"An Experimental Enquiry Concerning the Source of the Heat which is Excited by Friction" is a significant work by the English scientist Benjamin Thompson, also known as Count Rumford. Published in 1798, the paper presents experimental investigations into the nature of heat generated by friction and challenges the prevailing caloric theory of heat at that time. In his inquiries, Rumford conducted a series of experiments to demonstrate that heat can be generated mechanically.
Bernard H. Lavenda is an American physicist known for his work in theoretical physics, particularly in statistical mechanics and the physics of complex systems. He has contributed to the understanding of various physical phenomena and has authored several papers and books on these topics. Lavenda is also recognized for his efforts in teaching and promoting science, often addressing the philosophical implications of physics. If you have a more specific context or question related to Bernard H. Lavenda, feel free to ask!
Joseph Black (1728-1799) was a Scottish physician and chemist, renowned for his significant contributions to the field of chemistry and thermodynamics. He is best known for his discovery of latent heat, which is the heat energy absorbed or released during a phase change of a substance without changing its temperature. This work laid the groundwork for later developments in thermodynamics. Black also studied the properties of gases and is credited with the identification of carbon dioxide, which he referred to as "fixed air.
Joseph Henry Keenan was an American physicist known for his contributions to the fields of nuclear physics and aerospace engineering. He was particularly recognized for his research on radiation and its applications.
Cryogenic engineering is a specialized field of engineering that deals with the production and application of very low temperatures, typically below -150 degrees Celsius (approximately -238 degrees Fahrenheit or 123 Kelvin). At these temperatures, the properties of materials can change significantly, and many gases become liquids, which can be exploited for various industrial and technological processes. Key aspects of cryogenic engineering include: 1. **Cryogenic Liquefaction**: Processes to convert gases like nitrogen, helium, and hydrogen into liquids.
The Shimansky equation, also known as the Shimansky model, is a mathematical model used to describe certain types of nonlinear dynamics, particularly in the context of physical and biological systems. It originates from studies in the field of nonlinear dynamics and chaos theory, and can be applied to various phenomena, including population dynamics, mechanical systems, and more.
Von Babo's law is a principle in biomechanics that relates to the deformation of biological tissues under mechanical stress. It states that the stress (force per unit area) applied to a material is proportional to the resulting strain (deformation) within the elastic limit of that material. In simpler terms, it describes how tissues, such as cartilage or bone, respond to the forces applied to them.
Cultural depictions of Thomas Edison are varied and extensive, reflecting his status as one of the most influential inventors and entrepreneurs in American history. Here are some common themes and representations across various forms of culture: 1. **Film and Television**: Edison has been portrayed in numerous films and television shows, often depicted as a brilliant and sometimes controversial figure. These portrayals can range from heroic to complex, highlighting both his innovative spirit and his sometimes ruthless business practices.
35 mm movie film refers to a specific film format used in motion pictures and still photography. The designation "35 mm" refers to the width of the film strip, which is 35 millimeters. This format has been one of the most common film sizes used in the film industry since the early 20th century. Here are some key points about 35 mm movie film: 1. **Physical Characteristics**: The film strip comprises a series of frames that capture images.
The Ginzburg criterion, often referenced in the context of superconductivity, provides a condition for determining the stability of a superconducting state. Specifically, it assesses the ability of a superconducting material to maintain its superconducting properties under the influence of external magnetic fields or current. The Ginzburg criterion is associated with the Ginzburg-Landau (GL) theory, which is a theoretical framework used to describe superconductivity.
The order of integration refers to the number of times a function has been integrated. In calculus, the process of integration can be performed multiple times, and each layer of integration adds to the "order." Here’s a brief breakdown of the concept: 1. **First Order Integration**: This is the process of integrating a function once.
Kronecker's theorem, also known as the Kronecker limit formula, is a result in number theory specifically related to the distribution of prime numbers and the behavior of certain algebraic objects. It can be particularly focused on the context of the theory of partitions or modular forms, but the term might refer to different results depending on the field.
"More of Tom Lehrer" is a comedy album by the American singer-songwriter and mathematician Tom Lehrer, released in 1961. It is part of his collection of musical works that often feature satirical songs addressing various social, political, and philosophical themes. This album includes some of Lehrer’s well-known songs, showcasing his clever lyrics and distinctive style that blend humor with sharp wit.
The Three Utilities Problem is a classic problem in graph theory and combinatorial optimization. It involves connecting three houses to three utility services (like water, electricity, and gas) without any of the utility lines crossing each other. In more formal terms, the problem can be visualized as a bipartite graph where one set contains the three houses and the other set contains the three utilities.
The term "Identity component" can refer to different concepts depending on the context in which it is used. Here are a few interpretations across various fields: 1. **Mathematics**: In topology and algebra, the identity component of a topological space is the maximal connected subspace that contains the identity element. For a Lie group or a topological group, the identity component is the set of elements that can be path-connected to the identity element of the group.
A totally disconnected group is a type of topological group in which the only connected subsets are the singletons, meaning that the only connected subsets of the group consist of individual points. This concept can be understood in the context of topological spaces and group theory. In more formal terms, a topological group \( G \) is said to be totally disconnected if for every two distinct points in \( G \), there exists a neighborhood around each point such that these neighborhoods do not intersect.
Satellite tornadoes are smaller tornadoes that develop in the vicinity of a larger parent tornado. They typically form in the outer bands of the parent storm and can rotate around it. These satellite tornadoes can be brief but may still be destructive. They often occur in severe storm systems, particularly supercell thunderstorms, which can produce multiple tornadoes at once.
Tornadoes hold a unique place in various cultures, particularly in regions where they are more frequently experienced, such as the United States, especially in "Tornado Alley." Their cultural significance can be observed in several ways: 1. **Folklore and Mythology**: Tornadoes often feature in local folklore and mythology. They have been depicted as powerful natural phenomena that can carry deep symbolic meanings, such as the representation of destruction, change, or the uncontrollable forces of nature.
G. Sankara Kurup (1901-1978) was an Indian poet, translator, and literary figure, recognized primarily for his contributions to Malayalam literature. He is celebrated for his modern poetic style and his ability to blend traditional and contemporary themes. Kurup was influenced by various literary movements and often explored topics related to nature, human emotions, and social issues in his work.
"Ultimate Tornado" isn't a widely recognized term as of my last knowledge update in October 2021; it might refer to a product, game, event, or other concepts related to tornadoes or severe weather. It could also be a title of media, like a movie or video game, that features themes surrounding tornadoes.

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