Dawon Kahng, also known as Dawon Kahng, is a name that is primarily associated with a notable figure in the field of computer science and electrical engineering. He is often credited for his work on quantum computing and is known for his research contributions in the theory of quantum information processing.
Ananias Davisson was a significant figure in American music history, known primarily as a composer and music publisher in the early 19th century. He was born in 1780 and is perhaps best known for his role in promoting and disseminating shape note singing, a simple and accessible system of musical notation designed to make music more approachable for amateur singers, particularly in rural communities.
May's Theorem is a result in social choice theory, particularly regarding voting systems and preferences. It addresses the behavior of the majority rule method in elections with more than two candidates. Specifically, May's Theorem states that in a majority rule voting system, the only function that satisfies certain axioms (unanimity, independence of irrelevant alternatives, and non-dictatorship) is the simple majority rule.
Thomas Commuck (c. 1810–1856) was a notable figure in American history, recognized as one of the first known Native American composers and musicians. He belonged to the Narragansett tribe in Rhode Island and is primarily remembered for his contributions to music during the 19th century. Commuck composed several works that reflected his cultural heritage and experiences as a Native American in a rapidly changing society. His pieces often incorporated themes relevant to Indigenous life and perspectives.
Implicit utilitarian voting is a voting mechanism that aims to maximize overall social welfare or utility, based on the preferences of the voters. While traditional voting systems typically focus on explicit votes for specific candidates or policies, implicit utilitarian voting allows voters to express their preferences in a way that reflects the utility or satisfaction they derive from different options. In this system, voters may indicate not just their preferred choice but also the strength of their preference, often through a ranking or a scoring system.
The Bombieri–Vinogradov theorem is a significant result in analytic number theory, particularly in the study of prime numbers. It provides a statistical estimate for the distribution of prime numbers in arithmetic progressions. More specifically, the theorem states that, under certain conditions, the primes are uniformly distributed among the residues of a given modulus.
The angle of repose is the steepest angle of descent or dip relative to the horizontal plane at which a material, such as gravel, sand, or soil, can rest without sliding. It is a measure of the stability of a pile of granular materials and is influenced by factors such as the shape, size, and moisture content of the particles.
Horton overland flow refers to a type of surface runoff that occurs when rainfall intensity exceeds the soil's infiltration capacity, leading to water flowing over the land surface. The concept was introduced by the hydrologist Robert E. Horton in the early 20th century. This process is characterized by several key features: 1. **Infiltration Capacity**: Each soil type has a specific ability to absorb water, known as infiltration capacity.
Frost heaving is a geological phenomenon that occurs when the ground surface is pushed upward due to the freezing and expansion of water in the soil. This process typically takes place in regions with seasonal freeze-thaw cycles. Here’s how it works: 1. **Soil Moisture**: Soil contains moisture, which can be derived from rain, snowmelt, or underground water sources. 2. **Freezing**: When temperatures drop, the water in the soil starts to freeze.
The Marchetti dilatometer test is a geotechnical investigation method used primarily to assess the in-situ stress-strain characteristics and the deformation properties of soil, especially cohesive soils such as clay. The test is particularly valuable for understanding the behavior of soil under various loading conditions, which is crucial for foundation design, slope stability analysis, and other geotechnical applications.
Pore water pressure is the pressure exerted by water within the pores of a soil or rock formation. It is a critical concept in geotechnical engineering and hydrogeology, as it influences the effective stress, stability, and strength of soil and rock structures. The concept of pore water pressure can be understood in the context of the effective stress principle, which states that the effective stress in a soil is equal to the total stress minus the pore water pressure.
The permanent wilting point (PWP) is a crucial concept in soil science and agronomy, referring to the soil moisture level at which plants can no longer extract water from the soil and begin to wilt irreversibly. At this point, the water is held in the soil too tightly for plant roots to absorb, leading to physiological stress and eventual death if water is not made available.
Magnetosphere chronology refers to the study and timeline of the Earth's magnetosphere—its formation, evolution, and changes over time. The magnetosphere is the region of space around Earth where the planet's magnetic field influences the motion of charged particles, such as solar wind. It plays a critical role in protecting the Earth from harmful solar and cosmic radiation.
Magnetosphere particle motion refers to the behavior and dynamics of charged particles, such as electrons and ions, within the Earth's magnetosphere. The magnetosphere is the region of space surrounding the Earth where the magnetic field dominates and is influenced by the solar wind, which is a stream of charged particles emitted by the Sun. Key aspects of magnetosphere particle motion include: 1. **Magnetic Fields**: The Earth's magnetic field creates forces that guide the motion of charged particles.
"Blue Frog" could refer to a variety of things depending on the context. It may refer to: 1. **Animals**: The blue poison dart frog (Dendrobates tinctorius "azureus") is a species known for its striking blue coloration and toxicity, found in the rainforests of Suriname. 2. **Business**: Blue Frog could be the name of a company, brand, or product in various industries.
Boxbe is a service that was designed to help users manage their email more effectively by filtering and prioritizing incoming messages. It allowed users to create a list of approved senders, ensuring that only emails from those senders would reach their inbox, while others would be diverted to a separate folder. This aimed to reduce spam and unwanted emails, making it easier for users to focus on important communications.
In the context of systems like inheritance in programming, particularly object-oriented programming (OOP), "hereditary property" usually refers to the ability of classes to inherit properties and behaviors (i.e., methods) from other classes. This concept is a cornerstone of OOP and allows for code reuse and the creation of hierarchical relationships between classes. In this context: 1. **Superclass (or Parent Class)**: This is the class whose properties and methods are inherited by another class.
The Löwenheim–Skolem theorem is a fundamental result in model theory, a branch of mathematical logic. It describes the relationship between first-order logic, models, and cardinalities (sizes) of structures. There are two versions of the theorem: the downward Löwenheim–Skolem theorem and the upward Löwenheim–Skolem theorem.
Computation oracles are theoretical constructs used primarily in computer science, particularly in the fields of complexity theory and cryptography. An oracle is essentially a black box that can answer certain questions or perform specific computations instantaneously, regardless of their complexity. This allows theoreticians to explore the limits of computation and understand how certain problems relate to others.

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