Extraordinary magnetoresistance (EMR) is a phenomenon observed in certain materials, particularly in materials that have a complex interplay between their electronic structure and magnetic properties. EMR is characterized by a large change in electrical resistance when exposed to an external magnetic field. This effect is particularly notable in materials with a layered structure, such as certain ferromagnets or half-metals.
Electron by Wikipedia Bot 0
Electron is an open-source framework that allows developers to build cross-platform desktop applications using web technologies such as HTML, CSS, and JavaScript. It was created by GitHub and is widely used for creating applications that run on Windows, macOS, and Linux. Electron combines Chromium (for rendering the web content) and Node.js (for back-end capabilities) into a single runtime, enabling developers to use web development skills to create feature-rich desktop applications.
"Sri Lankan Tamil physicists" refers to physicists of Tamil ethnicity from Sri Lanka, a group that has contributed to various fields of physics both in Sri Lanka and around the world. This community is part of the larger Tamil ethnic group, which has a significant presence in Sri Lanka, particularly in the northern and eastern regions of the island. Sri Lankan Tamil physicists have worked in various branches of physics, including theoretical physics, applied physics, and interdisciplinary fields.
"Sinhalese physicists" likely refers to physicists who are of Sinhalese ethnic background, primarily from Sri Lanka. The Sinhalese are the largest ethnic group in Sri Lanka and have contributed to various fields, including science and academia.
Vicumpriya Perera by Wikipedia Bot 0
As of my last knowledge update in October 2023, there was no widely recognized individual, organization, or concept known as "Vicumpriya Perera." It is possible that it could refer to a private individual or a lesser-known subject. If there has been any notable development or person by that name since then, I would not have that information.
Van der Waerden notation refers to a way of denoting numbers associated with the field of Ramsey theory, particularly focusing on the concepts of partitioning and combinatorial numbers. It is often used in the context of the study of coloring finite sets and investigating the existence of monochromatic subsets.
Triality by Wikipedia Bot 0
Triality is a concept in theoretical physics and mathematics, particularly in the context of string theory and various algebraic structures. It refers to a duality relating three distinct theories or structures that can provide insights into the relationships between them. In the realm of string theory, triality is often associated with certain symmetry properties in higher-dimensional spaces. For example, the triality symmetry may reveal connections between different string theories or supersymmetric theories, illustrating how they can be transformed into one another under certain conditions.
Spinor by Wikipedia Bot 0
A spinor is a mathematical object used in physics, particularly in the fields of quantum mechanics and the theory of relativity. It is a type of vector that behaves differently than ordinary vectors under rotations and transformations. Specifically, spinors are essential in describing the intrinsic angular momentum (spin) of particles, such as electrons.
Pure spinor by Wikipedia Bot 0
A pure spinor is a special type of mathematical object used in theoretical physics, particularly in the context of string theory and supersymmetry. It is a specific kind of spinor that has certain properties, making it particularly useful for describing the dynamics of fermions (particles with half-integer spin) and for formulating theories that are Lorentz invariant.
Plate trick by Wikipedia Bot 0
The "plate trick" typically refers to a clever method used in various settings, often involving the use of plates or similar objects to demonstrate principles in science or to perform magic tricks. However, the term can also refer to different phenomena depending on the context, such as an optical illusion, a physics demonstration, or a magic performance.
171 (number) by Wikipedia Bot 0
The number 171 is a three-digit integer that comes after 170 and before 172. In terms of its mathematical properties: - It is an odd number. - It is a composite number, meaning it has factors other than 1 and itself. The factors of 171 are 1, 3, 9, 19, 57, and 171.
The Quantum Spin Hall (QSH) effect is a topological phase of matter characterized by the presence of edge states that conduct electricity without dissipation, while the bulk of the material remains insulating. It is a two-dimensional analogue of the three-dimensional Quantum Hall effect, but it occurs without the necessity of an external magnetic field.
The Quantum Hall Effect (QHE) is a quantum mechanical phenomenon observed in two-dimensional electron systems subjected to low temperatures and strong magnetic fields. It is characterized by the quantization of the Hall conductivity, which is the ratio of the transverse electric field to the longitudinal current density.
Dirac spinor by Wikipedia Bot 0
A Dirac spinor is a mathematical object used in quantum mechanics and quantum field theory to describe fermions, which are particles that follow the principles of Fermi-Dirac statistics. Named after the physicist Paul Dirac, the Dirac spinor is a specific type of complex-valued function that transforms under Lorentz transformations in a way consistent with the principles of relativity.
The Dirac equation in curved spacetime is an extension of the Dirac equation, which originally describes the behavior of spin-1/2 particles (like electrons) in flat spacetime, to a general curved spacetime described by general relativity. The original Dirac equation incorporates quantum mechanics and special relativity but does not take into account the effects of gravity.
The Chandrasekhar-Page equations describe the structure of a neutron star, specifically its equilibrium under the influence of gravity and the pressure of its degenerate matter. They are derived from the principles of general relativity and account for the balance between the gravitational forces trying to compress the star and the pressure exerted by the neutron fluid. The equations involve several critical parameters, including the mass, radius, and internal energy density of the star.
Bispinor by Wikipedia Bot 0
Bispinor is a term commonly associated with a class of quantum field theories, specifically in the context of theoretical physics and mathematics. In this context, bispinors refer to mathematical entities that can represent fermions (particles like electrons and quarks) in relativistic quantum mechanics and quantum field theory. Bispinors are constructed using the properties of the Dirac equation, which describes the behavior of spin-½ particles.
The term "anti-twister mechanism" is often associated with various types of mechanical or engineering systems designed to counteract or prevent twisting motions that could lead to structural failure or inefficiency.
"Speech at the Politeama" refers to a notable oration made by Italian composer and conductor Arturo Toscanini. It was delivered at the Politeama Theatre in Palermo, Sicily. Toscanini is renowned for his passionate approach to conducting and his commitment to the integrity of the music he interpreted.
The Prime Minister's New Year Message typically involves reflections on the past year and hopes for the upcoming year. It can include themes of unity, resilience, national progress, and aspirations for the future. The message often addresses citizens directly, encouraging them to face challenges together and highlighting government initiatives or policies that aim to improve the lives of the populace. The specific content can vary based on the current political, social, and economic context.

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