In mechanics, "suspension" refers to the system of components in a vehicle that connects the chassis to the wheels. Its primary functions are to support the weight of the vehicle, absorb shocks and vibrations from the road, and ensure that the tires maintain contact with the road surface for optimal traction, handling, and ride comfort.
Unilateral contact generally refers to a situation or agreement involving action or communication from one party without reciprocation or agreement from another party. This term can apply in various contexts: 1. **Legal Context**: In legal terms, unilateral contact might refer to a situation where one party initiates communication or action without the other party's involvement or agreement. For example, a creditor might make unilateral contact with a debtor to demand payment without having previously negotiated terms.
Surface finishing refers to a range of processes used to improve the appearance, performance, and durability of a material's surface. It involves various techniques to refine the texture, remove imperfections, enhance corrosion resistance, and create a specific aesthetic or functional quality on the surface of a product or component. Key purposes and benefits of surface finishing include: 1. **Aesthetics**: Improving the visual appeal of a product, by applying coatings, polishing, or other methods to achieve a desired look.
Pneudraulics is a branch of engineering that combines principles of both pneumatics and hydraulics to develop systems and equipment that utilize both gas (usually air) and liquid (usually hydraulic fluid) to perform work. **Key Concepts:** 1. **Pneumatics**: This involves the use of compressed air or gas to transmit power. Pneumatic systems are often used for applications that require quick, responsive movement, such as in tools, actuators, and conveyors.
The timeline of jet power is an evolution of technology that led to the development of jet engines and their implementation in aviation. Here's a concise timeline highlighting key milestones: ### Early Concepts (Before WWII) - **1910s**: Early concepts of jet propulsion are explored. Notably, the ideas of rocket propulsion emerged, laying groundwork for future jet engine developments.
Indian metalwork encompasses a rich and diverse tradition of crafting items from various metals, including gold, silver, copper, brass, and iron, among others. This art form has evolved over thousands of years, influenced by India's diverse cultures, regional practices, and historical periods. Indian metalwork includes a wide range of items, such as: 1. **Jewelry**: Indian metalwork is renowned for its ornate and intricate jewelry designs, often made of gold and silver.
Metal heat treatments are processes used to alter the physical and sometimes chemical properties of a metal to achieve desired characteristics, such as improved strength, hardness, ductility, toughness, or corrosion resistance. These treatments involve controlled heating and cooling of metals and alloys. Here are some common heat treatment methods: 1. **Annealing**: This process involves heating the metal to a specific temperature and then cooling it slowly, usually in air or a furnace.
Metalworking occupations encompass a range of jobs that involve the manipulation, shaping, and fabrication of metal products and components. These occupations are vital in various industries, including manufacturing, automotive, aerospace, construction, and jewelry making. The work can involve both hands-on tasks and the use of advanced machinery and tools. Some common metalworking occupations include: 1. **Metal Fabricator**: Individuals who cut, bend, and assemble metal structures and components using various tools and techniques.
A fillet weld is a type of weld used to join two pieces of metal at an angle, typically at a right angle (90 degrees). It is characterized by a triangular cross-section and is commonly used in structural and fabrication applications. Fillet welds can be made on the inside (corner weld) or outside of the joint, and they are typically used where the two pieces do not overlap but are instead joined along the edges or at a corner.
Brushed metal refers to a finish that has a texture created by brushing the metal surface with a fine abrasive. This process results in a distinct appearance characterized by fine lines or scratches in one direction, giving it a matte or satin-like finish. The brushing can be applied to various metals, including stainless steel, aluminum, and brass.
CNC plunge milling is a machining process that involves using a Computer Numerical Control (CNC) milling machine to perform plunge cuts into a workpiece. Plunge milling is characterized by the tool moving vertically downward into the material, rather than making a lateral or horizontal cut as is typical in traditional milling operations. ### Key Features of CNC Plunge Milling: 1. **Vertical Movement**: The milling cutter moves straight down into the material, which is effective for creating deep holes or pockets.
Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%. It is known for its excellent castability, durability, and wear resistance. The high carbon content allows cast iron to be easily cast into complex shapes and provides a very hard surface, making it suitable for a wide range of applications. There are several types of cast iron, including: 1. **Gray Cast Iron**: Contains graphite flakes that give it a gray appearance when fractured.
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.
The Morin transition refers to a specific magnetic phase transition observed in certain materials, particularly in hematite (α-Fe₂O₃), which is a common oxide of iron. At elevated temperatures, hematite typically exhibits antiferromagnetic properties, where neighboring magnetic moments (spins) align in opposite directions.
Superparamagnetic relaxometry is a technique used to study the magnetic properties of superparamagnetic nanoparticles and materials. Superparamagnetism is a phenomenon that occurs in small magnetic particles, typically on the nanometer scale, where the particles exhibit magnetic behavior similar to that of bulk ferromagnets but without any permanent magnetization in the absence of an external magnetic field.
The Wiedemann effect refers to the phenomenon where a magnetic field influences the thermal conductivity of a material. Specifically, it describes the observation that the thermal conductivity of a metal can change in the presence of a magnetic field, affecting how heat is conducted through the material. This effect is particularly relevant in the study of superconductors and metals with significant electron interactions, where the interplay between thermal and electrical properties can be profoundly influenced by external magnetic fields.
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!
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 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.Figure 3. Visual Studio Code extension installation.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. - 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