered structures.
Radiation effects refer to the various biological, chemical, and physical impacts that ionizing radiation can have on living organisms and materials. Ionizing radiation includes particles (like alpha and beta particles) and electromagnetic waves (such as gamma rays and X-rays), which have enough energy to remove tightly bound electrons from atoms, thereby creating ions. ### Biological Effects 1. **Cellular Damage**: Ionizing radiation can cause direct damage to DNA and other vital cellular components.
Nickel-aluminium alloys are a specific type of alloy composed primarily of nickel and aluminum, often combined with other elements to enhance certain properties. These alloys are known for their excellent strength, corrosion resistance, and heat resistance, making them suitable for a variety of industrial applications. ### Key Characteristics: 1. **Corrosion Resistance**: Nickel-aluminium alloys exhibit strong resistance to oxidation and corrosion, which is particularly beneficial in harsh environments, such as marine applications or chemical processing.
Portugal is home to several model manufacturers that produce scale models, toys, and collectibles. Some of the notable ones include: 1. **Corgi** - While originally a British brand, Corgi has had some manufacturing operations in Portugal. 2. **Magma** - Known for its detailed scale models and specialized in the production of various vehicle models. 3. **Minichamps** - A brand that, while primarily German, has had collaborations with Portuguese manufacturers for certain products.
ChordPro is a format used for representing song lyrics and chord notations in a plain text file. It is widely used by musicians for creating and sharing chord sheets that are easy to read and edit. The format allows users to include chord symbols directly above the lyrics, making it straightforward for performers to identify where to play chords while singing.
The Tolman length is a concept in the field of cosmology and thermodynamics that is associated with the properties of black holes and the structure of spacetime. It specifically arises in the context of the study of black hole thermodynamics, where it serves as a measure of the effects of gravitational fields on temperature and thermodynamic properties.
The photoacoustic effect is a phenomenon in which materials absorb light and subsequently emit acoustic waves (sound waves) as a result of thermal expansion. This process occurs when a material absorbs photons from a light source (usually a laser), leading to a localized temperature increase. The rapid thermal expansion due to the absorbed energy creates mechanical stress in the material, which produces sound waves.
RDP shop typically refers to online platforms or marketplaces that sell Remote Desktop Protocol (RDP) access and services. RDP is a protocol developed by Microsoft that allows users to connect to a computer or server remotely, providing a graphical interface to the user. In the context of an RDP shop, the services offered may include: 1. **Rental of RDP Accounts**: Users can purchase access to virtual machines or dedicated servers with RDP enabled for a specified period.

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