The Massey product is a concept from algebraic topology, specifically in the context of homology theory and cohomology. It is named after the mathematician William S. Massey, who introduced the idea. In algebraic topology, cohomology theories provide important algebraic invariants that help classify topological spaces. The Massey product is a way of constructing new cohomology classes from existing ones when working with the cohomology of spaces.
Brightness temperature is a measure used in remote sensing and astrophysics to describe the temperature of an object based on the intensity of thermal radiation it emits. Specifically, it refers to the temperature that a black body (an idealized object that absorbs all incident radiation) would need to emit the same amount of radiation at a particular wavelength as the measured object. In remote sensing, brightness temperature is crucial for interpreting data collected by instruments that observe thermal emissions, such as satellite sensors.
The global temperature record refers to the systematic collection and analysis of temperature data worldwide over time, providing an essential dataset for understanding climate change and its impacts. This record is based on temperature measurements taken from various sources, including: 1. **Ground-Based Weather Stations**: These stations are spread around the globe and measure air temperature at various locations. 2. **Ocean Buoys and Temperature Sensors**: These devices are used to measure sea surface temperatures, which play a crucial role in global climate systems.
A **pyrometric cone** is a device used to measure the temperature of materials during the ceramic firing process. It consists of a tapered, triangular shape made from a specific mixture of clay and other materials that are formulated to melt at precise temperatures. Pyrometric cones are typically used in ceramic and pottery kilns to indicate the heat work (the combined effect of temperature and time) that a piece of pottery or ceramic has experienced.
Sea surface skin temperature (SST) refers to the temperature of the very uppermost layer of the ocean's surface, typically the top few millimeters. This layer can be influenced by various factors, including atmospheric conditions, solar radiation, wind, and evaporation. SST is crucial for understanding various oceanographic and meteorological processes, as it plays a significant role in weather patterns, climate systems, and ocean circulation.
Sulaibiya is a district located in Kuwait, situated in the western part of the country. It is part of the Greater Kuwait area and is known for its residential communities, schools, and various facilities. Like many districts in Kuwait, Sulaibiya has experienced significant development in recent years, making it a popular area for residents. The district is characterized by a mix of modern infrastructure and traditional influences, reflecting Kuwait's cultural heritage.
Overleaf is an online collaborative LaTeX editor that allows users to create and edit documents, particularly academic papers, articles, theses, and reports, using the LaTeX document preparation system. It provides a user-friendly interface, enabling users to write and compile LaTeX code in real-time, making it easier for both beginners and experienced users to produce high-quality documents.
The elasticity tensor is a mathematical object used in the field of continuum mechanics to describe the relationship between stress and strain in a material. It characterizes the material's elastic properties, which govern how it deforms under applied forces. The elasticity tensor provides a comprehensive description of how materials respond to stress in various directions and under various loading conditions.
Toda's theorem is a significant result in computational complexity theory, which establishes a relationship between different complexity classes.
In legal terms, a "witness" is a person who provides testimony or evidence under oath during legal proceedings, such as court trials, depositions, or other legal contexts. Witnesses may present firsthand accounts of events, provide expert opinions, or offer information relevant to the case at hand. There are two main types of witnesses: 1. **Fact Witness**: This type of witness provides direct evidence based on their personal knowledge of the events related to the case.
Anecdotal evidence refers to evidence based on personal accounts, observations, or stories rather than scientific research or statistical analysis. It involves individual experiences or testimonials that may illustrate a point but lack rigorous methodological backing. While anecdotal evidence can provide insights and help generate hypotheses, it is often considered weak as a form of evidence due to its subjective nature and potential for bias.
The concept of "Testimony of Simplicity" is often associated with the Quaker tradition, particularly the Religious Society of Friends. This testimony emphasizes living a life that is simple, honest, and free from excess. It reflects a belief that simplicity can lead to spiritual clarity and a deeper connection with God. The Testimony of Simplicity encourages individuals to evaluate their lives, possessions, and priorities, seeking to eliminate unnecessary distractions and material burdens.
STEP, or the Space Technology Experiment Program, is a series of satellite missions designed to test and demonstrate new technologies in space. These missions often focus on various aspects of satellite technology, such as propulsion systems, communication systems, and payload capabilities. The primary goal of STEP is to validate new concepts that can be utilized in future satellite designs and missions, helping to advance space technology. Specific missions under the STEP program may vary, with each focusing on different technological advancements or experimental setups.
The solar eclipse of May 29, 1919, is notable for its significance in the field of astronomy, particularly because it was used to test Albert Einstein's theory of general relativity. During this total solar eclipse, the Moon passed in front of the Sun, allowing astronomers to observe the bending of light from distant stars as it passed near the Sun's massive gravitational field.
Tetrahydrocannabinolic acid (THCA) is a non-psychoactive cannabinoid found in the cannabis plant. It is the precursor to tetrahydrocannabinol (THC), which is the primary psychoactive component of cannabis. THCA is produced in the cannabis plant during its growth and maturation stages and is typically found in high concentrations in fresh cannabis flowers.
Sadık Eliyeşil is a Turkish artist and performer known for his work in various fields, including music and theater. He may also be involved in visual arts or other creative expressions, as many artists often explore multiple mediums. Not much detailed or specific information is widely available about him, so it's best to look for his works or any recent projects he may be involved in for a deeper understanding of his contributions to the arts.
David Wilkinson (1797–1868) was an influential American machinist and inventor, best known for his contributions to the development of machine tools during the industrial revolution. He is often credited with inventing the first successful milling machine in 1818, which played a critical role in the manufacturing of precision metal parts. Wilkinson's milling machine was notable for its ability to produce complex shapes and designs with greater accuracy and efficiency than previous methods.
"The Internet Galaxy" is a concept popularized by Manuel Castells in his book titled *The Internet Galaxy: Reflections on the Internet, Business, and Society*, published in 2001. In this work, Castells explores the social, cultural, economic, and political implications of the Internet and how it has transformed the way we communicate and interact. He examines the Internet as a new social space that facilitates the flow of information and reshapes relationships across various spheres of life.
The Recombination Hypothesis is a concept primarily used in the fields of genetics and evolutionary biology. It refers to the process by which genetic material is shuffled and recombined during sexual reproduction, leading to genetic variation in offspring. In more detail, during meiosis (the type of cell division that produces gametes, or sex cells), homologous chromosomes can exchange segments of DNA through a process called crossing over. This results in new combinations of genes that are different from those present in either parent.
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





