Creosote is a thick, oily substance that is produced through the distillation of tar or wood. It can come from two main sources: 1. **Coal Tar Creosote**: This type is derived from the carbonization of coal and is commonly used as a preservative for wood, particularly in railroad ties and utility poles. Coal tar creosote contains a complex mixture of phenolic compounds and hydrocarbons, which provide its preservative properties, preventing decay and insect damage.
"Electric sonic amplitude" does not appear to refer to a widely recognized term in science or engineering as of my last knowledge update in October 2021. However, it seems to combine concepts from both "electric" and "sonic" fields: 1. **Electric**: This typically relates to electricity or electrical phenomena, such as voltage, current, and electromagnetic fields. 2. **Sonic**: This generally pertains to sound waves and their properties, including frequency, amplitude, and speed.
The *Journal of Chemical Information and Modeling* is a scholarly journal that publishes research related to the application of computational methods in chemical and biochemical contexts. This includes areas such as cheminformatics, molecular modeling, and the use of computational techniques to predict the behavior and properties of chemical compounds.
Chess is a strategic board game played between two players. The rules of chess outline how the game is played, how pieces move, and how games are won or drawn. Here are the fundamental rules of chess: ### The Chessboard - The game is played on an 8x8 square board, alternating light and dark squares. - Each player begins with 16 pieces: one king, one queen, two rooks, two knights, two bishops, and eight pawns.
Chinese astrophysicists are scientists from China who study astrophysics, the branch of astronomy that deals with the physical properties and interactions of celestial objects and phenomena. Their work encompasses a wide range of topics, including the formation and evolution of stars and galaxies, cosmology (the study of the universe's origin and development), dark matter and dark energy, black holes, and the physics of high-energy environments in space.
pH indicators are substances that change color or exhibit different properties in response to changes in pH, which is a measure of the acidity or alkalinity of a solution. They are commonly used in various applications, such as titrations in chemistry, soil testing in agriculture, and monitoring of pH in swimming pools and aquaculture.
The closed-loop transfer function is a mathematical representation of the relationship between the output and input of a control system when feedback is applied. It describes how the system behaves when a portion of the output is fed back into the system input to regulate the behavior of the output. In the context of control systems, the closed-loop transfer function can be defined as follows: 1. **Open-Loop Transfer Function**: It is the transfer function of the system when no feedback is applied.
Integral windup is a phenomenon that occurs in control systems, particularly in controllers employing integral action, such as PID (Proportional-Integral-Derivative) controllers. It refers to the situation where the integral component of the controller accumulates a significant error during periods when the control output is saturated or unable to respond effectively to the input.
Godai, or the "Five Great Elements," is a concept in Japanese philosophy and spirituality that originated from ancient Asian thought, particularly influenced by Buddhism and various Eastern practices. The term "Godai" is composed of two Japanese words: "go" (five) and "dai" (great, large, or important). The five elements in Godai are: 1. **Chi (Earth)** - Represents solidity, stability, and the physical aspects of life.
"Moondial" is a children's fantasy novel written by Sarah Baker, first published in 1987. The story revolves around a young girl named Mary who, after the death of her mother, moves into a new home with her aunt. The house has a mysterious garden with a Moondial, a device that tracks the phases of the moon.
Flavor Flav is an American rapper and television personality, best known as a member of the hip-hop group Public Enemy, which was formed in the late 1980s. He is recognized for his distinctive public persona, characterized by his flamboyant style, including his oversized clock necklace, and his energetic performances. Flavor Flav contributed to the group's influential sound and socially conscious lyrics, which addressed various issues, including race and politics.
A talking clock is a device that announces the time audibly, typically using a synthesized voice. These clocks can serve various purposes, including helping individuals who are visually impaired to tell the time, as well as providing a convenient way for anyone to check the time without needing to look at a traditional clock or watch. Talking clocks can come in various forms, such as standalone devices, alarm clocks, or even apps on smartphones.
The Stoppomat is a self-service bike rental system designed to facilitate easy access to bicycles for users, typically in urban areas or popular tourist destinations. It allows individuals to rent bikes for short periods, promoting cycling as a convenient and sustainable mode of transportation. Users can generally access bikes using a mobile app or a smart card, and they can return the bikes at designated rental stations or Stoppomat locations, often equipped with automated docking systems.
A peninsula is a landform that is surrounded by water on three sides but is connected to the mainland on one side. This geographical feature can vary in size, shape, and topography. Some well-known examples of peninsulas include: 1. **Iberian Peninsula** - Home to Spain and Portugal. 2. **Italian Peninsula** - The boot-shaped peninsula that includes Italy. 3. **Florida Peninsula** - A large peninsula in the southeastern United States.
"Seas" can refer to a few different concepts depending on the context: 1. **Geographical Term**: In a geographical context, "seas" are large bodies of saltwater, typically smaller than oceans and partially enclosed by land. Examples include the Mediterranean Sea, the Red Sea, and the Caribbean Sea.
In geographical terms, a "sound" is a large sea or ocean inlet. It can also refer to a narrow sea or ocean channel between two landmasses. Sounds are typically larger than fjords and are often less sheltered than bays. They are formed through various geological processes, including erosion and glacial activity. Sounds can also serve important ecological and economic functions, acting as habitats for marine life and providing navigation routes for shipping and fishing.
Cowaramup Bombora, often referred to simply as "Cowaramup," is a well-known surf break located near the town of Cowaramup in Western Australia. It is situated along the southwestern coast, within the popular Margaret River region, which is renowned for its surf culture and stunning natural landscapes. The term "bombora" refers to a submerged reef or sandbank that creates waves, making it a popular spot for surfers.
"Tegnue" refers to underwater structures or aggregates that create habitats for marine life, often formed by natural processes such as the accumulation of stones, corals, or other materials. The term is particularly known in the context of the Adriatic Sea, where "tegnue" can describe rocky areas that serve as important ecosystems for various fish and invertebrate species. These structures provide shelter, breeding grounds, and feeding areas, contributing to biodiversity in marine environments.
An undersea mountain range, or mid-ocean ridge, refers to a series of underwater mountains formed by tectonic plate movements and volcanic activity along divergent plate boundaries. These ranges are typically characterized by a continuous ridge of underwater volcanoes and are often shaped by the process of seafloor spreading, where magma rises from the mantle to create new oceanic crust.

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