Metal foam by Wikipedia Bot 0
Metal foam is a lightweight cellular structure made from metal, which consists of a network of gas-filled pores or voids that are distributed throughout the material. This structure provides a high strength-to-weight ratio, making metal foams useful in a variety of applications where lightweight materials are needed without sacrificing mechanical properties.
The Wood–Armer method is a technique used in soil mechanics, particularly for the determination of the moisture content and density of a soil sample. This method is often utilized for characterizing granular soils, allowing engineers and geologists to assess the compaction and stability of soil in various construction and civil engineering applications. In the Wood–Armer method, a specific volume of the soil sample is taken, and its weight is measured.
Ballistic foam by Wikipedia Bot 0
Ballistic foam is a type of material that is designed to provide protection against impacts, specifically from projectiles such as bullets or shrapnel. It is often used in various applications related to military and law enforcement, as well as in personal protective equipment and vehicle armor. Ballistic foam is typically lightweight and capable of absorbing and dissipating energy from incoming projectiles. It can be made from various materials, such as polyurethane or polyethylene foams, which are engineered to achieve specific performance characteristics.
Carbon nanofoam by Wikipedia Bot 0
Carbon nanofoam is a type of nanostructured carbon material characterized by its unique properties, including a high surface area, low density, and exceptional mechanical strength. It is composed of a network of interconnected carbon atoms, often arranged in a porous structure that resembles a foam. This material can be produced through various methods, such as laser ablation or chemical vapor deposition.
Polyimide foam by Wikipedia Bot 0
Polyimide foam is a type of polymer foam that is derived from polyimide, a high-performance thermosetting polymer known for its excellent thermal stability, mechanical properties, and resistance to chemicals and radiation. Polyimide foams are lightweight, have low thermal conductivity, and are often used in applications where high-temperature resistance and insulation are critical.
Titanium foam by Wikipedia Bot 0
Titanium foam is a lightweight, porous material made from titanium metal. It is characterized by its unique cellular structure, which consists of a network of interconnected pores or voids. This innovative material combines the desirable properties of titanium—such as high strength-to-weight ratio, excellent corrosion resistance, and biocompatibility—with the benefits of reduced density and increased surface area resulting from the foam structure.
Agar by Wikipedia Bot 0
Agar is a gelatinous substance derived from red algae, specifically from the cell walls of certain species of seaweed. It is primarily composed of agarose and agaropectin, which are polysaccharides. Agar is commonly used in various applications, including: 1. **Culture Medium**: In microbiology, agar serves as a solid medium for growing bacteria and fungi in laboratory settings. Different types of agar, such as nutrient agar and agar plates, provide nutrients needed for microbial growth.
Ludwig Pohl by Wikipedia Bot 0
Ludwig Pohl could refer to several entities, but without additional context, it's difficult to provide a specific answer. If you're referring to a historical figure, a contemporary person, or perhaps a brand or organization, please provide more details so I can assist you better.
Polyacrylamide by Wikipedia Bot 0
Polyacrylamide is a synthetic polymer derived from the acrylamide monomer. It is commonly used in various applications due to its hydrophilic properties and ability to form gels. Here are some key points about polyacrylamide: 1. **Chemical Structure**: Polyacrylamide is formed through the polymerization of acrylamide, and its structure consists of repeating units of the acrylamide monomer, which gives it its high molecular weight.
Thickening agent by Wikipedia Bot 0
A thickening agent is a substance added to a liquid to increase its viscosity, which helps to create a thicker or more gelatinous consistency. Thickening agents are commonly used in various industries, including food production, cosmetics, pharmaceuticals, and oil drilling. In cooking, thickening agents can include: 1. **Starches**: Such as cornstarch, wheat flour, and tapioca. These are often used to thicken sauces, soups, and gravies.
