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.
Herbert Callen was an American physicist, best known for his contributions to thermodynamics and statistical mechanics. He was a professor at Columbia University and co-authored a widely used textbook titled "Thermodynamics" with Edward M. Ott. This textbook has been influential in the teaching and understanding of thermodynamic principles. Callen's work laid important groundwork in the field, particularly in the formulation of the laws of thermodynamics and their applications to various physical systems.
Lazare Carnot (1753–1823) was a French physicist and military engineer, often referred to as one of the founders of thermodynamics. He is particularly known for his work on the principles of energy conservation and the idea of heat engines. His most significant contribution to science is the formulation of what is now known as the "Carnot cycle," which is a theoretical model that defines the maximum efficiency of a heat engine operating between two temperature reservoirs.
Théophile de Donder (1872–1957) was a Belgian physicist and chemist known for his contributions to thermodynamics and physical chemistry. He is particularly recognized for his work on chemical thermodynamics and the formulation of the Gibbs-Donder equations, which describe the relationship between thermodynamic properties and chemical reactions. De Donder also made significant advancements in the development of the concept of affinity and the mathematical treatment of reaction kinetics.
Walther Nernst (1864–1941) was a prominent German physical chemist known for his significant contributions to various areas of chemistry, including thermodynamics, electrochemistry, and chemical kinetics. He is best known for the formulation of the Nernst Equation, which describes the relationship between the concentration of ions in solution and the electrical potential of an electrochemical cell. This equation is crucial for understanding how batteries and galvanic cells operate.
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.
A cryometer is an instrument used to measure very low temperatures, typically in the cryogenic range, which is generally considered to be below -150 degrees Celsius (-238 degrees Fahrenheit). Cryometers can be used in various scientific and industrial applications, including material testing, fundamental physics research, or in the cooling processes of technologies such as superconductors. Different types of cryometers operate on various principles.
Thermal science is the study of heat, energy transfer, and thermodynamic processes. It encompasses various disciplines that focus on the behavior of energy in relation to temperature, matter, and the laws governing these interactions. The main components of thermal science include: 1. **Thermodynamics**: This branch studies the principles governing heat transfer and work done by or on systems. It includes concepts like the laws of thermodynamics, various thermodynamic cycles, and states of matter.
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.
Thin-film optics is the study of light behavior as it interacts with thin layers of materials, typically ranging from a few nanometers to several micrometers in thickness. These thin films can cause various optical phenomena due to the interference of light waves reflected and transmitted at the boundaries of the film. ### Key Concepts in Thin-Film Optics: 1. **Interference**: When light waves reflect off the upper and lower boundaries of a thin film, they can interfere with one another.
"Mesotherm" typically refers to a type of climate characterized by moderate temperatures. In the context of climate classification, it is often associated with regions that experience warm summers and mild winters, with a certain range of temperature variations. Mesothermal climates are generally found in the temperate zones, including various parts of the United States, Europe, and parts of Asia.
The average human body temperature is typically around 98.6 degrees Fahrenheit (37 degrees Celsius). However, it's important to note that normal body temperature can vary from person to person and can be influenced by various factors, including the time of day, age, activity level, and method of measurement. Generally, normal body temperature can range from about 97°F (36.1°C) to 100.4°F (38°C).
"Tachyaerobic" is not a widely recognized term in biology or any related fields as of my last knowledge update in October 2023. However, it seems like it could be a combination of "tachy," meaning fast or rapid, and "aerobic," which refers to processes that require oxygen.
The theta function of a lattice is a special type of mathematical function that arises in the context of complex analysis, number theory, and mathematical physics. Specifically, it is related to the theory of elliptic functions, modular forms, and can be used in various applications including statistical mechanics and string theory. A lattice in this context is typically defined as a discrete subgroup of the complex plane generated by two linearly independent complex numbers \( \omega_1 \) and \( \omega_2 \).
Edison's Black Maria, also known as the Black Maria studio, was the first movie studio in the United States, created by inventor Thomas Edison in 1893. Located in West Orange, New Jersey, the studio was a small, tar-paper-covered building that was designed to be a versatile, movable structure. Its unique design included a rotating roof, allowing natural light to enter at various angles—ideal for filming.
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.
Alfred Clark was an American filmmaker and director active in the early 20th century, particularly known for his work in the silent film era. He was involved in the production of several short films, often associated with the Biograph Company, where he directed a number of influential and innovative works. One of his notable contributions to cinema was the development of special effects and innovative techniques in storytelling.
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
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. - Infinitely deep tables of contents:
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





