The Hindu-Arabic numeral system, the most widely used numeral system today, has a rich history that spans several cultures and centuries. Here’s a brief overview of its development: ### 1. Origins in India - **Indian Numerals (circa 6th century CE)**: The numeral system originated in India, where it was developed by Indian mathematicians.
The history of the jet engine is a fascinating tale of innovation and technological development that has transformed aviation and powered a range of military and civilian aircraft. Here’s an overview of key milestones in the history of jet propulsion: ### Early Concepts - **Ancient Times**: The principles of jet propulsion can be traced back to ancient China, where devices like the "hot air balloon" were developed, and the use of steam and gunpowder laid the groundwork for later technologies.
Hitoshi Motoshima is a Japanese politician, known for serving as the mayor of Nagasaki. He gained notoriety for his outspoken views on nuclear weapons and peace, particularly in relation to the atomic bombings of Hiroshima and Nagasaki during World War II. As mayor, he emphasized the importance of nuclear disarmament and the promotion of peace, often representing Nagasaki's historical significance as a city affected by such tragedies.
The H. Milton Stewart School of Industrial and Systems Engineering (ISyE) is a department within the Georgia Institute of Technology (Georgia Tech), located in Atlanta, Georgia. It is known for its strong emphasis on the discipline of industrial engineering, which focuses on the optimization of complex processes, systems, or organizations. The school is named after H. Milton Stewart, a notable alumnus and benefactor who made significant contributions to the field.
As of my last update in October 2023, Hofstra Pride men's basketball statistical leaders would include the program's top performers in various categories such as points, rebounds, assists, steals, and blocks, usually over the course of the program's history or a specific season. For the most accurate and up-to-date statistics, including current players and records, it's best to check Hofstra University's official athletics website or their men's basketball program page.
"Homoeoid" is not a widely recognized term in common scientific or academic literature. It may be a misspelling or a less common term, possibly referring to a specific concept in biology, chemistry, or another field.
Holger Bech Nielsen is a Danish theoretical physicist known for his work in particle physics, particularly in the fields of string theory and quantum gravity. He has made significant contributions to the understanding of various aspects of theoretical physics, including the implications of string theory for fundamental forces and the unification of different physical theories. Nielsen is also known for proposing the "Nielsen processes," which lead to advanced research into topics like the nature of black holes and the structure of space-time.
SplitsTree is a software tool used for the analysis and visualization of phylogenetic relationships and evolutionary processes. It is particularly known for its ability to construct and analyze various types of phylogenetic networks, which can represent complex evolutionary scenarios, including horizontal gene transfer, hybridization, and other non-tree-like evolutionary events.
"Hollies Sing Dylan" is an album by the British pop band The Hollies, released in 1969. The album features a collection of songs written by American singer-songwriter Bob Dylan, showcasing The Hollies' unique take on his work.
Philotimo is a Greek term that embodies a complex set of values and characteristics, often translated as "love of honor" or "love of one's fellow man." It signifies a sense of duty, integrity, and respect, reflecting a person's commitment to moral principles, selflessness, and community. Philotimo encompasses qualities such as generosity, hospitality, and a deep sense of responsibility towards others.
Holmström's theorem, named after the economist Bengt Holmström, is a result in the field of contract theory. It revolves around the design of contracts in situations where there is asymmetric information, specifically regarding effort or actions taken by agents that cannot be perfectly observed by the principal. The key insights from Holmström's theorem are: 1. **Incentive Compatibility**: The theorem underscores the importance of designing contracts that provide the right incentives for agents (e.g.
A homothetic vector field is a type of vector field in differential geometry and the study of Riemannian manifolds that encodes self-similarity characteristics of the manifold. More precisely, a vector field \( V \) on a Riemannian manifold \( (M, g) \) is said to be homothetic if it generates homotheties of the metric \( g \).
The Honorary Fellows of the Institute of Physics (IoP) is an esteemed recognition awarded by the Institute to individuals who have made substantial contributions to the field of physics or have provided exceptional service to the Institute itself. This status is typically granted to those who have shown outstanding achievements in research, education, or professional practice within the discipline.
Hooke's Law states that the force \( F \) exerted by a spring is directly proportional to the displacement \( x \) from its equilibrium position, provided that the elastic limit is not exceeded.
The Hopf fibration is a mathematical construction that represents a particular way of decomposing certain spheres into circles. Named after Heinz Hopf, who introduced the concept in 1931, it provides a fascinating connection between topology, geometry, and algebra. Specifically, the Hopf fibration describes a fibration of the 3-sphere \( S^3 \) over the 2-sphere \( S^2 \) with the fibers being circles \( S^1 \).
Horizontal resistance refers to a level in a financial asset's price chart where the price tends to stop rising and may reverse direction. This is often seen as a price level where a significant number of sellers enter the market, causing the price to struggle to move above that level. In technical analysis, horizontal resistance is represented visually by a horizontal line drawn across the peaks in a price chart, indicating areas where the price has historically struggled to break through.
Horng-Tzer Yau is a prominent mathematician known for his contributions to various fields, including mathematical physics, applied mathematics, and partial differential equations. He is particularly recognized for his work on quantum mechanics, statistical mechanics, and the mathematical foundations of these areas. Yau has published numerous research papers and has made significant impacts on the understanding of the mathematical structures underlying physical theories.
The House Allocation Problem is a classic problem in economics and game theory that deals with the distribution of a fixed number of houses (or resources) among a group of individuals (or agents) based on their preferences. Each individual typically has their own rankings of the available houses, and the objective is to allocate the houses in a way that is fair and efficient.

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 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