HAIFA construction refers to a specific construction technique used primarily in the context of structural engineering and architecture. It is named after the city of Haifa in Israel, known for its diverse architectural styles and innovations in building practices. However, it’s important to note that the term "HAIFA construction" may not be widely recognized or defined in standard construction terminology. It could theoretically refer to local building styles, materials, or methods unique to the Haifa region or Israel in general.
KOV-14 is a variant of the coronavirus SARS-CoV-2, which causes the disease COVID-19. It is part of a lineage identified in research and monitoring of COVID-19 variants. Variants like KOV-14 emerge due to mutations in the virus's genetic material as it spreads through populations. These variants are monitored for potential changes in transmissibility, vaccine effectiveness, and severity of illness they may cause.
MESH, which stands for "Modified Encryption Standard for Home," is a block cipher that was designed to be efficient for use in home and small office environments. It is characterized by its simplicity and ease of implementation. MESH is constructed to provide a suitable level of security for applications where strong encryption is needed but where computational resources may be limited.
CrystEngCommunity is an online platform and community focused on crystallization and the field of crystallography. It aims to bring together researchers, scientists, and professionals who are interested in the study of crystal structures, properties, and related research areas. The community often shares information, resources, and discussions related to crystallization techniques, materials science, and the development and application of various crystallographic methods.
The Stone-Wales defect is a type of defect that can occur in graphene and other two-dimensional materials. It involves a local rearrangement of carbon atoms in the hexagonal lattice structure of graphene. The defect is characterized by the rotation of a pair of carbon-carbon bonds, which transforms one hexagonal ring in the lattice into a series of two adjacent pentagonal and heptagonal rings.
The Cottrell atmosphere refers to a specific electrochemical phenomenon that occurs during the mass transport of species in an electrochemical cell, particularly during voltammetric experiments. Named after the scientist who studied it, the Cottrell equation describes the current response of an electrochemical system under conditions of diffusion-controlled mass transport when an electrode is suddenly held at a potential that allows for faradaic reactions. In a Cottrell atmosphere, the current is proportional to the square root of time.
Geometrically Necessary Dislocations (GNDs) are a specific type of dislocation that arise in crystalline materials when there is a gradient in the plastic deformation across the material. Unlike ordinary dislocations, which can move freely in a homogeneously deformed material, GNDs are required to accommodate the non-uniform strain fields that often occur during processes such as bending, stretching, or otherwise non-uniform deformation of materials.
"Horrible Histories" is a British children's television series that first aired in 2009 and has continued in various forms, including a 2015 special series. It is based on the popular book series of the same name by Terry Deary. The show combines comedy, history, and educational content to engage younger audiences with historical events, figures, and everyday life in different eras.
Crystal chemistry is the branch of chemistry that studies the arrangement of atoms within crystalline solids, the relationships between the structure of these crystals and their physical properties, and the chemical interactions that govern their formation. It combines principles from chemistry, physics, materials science, and mineralogy to understand how crystal structures influence the behavior and characteristics of materials. Key aspects of crystal chemistry include: 1. **Crystal Structure**: This refers to the orderly geometric arrangement of atoms or molecules in a crystal.
Water of crystallization refers to the water molecules that are integrally associated with a crystalline solid. These water molecules are part of the structure of the compound and are essential for maintaining the stability and integrity of the crystal lattice. When certain salts and other compounds crystallize, they can incorporate water molecules into their structure. This incorporation of water can significantly affect the physical and chemical properties of the compound, including its solubility, color, and stability.
Boron-rich metal borides are a class of materials that typically have complex crystal structures due to the presence of boron in high concentrations. These compounds often contain transition metals, and their structure is characterized by the presence of various boron polyhedra and metal coordination entities.
Crystallization adjutants are substances that are used to promote or enhance the crystallization process of solid compounds from a solution. These materials can assist in controlling the size, shape, and purity of the resulting crystals, making them particularly important in various fields, including pharmaceuticals, food chemistry, and materials science. Crystallization is a common technique for purifying substances and can be influenced by many factors, including temperature, concentration, and the presence of additives.
Friedel's law is a principle in crystallography that relates to the symmetry of X-ray diffraction patterns. Specifically, it states that the intensity of diffracted X-rays from a crystal will be the same for reflections that are related by a center of symmetry (or inversion center).
A thermal ellipsoid is a three-dimensional geometric representation used in crystallography and molecular biology to visualize the thermal motion of atoms in a crystal structure. It illustrates the atomic displacement due to thermal vibrations, which are influenced by temperature. Each atom in a crystalline material oscillates around its equilibrium position, and the extent of this motion can be described by an ellipsoid. The shape and orientation of the ellipsoid provide information about the distribution and amplitude of atomic vibrations.
Thermal laser epitaxy (TLE) is a specialized growth technique used in materials science and semiconductor fabrication to create thin films or heterostructures with precise control over their composition and structure. The method typically involves the use of a focused laser beam to locally heat a substrate or a precursor material, thereby enabling the growth of crystalline films on the substrate based on thermally induced reactions.
A puncheon is a unit of measurement that can refer to both a volume and a weight, depending on the context. 1. **Volume**: In terms of volume, a puncheon is typically equivalent to around 120 gallons (approximately 450 liters) in the context of liquids such as wine or beer. Specifically, in the wine industry, a puncheon often refers to a barrel that holds a certain volume of wine or spirits.
"Little Ashes" is a 2008 biographical drama film directed by Paul Morrison. The film is set in the 1920s and explores the relationship between two prominent figures of the Spanish surrealist movement: the painter Salvador Dalí, played by Robert Pattinson, and the poet Federico García Lorca, portrayed by Javier Beltrán.
An octave is a unit of measurement used in music to describe the interval between two frequencies. Specifically, an octave is the interval between one musical pitch and another with double its frequency. For example, if one note has a frequency of 440 Hz (the standard pitch for the note A above middle C), the note one octave higher would have a frequency of 880 Hz, and the note one octave lower would have a frequency of 220 Hz.
"Critique of Cynical Reason" (originally "Kritik der zynischen Vernunft") is a philosophical work by the German philosopher Peter Sloterdijk, published in 1983. The text is an exploration of contemporary forms of cynicism, particularly how they relate to modernity, politics, and culture.
The 21st century has seen a number of notable Czech mathematicians contributing to various fields of mathematics, including number theory, algebra, topology, and applied mathematics. Some prominent figures include: 1. **Jan Šebestík** - Known for his work in mathematical logic and set theory. 2. **Petr P. Šafářik** - Engaged in various mathematical research areas, including combinatorics and graph theory.

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