The term "string background" can refer to different contexts depending on the domain in which it is used. Here are a few interpretations: 1. **Music**: In music, particularly orchestral settings, a "string background" refers to the section of instruments made up of string instruments like violins, violas, cellos, and double basses. This section often provides the harmonic and melodic foundation of a piece, contributing to the overall texture and richness of the music.
Type I string theory is one of the five consistent superstring theories in ten dimensions. It is part of the broader framework of string theory, which posits that the fundamental constituents of the universe are one-dimensional "strings" rather than point-like particles.
"Ammunition stubs" typically refer to the leftover remnants of ammunition after it has been fired, specifically the cartridge cases that remain once a round is discharged. These stubs are often collected for various purposes, such as reloading, recycling, or forensic analysis. In some contexts, "stubs" might also refer to the physical remains of the ammunition that may include parts like the bullet (projectile), powder residue inside the casing, and the primer used to ignite the propellant.
In the context of firearms, a "magazine" is a device that holds ammunition for a firearm and provides a way to feed that ammunition into the chamber for firing. Magazines come in various shapes and capacities, designed for different types of firearms, including handguns, rifles, and shotguns. There are two primary types of magazines: 1. **Internal Magazines**: These are built into the firearm itself.
The history of weapons and ammunition spans thousands of years and includes a wide range of innovations and developments. Here's a brief overview of key weapons and ammunition introductions by century: ### Prehistoric Times - **Stone Tools and Weapons**: The earliest weapons were made from stone, including hand axes, spears, and arrows. ### Ancient History (c.
An aerial torpedo is a type of guided or unguided weapon designed to be dropped or launched from an aircraft, intended to strike targets on or near the surface of the water, such as ships or submarines. Aerial torpedoes are similar to traditional torpedoes but are specifically designed for aerial deployment. These weapons can be deployed from a variety of platforms, including bombers, fighter jets, or dedicated naval aircraft.
Centerfire ammunition is a type of cartridge that has its primer located at the center of the cartridge case head. This design contrasts with rimfire ammunition, where the primer is located on the rim of the cartridge. Centerfire cartridges are generally considered to be more robust and reliable than rimfire cartridges, as they can handle higher pressures and are suitable for a wider range of firearms, from handguns to rifles.
An Explosively Formed Penetrator (EFP) is a type of munition that uses an explosive charge to create a projectile, typically with a high degree of penetration capability. EFPs are designed to defeat armored targets, such as tanks or fortifications, by producing a solid metal projectile that is shaped and accelerated by the explosion.
Fuze is a cloud-based communications platform that provides a variety of services, including video conferencing, voice calling, messaging, and collaboration tools. It is designed primarily for businesses to facilitate communication and teamwork across different locations. Fuze integrates with various productivity applications and offers features such as screen sharing, file sharing, and team messaging, making it suitable for remote work environments and organizations looking to enhance their collaboration capabilities.
The term "M13 link" can refer to different concepts depending on the context. However, one of the most common references within the realm of astronomy is to the M13, also known as the Hercules Cluster. 1. **M13 (Hercules Globular Cluster)**: This is a globular star cluster located in the constellation Hercules. It contains several hundred thousand stars and is one of the most well-known globular clusters visible from the Northern Hemisphere.
Maynard tape primer is a specialized product used to prepare surfaces for the application of adhesive tapes, particularly in applications like construction, automotive, and industrial settings. The primer enhances the adhesion of the tape or adhesive to various substrates, ensuring a stronger and more durable bond. Typically, Maynard tape primer is applied to the surface where the tape will be affixed. It dries quickly and creates a tacky surface that allows the tape to stick more effectively than it would on an untreated surface.
Red Army Standard Ammunition is a brand associated with ammunition that is produced primarily for military and civilian use, designed to meet or exceed the specifications often associated with the ammunition once utilized by the former Soviet Union's Red Army. This brand may focus on a variety of calibers and types of ammunition, including both non-reloadable and reloadable options for firearms commonly used in military and civilian settings, such as AK-47s and other rifles.
In the context of firearms, "rim" usually refers to a rimmed casing design used in certain types of ammunition. Rimmed cartridges have a pronounced rim at the base of the cartridge case, which extends beyond the diameter of the case. This rim is useful for headspacing and extraction. The design helps to ensure that the cartridge is properly aligned in the chamber and allows for easier extraction from the chamber after firing.
"Smart bullet" can refer to a few different concepts depending on the context. Here are a couple of interpretations: 1. **Technology in Ammunition**: In military and defense contexts, "smart bullets" may refer to advanced ammunition or projectiles that are equipped with technology allowing them to be guided or controlled during flight. This can include features like GPS targeting, sensors to home in on targets, or even microprocessors that adjust their trajectory mid-flight to improve accuracy.
A Teflon-coated bullet is a type of ammunition that has a coating made from polytetrafluoroethylene (PTFE), commonly known as Teflon. This coating is often marketed with the claim that it allows the bullet to penetrate armor or other hard materials more effectively than traditional bullets. The idea is that the Teflon coating reduces friction as the bullet moves through the barrel and upon impact. However, the use of Teflon-coated bullets has been a controversial topic.
A torpedo is a self-propelled underwater weapon designed to be launched from submarines, ships, or aircraft. Its primary purpose is to target and destroy enemy vessels, including submarines and surface ships. Torpedoes are typically cylindrical in shape and can be equipped with various types of warheads, including high-explosive payloads.
The term "Bedil" can refer to a few different things: 1. **Abdul Qadir Bedil**: Often known simply as Bedil, he was a prominent 17th-century Afghan poet, philosopher, and mystic. Bedil is considered one of the most influential figures in Persian literature, and his work has had a significant impact on Urdu poetry. He is recognized for his complex themes and use of metaphysical concepts in his poetry.
Escape velocity is the minimum speed needed for an object to break free from the gravitational attraction of a celestial body, such as a planet or moon, without any further propulsion. This concept is essential in physics and planetary science, especially when discussing spacecraft launches and orbital mechanics. The escape velocity depends on the mass of the celestial body and the distance from its center of mass.
A geostationary orbit is a specific type of geosynchronous orbit that allows a satellite to remain in a fixed position relative to the surface of the Earth. This means that a satellite in a geostationary orbit appears to be stationary over a specific point on the Earth's equator.
Gravity assist, also known as a gravitational slingshot, is a maneuver used in spaceflight to increase or decrease the velocity of a spacecraft by utilizing the gravitational pull of a planet or moon. This technique allows spacecraft to gain energy and change their trajectory without using additional fuel, making it an efficient means of traveling through the solar system. Here's how it works: 1. **Approach the Body**: The spacecraft approaches the target celestial body (like a planet) at a specific angle and speed.

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