Thomas Andrews (1813-1885) was an Irish scientist known primarily for his contributions to thermodynamics and physical chemistry. He is best remembered for his work on the critical point and the behavior of gases and liquids. One of his most significant achievements was the formulation of the concept of the "critical state" of substances, which describes the conditions at which the distinctions between gas and liquid phases disappear.
Hussain al-Shahristani is an Iraqi politician and a prominent figure in Iraq's energy sector. He served as Iraq's Minister of Oil from 2006 to 2010 and has played a significant role in shaping Iraq's oil policies and strategies during and after the U.S.-led invasion of Iraq in 2003.
Frederick Thomas Trouton was a notable figure in the field of science, particularly known for his work in physics and engineering in the late 19th and early 20th centuries. He is best remembered for the "Trouton experiment," which was an important test related to the theory of electric fields and the ether. The Trouton experiment aimed to measure the drag on charged conductors moving through the ether, which was a hypothesized medium for the propagation of electromagnetic waves.
Irish women mathematicians have made significant contributions to the field of mathematics, though historically, they have often been underrepresented. Over the years, several notable Irish women mathematicians have emerged, contributing to various areas of mathematics, including pure mathematics, applied mathematics, statistics, and related fields. Some prominent Irish women mathematicians include: 1. **Mary Cartwright**: An influential mathematician known for her work in non-linear differential equations and chaos theory.
"Irish astrophysicists" refers to scientists from Ireland or those of Irish descent who are engaged in the field of astrophysics, the branch of astronomy that deals with the physical properties and behavior of celestial bodies and the universe as a whole. These scientists may work in various areas, such as cosmology, stellar dynamics, planetary science, and the study of galaxies and the universe's structure.
Eoin O'Reilly could refer to various individuals, as it is a common name. Without specific context, it’s difficult to determine exactly who you might be asking about. In general, Eoin O'Reilly could be a person known in fields such as sports, academia, business, or entertainment.
James B. Kavanagh is an author known for his work in creating educational materials, particularly field guides and pocket guides for nature enthusiasts. He has written extensively on various subjects, including birds, plants, and wildlife, often focusing on American flora and fauna. His guides are popular among hikers, bird watchers, and educators for their concise and informative content, as well as their user-friendly formats.
John Tyndall was a 19th-century Irish physicist and natural philosopher, born on August 2, 1820, and passing away on December 4, 1893. He is best known for his work in areas such as atmospheric physics, thermodynamics, and the study of gases.
The Copeland–Erdős constant is a real number that is constructed by concatenating the prime numbers in sequence. It is named after mathematicians Arthur Copeland and Paul Erdős. The constant is expressed as follows: \[ C = 0.
The Erdős–Borwein constant, often denoted as \( C_{E,B} \), is a mathematical constant that arises in the context of number theory, particularly in relation to certain infinite series and products.
Positive liberty is a concept in political philosophy that refers to the idea of being truly free in the sense of being able to pursue one's own potential and goals. It contrasts with negative liberty, which is defined as freedom from interference by others, particularly the state. Positive liberty emphasizes the importance of enabling individuals to achieve their own purposes and fulfill their potential. It is concerned with the conditions necessary for individuals to truly exercise their freedom, which may include access to education, resources, opportunities, and social support.
"Israel and the Bomb" is likely referring to the topic of Israel's nuclear weapons program and its implications for regional and global security. While Israel has never officially confirmed its nuclear arsenal, it is widely believed to possess nuclear weapons. This subject has been a point of significant international discussion, controversy, and concern.
ISO 31-6 is part of the ISO 31 series, which is a standard that provides rules and guidelines for the use of symbols and units of measurement in various fields, particularly in science and technology. Specifically, ISO 31-6 focuses on "Units of Quantity and Their Symbols." This part of the ISO standard deals with the particular units and symbols used to represent physical quantities.
ISO 31-8 is a part of the ISO 31 series of standards which deals with physical quantities and units. Specifically, ISO 31-8 pertains to the field of "Electromagnetism." This standard defines the terms and symbols used to express various electromagnetic quantities and outlines the units for measuring them. The ISO 31 series was developed to provide a coherent and standardized approach to scientific and technical documentation, ensuring consistency in the use of measurement units across different disciplines.
"Calutron Girls" is a graphic novel by author and artist Anu Anand, released in 2023. It tells the story of a group of women who worked at the California Institute of Technology's (Caltech) Calutron facility during World War II. These women, often referred to as "Calutron girls," played a crucial role in the development of the atomic bomb by operating the calutrons, devices used to separate isotopes of uranium and other elements.
Enriched uranium refers to uranium in which the percentage of the isotope uranium-235 (U-235) has been increased compared to natural uranium. Natural uranium consists primarily of about 99.3% uranium-238 (U-238) and only about 0.7% U-235. Enrichment processes increase the proportion of U-235 to levels suitable for various applications, particularly nuclear power generation and weapons.
The Girdler sulfide process is a method used for the extraction of uranium from its ores, primarily applied in the context of uranium recovery from phosphate rock and other sources. Named after the researcher who developed it, the process selectively extracts uranium by using a combination of sulfur dioxide and hydrogen sulfide in a series of chemical reactions.

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