An Electric Arc Furnace (EAF) is a type of furnace that uses electrical energy to melt and refine steel and other metals. It operates by generating an electric arc between electrodes and the metal charge, creating high temperatures that allow the metal to melt. EAFs are widely used in steelmaking, particularly for recycling scrap steel, as they are efficient and can be more environmentally friendly compared to traditional methods like blast furnaces.
The Six Factor Formula is a concept used in various fields but is most commonly associated with businesses and analytics. While there isn't a universally standardized "Six Factor Formula," the term may refer to frameworks or models that include six key components or variables that are essential for understanding a particular phenomenon, making decisions, or optimizing performance. For example, in marketing, a "Six Factor" framework could involve analyzing six crucial elements such as product, price, place, promotion, people, and process.
Synthetic elements are those that do not occur naturally on Earth and are instead artificially created in laboratories or nuclear reactors through nuclear reactions. These elements typically have very high atomic numbers and are often unstable, leading to rapid radioactive decay. Synthetic elements are produced by bombarding stable nuclei with particles, such as neutrons or protons, in a particle accelerator or a nuclear reactor.
A mutagen is an agent that causes mutations in the DNA of organisms. Mutagens can be physical agents, such as radiation (like X-rays or ultraviolet light), or chemical agents, such as certain pollutants or substances used in industrial processes. Biological agents, such as some viruses, can also be considered mutagens. Mutagens typically induce changes in the genetic material, which can lead to various effects, including cancer, hereditary diseases, and other genetic disorders.
The International Commission on Radiological Protection (ICRP) is an independent, international organization dedicated to the advancement of protection against radiation exposure. Established in 1928, the ICRP's primary goal is to provide guidance and recommendations on radiation safety and protection to help ensure the health and safety of individuals and populations exposed to ionizing radiation.
The Journal of Radiation Protection and Research is a scientific publication that focuses on various aspects of radiation protection, including research related to health effects, safety measures, regulations, and practices associated with radiation exposure. The journal typically publishes original research articles, reviews, case studies, and other types of scholarly work that contribute to the understanding and advancement of radiation protection. The audience for the journal includes researchers, professionals, and policymakers in fields such as health physics, environmental science, radiobiology, and public health.
The Juno Radiation Vault is a specialized protective compartment on NASA's Juno spacecraft, which was launched to study Jupiter. The vault was designed to shield critical electronics and instruments from the intense radiation environment found in the vicinity of Jupiter. Jupiter's magnetic field is the strongest in the solar system, and its radiation belts are filled with charged particles that can be harmful to spacecraft systems.
Radiation protection of patients refers to the measures and protocols implemented to safeguard patients from unnecessary exposure to ionizing radiation during medical procedures. This is particularly relevant in fields like radiology, nuclear medicine, and radiation therapy, where radiation is used for diagnosis and treatment of various medical conditions. Key principles of radiation protection for patients include: 1. **Justification**: Any use of radiation for medical purposes must be justified; that is, the benefits of the procedure must outweigh the risks associated with radiation exposure.
"Skyshine" can refer to different concepts depending on the context: 1. **In Astronomy**: It refers to the phenomenon where light from celestial bodies, such as the sun or moon, scatters through the atmosphere, creating a glowing effect in the sky, especially during sunrise or sunset. 2. **In Technology or Gaming**: "Skyshine" could refer to a specific product, company, or game.
2014 UZ224 is a trans-Neptunian object (TNO) that was discovered in 2014. It is part of the Kuiper Belt, a region of the solar system beyond the orbit of Neptune that contains many small icy bodies. 2014 UZ224 is classified as a scattered disk object, which means it has an elliptical and tilted orbit that can be influenced by the gravitational pull of the giant planets, particularly Neptune.
U is a designation for a specific trans-Neptunian object (TNO) that was discovered in the outer solar system. TNOs are icy bodies that orbit the Sun at a greater distance than Neptune. They are part of a larger group of objects known as the Kuiper Belt, which contains many similar bodies. The designation "U" is used here for clarity, as there can be multiple objects with similar naming conventions.
Finger rafting is a technique used in whitewater rafting, typically to enhance stability and safety during challenging river maneuvers. It involves passengers (rafters) placing their hands in a "fingering" position, gripping the sides or edges of the raft. This creates a connection between the raft and the paddlers, allowing for better control and transfer of energy when navigating through rapids or rough water. The technique can be particularly helpful in situations where team coordination is crucial for maintaining balance and speed.
Potassium sodium tartrate, also known as Rochelle salt, is a chemical compound with the formula KNaC₄H₄O₆. It appears as a colorless or white crystalline solid and is the potassium and sodium salt of tartaric acid. Rochelle salt is soluble in water and has a number of applications, including: 1. **Food Industry**: It can be used as a food additive and a stabilizing agent in certain food products.
The Kramers–Heisenberg formula is a fundamental result in the field of quantum mechanics and quantum electrodynamics (QED). It describes the scattering of photons by charged particles, particularly in the context of photon emission and absorption processes.
Optical conductivity is a fundamental property of materials that describes their ability to conduct electricity in response to an electric field oscillating at optical frequencies (typically in the range of terahertz to visible light). It reflects how well a material can transport electric charge when stimulated by electromagnetic radiation. Optical conductivity provides insight into a material's electronic structure and behavior, and it can be influenced by factors such as temperature, frequency of the light, and the presence of free carriers (like electrons) or bound charges.
A phase curve in astronomy refers to a graphical representation that illustrates how the brightness (or flux) of a celestial body changes with its phase angle or with time. The phase angle is the angle between the observer, the celestial body, and the light source (usually the Sun). Phase curves are particularly useful for understanding the reflective properties, surface conditions, or atmospheric properties of planets, moons, asteroids, and comets.
The Jost function is a mathematical concept used primarily in quantum mechanics, particularly in the analysis of one-dimensional scattering problems. It arises in the context of solving the Schrödinger equation for a potential, and is particularly important for understanding the properties of scattering states and bound states in a quantum system. In more detail, the Jost function is associated with the solutions of the radial or one-dimensional Schrödinger equation, which can be expressed in terms of a potential.
Partial-wave analysis is a technique used in quantum mechanics and particle physics to study scattering processes and the behavior of wavefunctions. It involves decomposing a complex scattering amplitude into contributions from different angular momentum states, which correspond to various "partial waves." When particles interact, they can scatter at different angles and energies.
Interstellar Media is a name that could refer to a few different things, depending on the context. It may refer to: 1. **Media Related to Space Exploration**: This could encompass a range of content—films, documentaries, books, or apps—that focus on space travel, astrophysics, and the broader themes of the universe, often using narratives or educational content to engage audiences with space science.

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