Georges Vendryes (1885–1960) was a French linguist and philologist known for his work on historical linguistics and the study of language evolution and phonetics. He made significant contributions to the understanding of the relationships between languages and the development of linguistic theory. His research encompassed various languages, including the Romance languages. He is particularly noted for his work on phonology and the concept of linguistic changes over time.
George Cowan could refer to various individuals, but one notable person by that name was a prominent scientist and expert in the field of chemistry and nuclear energy. He was particularly well-known for his work related to the Manhattan Project during World War II and later became a respected figure in the field of nuclear science.
Fritz Strassmann was a German physicist who is best known for his work in nuclear chemistry and for his role in the discovery of nuclear fission. He was born on February 22, 1902, and passed away on April 22, 1980.
The Enrico Fermi Award is a prestigious award presented by the U.S. Department of Energy (DOE) in honor of the Italian-American physicist Enrico Fermi. Established in 1956, the award recognizes individuals for their outstanding contributions to the field of nuclear science and related disciplines, particularly those that have advanced the understanding and application of nuclear energy.
Darleane C. Hoffman is an American nuclear chemist renowned for her significant contributions to the fields of nuclear chemistry and radiochemistry. She is best known for her work on the discovery of heavy elements, particularly her role in the identification of elements such as seaborgium and darmstadtium. Hoffman's research has advanced the understanding of superheavy elements and their properties. She has been a prominent figure in scientific research and education, holding positions in various institutions, including the Lawrence Berkeley National Laboratory.
Alvin M. Weinberg (1915–2006) was an influential American nuclear physicist and a key figure in the development of nuclear energy in the United States. He is best known for his role as the director of the Oak Ridge National Laboratory (ORNL) from 1955 to 1973, where he contributed to various aspects of nuclear research and technology, including the development of nuclear reactors.
The timeline of Iran's nuclear program is complex and spans several decades, involving various developments in technology, international diplomacy, and geopolitical tensions. Here’s a summarized timeline of key events in the Iranian nuclear program: ### 1950s-1970s: Early Development - **1957**: The U.S. and Iran establish the Atoms for Peace program, facilitating the development of nuclear technology in Iran.
Here's a brief timeline of key developments in sustainable energy research from 2020 to the present: ### 2020 - **COVID-19 Impact on Energy**: The pandemic caused a significant drop in energy demand, influencing research on energy systems' resilience and the integration of renewable sources. - **Renewable Energy Growth**: Reports indicated that renewable energy sources surpassed fossil fuels in new power installations globally, with significant advancements in solar and wind technologies.
The timeline of solar cells reflects the evolution of solar technology from the discovery of the photovoltaic effect to the modern advancements in solar energy systems. Here is a concise timeline of significant milestones in the development of solar cells: ### 19th Century - **1839**: French physicist Alexandre Edmond Becquerel discovers the photovoltaic effect, where certain materials produce small amounts of electric current when exposed to sunlight.
The timeline of hydrogen technologies spans several centuries, reflecting the evolution of hydrogen production, storage, and applications. Here's an overview highlighting key milestones: ### 18th Century - **1766**: Henry Cavendish discovers hydrogen, calling it "inflammable air." He identifies hydrogen as a distinct substance. ### 19th Century - **1839**: Sir William Grove develops the first fuel cell, the "Grove cell," which converts hydrogen and oxygen into electricity.
Klein's Encyclopedia of Mathematical Sciences, often referred to simply as Klein's Encyclopedia, is a comprehensive reference work in the field of mathematics and its applications. It was edited by Felix Klein, a prominent mathematician from the late 19th and early 20th centuries, and was first published in 1908. The encyclopedia is known for its extensive coverage of various branches of mathematics, including algebra, geometry, analysis, and applied mathematics.
The "International Encyclopedia of Statistical Science" is a comprehensive reference work that encompasses a wide range of topics within the field of statistics. It serves as a valuable resource for statisticians, researchers, and students by providing detailed entries on various statistical concepts, methods, theories, and applications.
The "Encyclopedic Dictionary of Mathematics" is a comprehensive reference work that provides definitions and explanations of a wide range of mathematical concepts, terminology, and notations. It is designed to serve as a resource for students, educators, and professionals in the field of mathematics. The dictionary includes entries on various topics such as algebra, calculus, geometry, topology, number theory, and statistics, among others. It typically features detailed explanations, historical context, and relevant examples to aid in understanding complex mathematical ideas.
The "Encyclopedia of the History of Arabic Science" is a comprehensive reference work that explores the contributions of Arabic-speaking scholars to the development of science throughout history. This encyclopedia typically covers a wide range of scientific fields, including mathematics, astronomy, medicine, philosophy, and more, highlighting the significant advancements that occurred during the Islamic Golden Age (roughly from the 8th to the 14th centuries).
The "Encyclopedia of Statistical Sciences" is a comprehensive reference work that covers a wide range of topics in the field of statistics. It is designed to provide detailed information about statistical theories, methodologies, applications, and important concepts. The encyclopedia is a valuable resource for researchers, practitioners, and students in statistics, as it consolidates expertise from various contributors in the field.
The "Encyclopedia of Mathematics" is a comprehensive reference work edited by James Tanton, who is known for his contributions to mathematics education and outreach. This encyclopedia aims to cover a wide range of mathematical topics, concepts, and theories, making it accessible to students, educators, and anyone interested in mathematics. James Tanton, a mathematician and educator, has been involved in various initiatives to promote mathematics and enhance its teaching and learning.
The "Encyclopedia of Mathematics" is a comprehensive reference work that covers a wide range of mathematical topics. It provides detailed entries on various concepts, theorems, definitions, and applications within mathematics. The encyclopedia is designed to be an important resource for mathematicians, educators, students, and anyone interested in the field of mathematics.
The "Concise Encyclopedia of Supersymmetry and Noncommutative Structures in Mathematics and Physics" is a reference work that compiles a wide range of topics related to supersymmetry, noncommutative geometry, and their applications in both mathematics and theoretical physics. Supersymmetry is a theoretical framework that proposes a relationship between bosons (force-carrying particles) and fermions (matter particles), leading to significant implications in particle physics and cosmology.

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