Asymmetry refers to a lack of equality or equivalence between parts or aspects of something, resulting in an imbalance or disproportion. This concept can be applied in various contexts, including: 1. **Mathematics and Geometry**: In geometry, an asymmetrical shape does not have mirror symmetry or rotational symmetry. For example, a scalene triangle, where all sides and angles are different, is asymmetrical.
CPT symmetry is a fundamental principle in theoretical physics that combines three symmetries: Charge conjugation (C), Parity transformation (P), and Time reversal (T). 1. **Charge Conjugation (C)**: This symmetry relates particles to their antiparticles. For example, it transforms an electron into a positron and vice versa. 2. **Parity Transformation (P)**: This symmetry involves flipping the spatial coordinates, effectively reflecting a system through the origin.
Coxeter notation is a way of representing regular polytopes and their higher-dimensional analogs (such as regular polygons, polyhedra, and polychora) using a system based on pairs of numbers. It employs a compact notation that often consists of a string of integers, occasionally including letters or specific symbols to indicate certain geometric properties, relations, or symmetries.
A crystallographic point group is a mathematical classification of the symmetry of a crystal structure. These groups describe the symmetry operations that leave at least one point (typically the origin) invariant, meaning those operations do not alter the position of that point. The main symmetry operations included in crystallographic point groups are: 1. **Rotation**: Turning the crystal around an axis. 2. **Reflection**: Flipping the crystal across a plane.
Cymatics is the study of visible sound and vibration. The term is derived from the Greek word "kyma," meaning "wave." It refers to the phenomenon where sound waves create visible patterns in a medium, usually a viscous substance like water or a powder. In cymatics, sound frequencies are applied to a surface, causing it to resonate.
The FKG inequality, named after its contributors Fortuin, Kasteleyn, and Ginibre, is a result in probability theory that provides a relationship among joint distributions of certain random variables, particularly in the context of lattice structures, such as spins in statistical mechanics. It is most commonly applied in the study of lattice models in statistical physics, including the Ising model.
Inversion transformation typically refers to an operation used in various fields, including mathematics, computer science, statistics, and image processing. The specific meaning can vary based on the context, but here are a few common interpretations: 1. **Mathematics**: In mathematics, an inversion transformation often refers to a transformation that maps points in a space such that points are inverted relative to a particular point (the center of inversion) or a shape (like a circle or sphere).
A **non-Euclidean crystallographic group** refers to a symmetry group that arises in the study of lattices and patterns in geometries that are not based on Euclidean space. Crystallographic groups describe how a pattern can be repeated in space while maintaining certain symmetries, including rotations, translations, and reflections. In Euclidean geometry, the classifications of crystallographic groups are based on the 17 two-dimensional plane groups and the 230 three-dimensional space groups.
In geometry, symmetry refers to a property of a shape or object that remains unchanged under certain transformations, such as reflection, rotation, translation, or scaling. A geometric figure is said to be symmetric if there is a way to map it onto itself while preserving its overall structure and appearance.
Supersymmetry (SUSY) is a theoretical framework in particle physics that proposes a symmetry between two basic classes of particles: fermions (which make up matter, like electrons and quarks) and bosons (which mediate forces, like photons and gluons). In a fully realized supersymmetric model, each particle in the Standard Model of particle physics would have a superpartner with differing spin.
Hella is an American instrumental rock band formed in 2001 in Sacramento, California. Known for their complex compositions and virtuosic musicianship, the band is often associated with the math rock genre, characterized by intricate rhythms and time signatures. The core members of Hella are drummer Zach Hill and guitarist Spencer Seim. Hella gained recognition for their energetic live performances and unique sound, which combines elements of punk, noise rock, and experimental music.
Off Minor is an American musical group known for its unique blend of post-hardcore and emo influences. Formed in the early 2000s, the band is recognized for its intricate song structures and emotionally charged lyrics. Off Minor has garnered a following in the underground music scene and is often associated with the "screamo" genre movement, characterized by dynamic shifts between melodic passages and aggressive vocal deliveries.
Pinegrove is an American rock band formed in 2010 in Montclair, New Jersey. The band's sound blends elements of indie rock, folk, and alternative country, characterized by introspective lyrics, intricate instrumentation, and a warm, resonant style. The core of the band is frontman Evan Stephens Hall, who is known for his poetic songwriting and distinctive voice.
"Polvo" can refer to several different things depending on the context: 1. **Culinary:** In culinary terms, "polvo" is Spanish for "octopus." Dishes featuring polvo are common in various cultures, particularly in Mediterranean and Latin American cuisines. 2. **Music:** Polvo is also the name of an American indie rock band formed in the early 1990s. They are known for their complex song structures and incorporation of various musical styles.
Shiner is an American alternative rock band that originated in the early 1990s. Formed in 1992 in Kansas City, Missouri, the band's lineup typically includes lead vocalist and guitarist Josh Newton, guitarist and backing vocalist Allen Epley, bassist and backing vocalist Doug McNair, and drummer Jason Gerken. Shiner is known for their distinctive sound that blends elements of post-hardcore, alternative rock, and indie rock.
"Directed infinity" is not a standard term in mathematics or physics, but it could refer to various concepts depending on the context. Here are a couple of interpretations: 1. **Extended Real Number Line**: In calculus and real analysis, the concept of directed infinity might refer to the idea of limits approaching positive or negative infinity. In this context, we often talk about limits where a function approaches positive infinity as its input approaches a certain value, or negative infinity for some other input direction.
As of my last knowledge update in October 2021, there is no widely recognized figure or notable event associated with the name Ethan Buckler. It is possible that Ethan Buckler could refer to a private individual, a fictional character, or a more recent figure that has gained prominence after my last update.
Youthmovies was a British post-rock band formed in 2000. They were known for their dynamic sound, combining elements of rock, math rock, and post-rock, and often incorporating complex arrangements and emotive vocals. The band's music features an eclectic mix of genres, with influences ranging from indie rock to experimental music. Youthmovies gained a following for their energetic live performances and critical acclaim for their recordings. They released several EPs and full-length albums before disbanding in 2008.
Alexandrov's theorem is a result in the field of differential geometry, specifically regarding the properties of convex polyhedra and surfaces. There are a few key aspects to Alexandrov's work, but one of the most notable results often associated with his name is related to the characterization of convex polyhedra in terms of their geometric properties.
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!
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 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. - 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





