Stanley Cohen (born 1922) is an American physicist known for his contributions to the field of experimental physics, particularly in the area of nuclear and particle physics. He is perhaps best known for his work in the development of the field of biophysics and genetic engineering, notably for his role in the discovery and development of recombinant DNA technology.
As of my last knowledge update in October 2023, Ursula Gibson is an academic and researcher known for her work in the field of materials science and engineering. She has published various papers and has contributed to advancements in materials characterization and nanotechnology. Additionally, she may be involved in teaching and mentoring students in her field.
William E. Thornton is a former NASA astronaut and a retired U.S. Navy Captain. He was born on June 23, 1929, and is known for his contributions to space exploration. Thornton flew on two Space Shuttle missions: STS-8 in 1983 and STS-51J in 1985. During these missions, he participated in various scientific experiments and contributed to the advancement of space technology.
A headstamp is the marking that appears on the base of a bullet cartridge. It typically includes information such as the manufacturer's name, the caliber of the ammunition, and sometimes additional details such as the year of manufacture or a specific lot number. Headstamps serve several purposes, including identifying the source of the ammunition and providing important information for users, such as collectors and reloaders. The markings can vary in design and style depending on the manufacturer and the type of ammunition.
William J. Nellis is a notable figure known primarily for his contributions to the field of business and management, particularly in relation to corporate finance and risk management. However, specific information about his biography and accomplishments may vary or be limited. It’s possible that he has been involved in academia, consulting, or industry, but without more context, it is unclear which particular William J.
Willis Whitfield is known for his significant contributions to the field of engineering, particularly in the development of the cleanroom technology. He was an American engineer and scientist who worked for Sandia National Laboratories. Whitfield is credited with inventing the concept of the "cleanroom," which is a controlled environment with low levels of pollutants, such as dust, airborne microbes, and chemical vapors.
9N24 is a designation that could refer to various things depending on the context. Without additional details, it's hard to pinpoint what you are specifically asking about. Here are a few possibilities: 1. **A Product Code or Model Number**: It could represent a specific product, part, or model in various industries, such as electronics, machinery, or automotive.
The term "11.3×36mmR" refers to a specific type of ammunition, particularly a type of rimmed cartridge. 1. **Caliber**: The "11.3" in the name indicates that the bullet diameter is approximately 11.3 millimeters, which is roughly equivalent to .445 inches. 2. **Length**: The "36mm" indicates that the cartridge case is 36 millimeters long.
The term "120×570mm NATO" refers to a specific type of ammunition used for tank cannons, most notably the smoothbore cannon found in modern main battle tanks, such as the Leopard 2 and the M1 Abrams. Here's a breakdown of the terminology: - **120 mm**: This indicates the caliber of the projectile, which is 120 millimeters in diameter.
The term "Dirty Harry round" typically refers to the .44 Magnum cartridge, which was popularized by the character Harry Callahan, played by Clint Eastwood in the film "Dirty Harry" (1971). In the movie, Harry Callahan famously refers to his .44 Magnum as "the most powerful handgun in the world," highlighting its significant stopping power and effectiveness for law enforcement and self-defense at the time. The .
Bandolier can refer to a couple of different things, depending on the context: 1. **Historical Context**: In a historical and military context, a bandolier is a type of shoulder belt or strap that is used to hold ammunition, usually consisting of several loops or pockets. Bandoliers were commonly used by soldiers to carry cartridge cases or bullets, allowing for quick access to ammunition in combat situations. They can be made from various materials, including leather and cloth.
The term "belted magnum" refers to a type of cartridge design in the field of firearms and ammunition. The term "belted" indicates that the cartridge has a pronounced belt around its case, which serves several purposes: 1. **Headspacing**: The belt helps to provide a consistent and reliable point for the cartridge to headspace (the position in relation to the chamber) when it is chambered in a firearm.
A cylindro-conoidal bullet is a type of projectile used in firearms, characterized by its elongated shape that tapers to a point at one end. The design combines cylindrical and conoidal (cone-shaped) forms, which allows for improved aerodynamics and accuracy compared to traditional round bullets. The cylindrical portion gives the bullet stability in the barrel, while the conoidal taper helps reduce air resistance during flight.
Frangibility refers to the property of a material or object that makes it breakable or easily fractured. In a broader sense, it denotes the ability of a substance to be fragmented or shattered under stress or impact. The term is often used in contexts related to physical materials, such as glass, ceramics, or certain types of plastics, which can exhibit frangibility due to their structure.
Hydra-Shok is a type of ammunition designed for self-defense and law enforcement applications. It is produced by Federal Premium Ammunition, a well-known manufacturer in the firearms industry. Hydra-Shok bullets are characterized by their unique design, which includes a central post or "center core" in the hollow point. This design is intended to promote controlled expansion upon impact, allowing the bullet to create a larger wound channel while retaining weight and improving penetration.
Insensitive munitions (IM) are a class of explosives and ordnance designed to reduce the risk of accidental detonation due to heat, shock, or impact. Unlike traditional munitions, which can be highly sensitive to such stimuli, insensitive munitions are engineered to remain stable and safe under extreme conditions, including fire, fragmentation, or other physical stresses.
MEI Mercury refers to a line of coin and bill acceptors produced by MEI (Mars Electronics International), which is a company that specializes in payment systems and automated service equipment. MEI Mercury acceptors are designed for use in various vending machines, gaming machines, and other automated services where cash transactions are processed. These devices typically feature advanced technologies for detecting and authenticating coins and bills, ensuring secure and accurate transactions.
A pinfire cartridge is a type of ammunition that was prevalent in the 19th century. It was one of the earliest forms of self-contained cartridges, which combine the bullet, powder, and primer in a single unit. The pinfire cartridge features a pyrotechnic primer that is activated by a pin on the firearm's hammer striking the exposed pin on the cartridge's side. When struck, the pin ignites the primer, which in turn ignites the gunpowder and fires the bullet.
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





