A Principal Meridian is a fundamental reference line used in the Public Land Survey System (PLSS) in the United States. The PLSS is a method for surveying and categorizing land to facilitate property ownership and land management. The Principal Meridian serves as a starting point for defining the township and range system used in the PLSS. Each Principal Meridian is associated with a specific geographic area and is typically accompanied by a Baseline, which runs perpendicular to it.
In the context of matrices, the term "balanced matrix" can refer to a few different concepts depending on the specific field of study: 1. **Statistical Balanced Matrices**: In statistics, particularly in experimental design, a balanced matrix often refers to a design matrix where each level of the factors has the same number of observations. This ensures that the estimates of the effects are not biased due to unequal representation.
Elena Deza is a character from the popular Japanese visual novel and dating simulation game series known as "Danganronpa." She is one of the students who participates in the game, which revolves around a deadly survival game where characters must solve murders and face moral dilemmas. Elena is often characterized by her unique personality traits and plays a significant role in the story's development.
Emporius can refer to various entities depending on context, but it is most commonly known as a term associated with commerce or trade. In ancient Greek, "emporia" referred to trading posts or markets where merchants would gather to buy and sell goods. Additionally, "Emporius" is also a name used by some contemporary businesses, platforms, or technologies, often related to e-commerce, trading, or financial services.
It seems that there isn't any widely known information or notable reference regarding "Barbara Wohlmuth" in publicly available sources up to October 2023. It's possible that she may not be a public figure or that information may be limited or context-specific.
Belt friction refers to the frictional force that occurs between a belt and the pulleys or surfaces over which it travels. This concept is important in mechanical engineering, particularly in the design and operation of belt-driven systems, such as conveyor belts, transmission belts, and various industrial machines. Belt friction is influenced by several factors: 1. **Material Properties**: The type of material used for the belt and the surface of the pulley can significantly affect the friction.
A belt transect is a research method used in ecology and environmental science to study and survey the distribution of plant and animal species across a specific area. It involves setting up a narrow strip (or "belt") that runs along a specific path or line through a habitat. The belt is usually of a fixed width, for example, 1 meter wide, and can vary in length depending on the study's objectives.
Computational astronomy is a subfield of astronomy that utilizes computational techniques, algorithms, and models to solve complex problems and analyze astronomical data. It encompasses a wide range of activities, including: 1. **Data Analysis**: Processing and interpreting large datasets collected from telescopes, satellites, and other astronomical instruments. This involves using statistical methods, machine learning, and data mining techniques.
Beta Attenuation Monitoring (BAM) is a method used to measure particulate matter concentration in the air. It relies on the principle of beta radiation attenuation, where a source of beta particles (usually from a radioactive material) emits radiation that passes through an ambient air sample containing particulate matter. As these beta particles encounter particles in the air, they lose energy or are absorbed, leading to a reduction in the intensity of the beta radiation that reaches a detector.
Betting systems are strategies that bettors use to determine how much to wager, how to manage their bankroll, and how to approach their betting activities in various gambling scenarios, such as sports betting, casino games, and other forms of gambling. These systems are designed to help bettors maximize their winnings, minimize their losses, or both, although there's no guaranteed method for success in betting.
Bijective numeration is a way of representing integers in a unique format that avoids the use of zero. In this system, every positive integer is mapped to a unique sequence of symbols, typically using a specific base \( b \), but instead of using the conventional digits \( 0, 1, 2, \ldots, b-1 \), it uses the digits \( 1, 2, \ldots, b \).
"What is Mathematics?" is a phrase that can be interpreted in a few ways depending on the context. It could refer to a philosophical inquiry into the nature of mathematics, a specific educational resource, or a broader exploration of the subject's significance and applications. Here are a few possible interpretations: 1. **Philosophical Inquiry**: This includes questions about the essence of mathematics, its foundations, and what it means to "know" or "do" mathematics.
Bjørn Gjevik is a Norwegian figure known for his work in the field of music, particularly as a pianist and composer. He may also be involved in various artistic or educational endeavors related to music.
Stereochemistry by Ciro Santilli 40 Updated 2025-07-16
Molecules that are the same if you just look at "what atom is linked to what atom", they are only different if you consider the relative spacial positions of atoms.
Video 1.
Yang-Mills 1 by David Metzler (2011)
Source.
A bit disappointing, too high level, with very few nuggests that are not Googleable withing 5 minutes.
Breakdown:
Video 2. Source. 2 hour talk at the Kavli Institute for Theoretical Physics. Too mathematical, 2021 Ciro can't make much out of it.
Video 3.
Lorenzo Sadun on the "Yang-Mills and Mass Gap" Millennium problem
. Source. Unknown year. He almost gets there, he's good. Just needed to be a little bit deeper.
Biological thermodynamics is the study of energy transformations and the principles of thermodynamics as they apply to biological systems. It explores how living organisms convert energy from their environments into forms that can be used for work, growth, and maintenance of life processes, and it helps to understand the energetics of biochemical reactions, cellular processes, and physiological functions.
The list of Chinese mathematicians includes prominent figures throughout history who have made significant contributions to various fields of mathematics. Here are some notable Chinese mathematicians: 1. **Zhang Heng (78–139)** - An astronomer, mathematician, and inventor known for his work on early mathematics and his invention of the seismoscope. 2. **Sunzi (Sun Tzu) (c.
"Black Mathematicians and Their Works" generally refers to the contributions and achievements of Black mathematicians throughout history and their impact on the field of mathematics. It highlights the work of numerous individuals who have made significant strides in various areas of mathematics, ranging from theoretical work to applied mathematics and education.

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