"Chemoton" is a theoretical concept proposed by Hungarian biologist and chemist György Gábor in the 1970s. It refers to a model of primitive life forms and is intended to describe a self-replicating system composed of three essential components: 1. **Genetic Information**: Similar to RNA or DNA, this component serves as the template for replication.
Catallaxy is a term that originates from the Greek word "catallaktikos," which means "exchange" or "to exchange goods." It is often used in economic contexts to describe the system of voluntary exchanges that facilitate trade and economic interactions among individuals within a market. The concept emphasizes the role of human action and cooperation in creating wealth and fostering innovation. In contemporary discussions, the term is sometimes associated with the work of economists and thinkers, such as F.A.
Catallactics is a branch of economics that studies the processes of exchange and the formation of prices in markets. The term is derived from the Greek word "catallaxis," which means "exchange" or "the act of exchanging." It is primarily concerned with how goods and services are exchanged in a market economy and how various factors influence supply and demand, price formation, and market behavior.
Breath-figure self-assembly is a process used in materials science and nanotechnology to create micro- or nanoscale patterns on surfaces. This method relies on the condensation of water vapor from the air onto a substrate that contains a polymer or another type of material. The key steps in the process typically involve the following: 1. **Evaporation**: A solution containing a polymer or colloidal particles is applied to a substrate, and the solvent begins to evaporate.
In biology, the term "bow tie" can refer to a specific shape or structure observed in certain biological molecules or systems, although it does not have a widely recognized definition as a standalone concept in the field. In some contexts, "bow tie" may be used informally to describe the shape of certain proteins or complexes, or it may refer to the arrangement of biological pathways that resemble a bow tie shape in diagrams.
Superorganisms are complex entities formed by the close association of individual organisms that work together as a single functional unit. This concept is often applied to certain social insects, such as ants, bees, termites, and wasps, where the collective behaviors of these organisms create a highly organized and efficient society.
Pattern formation refers to the process by which ordered structures emerge in various natural systems. This phenomenon can be observed in a range of fields, including biology, physics, chemistry, and mathematics. The concept encompasses the mechanisms and principles that lead to the development of organized patterns from initially random states. In biological systems, pattern formation is prevalent in processes such as the development of animal coats (like spots or stripes), the arrangement of cells in tissues, and the morphogenesis of organisms.
The Valeriano Fault System is a geological feature located in the region of central Chile. It is part of the complex system of faults and tectonic structures associated with the ongoing subduction of the Nazca Plate beneath the South American Plate. This fault system is characterized by a series of active faults that can generate earthquakes, and it plays a significant role in the tectonics of the area.
A travel-time curve is a graphical representation used primarily in the fields of seismology and geophysics to depict the relationship between the time it takes for seismic waves to travel from a source (such as an earthquake) to a detector (such as a seismometer) as a function of distance.
Tidal triggering of earthquakes refers to the phenomenon where the gravitational pull of the Moon and the Sun influences the occurrence of seismic events, particularly small to moderate earthquakes. The idea is based on the understanding that the varying gravitational forces exerted by celestial bodies can alter stress levels along fault lines in the Earth's crust. The process works as follows: 1. **Gravitational Effects**: The gravitational pull from the Moon and the Sun creates tidal forces that can slightly deform the Earth's crust.
Teleseism refers to seismic waves generated by distant earthquakes that are detected by seismographs located far from the source of the seismic activity. The term typically applies to seismic waves that travel thousands of kilometers before being recorded, allowing seismologists to study events that occur far from the monitoring station. Teleseismic data is valuable for understanding the Earth's structure, studying the properties of seismic waves, and conducting research into the mechanisms of earthquakes.
The Sukku Fault is a geological fault located in the region of South Asia, particularly in the Indian subcontinent. It is part of the larger system of faults associated with the tectonic interactions between the Indian and Eurasian plates. The region has a complex geological structure shaped by the ongoing tectonic movements. The Sukku Fault is significant in terms of its potential to generate seismic activity.
Subterranean rumbling refers to sounds or vibrations that occur beneath the Earth's surface. These phenomena can arise from various natural processes, including: 1. **Geological Activity**: Movements of tectonic plates, volcanic activity, or earthquakes can cause rumbling sounds as the Earth's crust shifts. 2. **Hydrothermal Activity**: The movement of hot water and steam in geothermal areas can create rumbling noises.
Stacking velocity, commonly used in geophysics and seismic data processing, refers to the velocity of seismic waves as they are stacked or combined to produce a clearer image of the subsurface layers of the Earth. When multiple seismic records (or traces) are collected from various points on the surface, they can be aligned and summed together. This process helps to enhance signal quality and minimize noise.
Spectral acceleration (SA) is a measure used in seismology and engineering to describe the response of structures to earthquake ground motion. It provides insight into how buildings and other structures might behave during seismic events. The concept is part of a broader framework known as "response spectra," which represents the maximum responses of a series of oscillators (often assumed as single-degree-of-freedom systems) subjected to a particular ground motion.
The Southern Great Lakes Seismic Zone (SGLSZ) is a region in the northern United States, particularly around the Great Lakes, known for its seismic activity. This area encompasses parts of several states, including southern Michigan, northern Indiana, and northeastern Illinois. The seismic zone is characterized by an elevated rate of small to moderate earthquakes, although it is not as seismically active as areas such as California.
The Southern California Seismic Network (SCSN) is a collaborative effort that monitors seismic activity in Southern California. The network consists of a large array of seismometers and other instruments that detect and measure earthquakes and other seismic events. Key features of the SCSN include: 1. **Monitoring Earthquakes**: SCSN provides real-time data on seismic activity, helping to identify the occurrence, location, and magnitude of earthquakes in the region.
In seismology, "slowness" is a term used to describe the inverse of seismic wave velocity. It is usually expressed in units of seconds per kilometer (s/km). While seismic wave velocity indicates how fast seismic waves travel through the Earth's materials, slowness provides a measure of how much time it takes for the wave to traverse a given distance.
The Shoreline Fault is a geological fault located in the San Francisco Bay Area of California. It is part of the broader system of faults that make up the tectonically active region due to the movements of the Pacific and North American tectonic plates. Key characteristics of the Shoreline Fault include: 1. **Location**: The Shoreline Fault runs along the eastern shore of San Francisco Bay, primarily along the cities of San Jose, Santa Clara, and other areas near the Bay.

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