Cholesteryl chloride is a chemical compound derived from cholesterol. It is an ester formed when the hydroxyl (-OH) group of cholesterol is replaced by a chloride (-Cl) group. The chemical structure can be represented as C_27H_45ClO. Cholesteryl chloride is typically used in biochemical and pharmaceutical research, especially in studies related to lipid metabolism, membrane biology, and the synthesis of lipophilic drug compounds.
Columnar phase by Wikipedia Bot 0
The columnar phase refers to a specific type of organization of certain materials, particularly in the context of liquid crystals and some types of crystal structures. Here's a breakdown of the concept: 1. **Liquid Crystals**: In the context of liquid crystals, the columnar phase is a type of ordered state where the molecules are organized into elongated, rod-like structures that form columns.
Homogeneous alignment is a concept often used in the study of materials, especially in the fields of physics, materials science, and engineering. It refers to a uniform arrangement of structural features, properties, or characteristics throughout a material or system. In the context of materials, homogeneous alignment might pertain to the uniform distribution of grains in metals, the consistent orientation of polymer chains, or the organization of molecules in a liquid or crystalline solid.
Photoalignment by Wikipedia Bot 0
Photoalignment is a process used in material science and engineering, particularly in the field of liquid crystal displays (LCDs) and photonic devices. It involves the alignment of molecular or polymeric materials through exposure to light, usually UV (ultraviolet) or polarized light. The technique is based on the principle that light can influence the orientation of certain materials, typically those that are photosensitive or have photoresponsive properties.
Vectra (plastic) by Wikipedia Bot 0
Vectra is a brand name for a type of high-performance thermoplastic known as liquid crystal polymer (LCP). These materials are notable for their exceptional thermal and chemical stability, as well as their mechanical strength. Vectra is often used in applications that demand materials capable of withstanding high temperatures and harsh environments, such as in the automotive, aerospace, and electronics industries.
Water by Wikipedia Bot 0
Water is a chemical substance composed of two hydrogen atoms covalently bonded to one oxygen atom, represented by the chemical formula H₂O. It is a transparent, odorless, tasteless liquid at room temperature and is essential for all known forms of life. Here are some key characteristics and aspects of water: 1. **States of Matter**: Water naturally occurs in three states—liquid (water), solid (ice), and gas (water vapor or steam), depending on temperature and pressure.
CRC Industries by Wikipedia Bot 0
CRC Industries is a company that specializes in the development and manufacturing of a wide range of products focused on maintenance, repair, and operations (MRO) for various industries. Founded in 1958 and headquartered in Warminster, Pennsylvania, CRC offers products such as lubricants, rust inhibitors, cleaning agents, sealants, and other specialty chemicals. The company serves diverse markets, including automotive, industrial, marine, and consumer applications.
Ethylene bis(stearamide), often abbreviated as EBS, is a chemical compound that belongs to a class of compounds known as amides. It is derived from stearic acid and is characterized by the presence of two stearamide groups linked by an ethylene moiety. Its chemical formula can be represented as C36H70N2O2, highlighting that it contains a long hydrocarbon chain, making it a fatty amide.
JASO M345 by Wikipedia Bot 0
JASO M345 is a Japanese automotive standard established by the Japanese Automobile Standards Organization (JASO) that pertains to engine oils, specifically for vehicles using gasoline engines. This standard sets out the performance requirements and test methods for engine oils intended for use in modern gasoline engines. JASO M345 includes classifications for engine oils based on their performance in terms of lubrication, oxidation stability, wear protection, and other critical characteristics essential for ensuring optimal engine performance and longevity.
Nye Lubricants by Wikipedia Bot 0
Nye Lubricants, Inc. is a company that specializes in the development and manufacturing of high-performance lubricants and specialty fluids. Established in 1844, Nye Lubricants provides a wide range of products designed for various applications, including automotive, aerospace, electronics, industrial, and medical devices. The company's product offerings include both lubricants for standard applications and specialized formulations tailored to specific customer needs.

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