Paul Allen was an American entrepreneur, philanthropist, and investor, best known as the co-founder of Microsoft alongside Bill Gates. He was born on January 21, 1953, and passed away on October 15, 2018. Allen played a crucial role in the early development of personal computing and the software industry. Beyond Microsoft, Allen was involved in various ventures and investments across diverse fields, including technology, science, and entertainment. He founded the investment firm Vulcan Inc.
Holism and evolution are concepts that can be connected in various fields, particularly in philosophy, biology, and systems theory. Here's a brief overview of each concept and how they might interrelate: ### Holism **Definition**: Holism is the idea that systems and their properties should be viewed as wholes, rather than just the sum of their parts. This perspective emphasizes the interdependence and interconnectedness of components within a system.
Appliance recycling refers to the process of collecting and processing old or unused household appliances in an environmentally friendly manner. This involves the proper dismantling, recovery, and disposal of components such as metals, plastics, and electronic materials. The goal is to reduce waste and minimize the environmental impact associated with landfill disposal. Key aspects of appliance recycling include: 1. **Collection**: Old appliances can be collected through various means, including curbside pickup, drop-off centers, or specialized recycling events.
In mathematics, the term "continuation map" can refer to different concepts depending on the context, particularly in the realms of topology, functional analysis, and other areas of mathematics related to the study of continuous mappings and their properties. Here are a few interpretations: 1. **Topological Continuation Map**: In topology, a continuation map may refer to a function that extends (or continues) a function defined on a smaller space to a larger space while preserving certain properties, like continuity.
FoldiMate is a home appliance designed to automate the process of folding laundry. It aims to save time and effort by allowing users to place freshly washed clothes into the machine, which then folds them into neat stacks. The original concept was introduced as a prototype and later showcased to the public, primarily targeting households looking to simplify the chore of folding laundry.
Homological connectivity is a concept from algebraic topology and homological algebra that relates to how well-connected a topological space or algebraic object is in terms of its homological properties. It can involve examining the relationships between different homology groups of a space. In a more specific context, homological connectivity can refer to the lowest dimension in which the homology groups of a space are nontrivial.
Bodyweight exercises are strength training movements that utilize an individual's own body weight as resistance rather than relying on external weights or gym equipment. These exercises can be performed anywhere and are often popular for their convenience and accessibility. They help improve strength, flexibility, endurance, and overall fitness without the need for specialized equipment. Common examples of bodyweight exercises include: 1. **Push-ups**: Target the chest, shoulders, and triceps.
Parastremmatic dwarfism is a rare form of disproportionate dwarfism characterized by specific skeletal and physical features. It is primarily marked by shortening of the long bones in the limbs, resulting in a shorter stature. This condition often has a distinctive postural aspect, where individuals may exhibit a characteristic stance or posture. The term "parastremmatic" refers to the specific bone structure and potential joint issues associated with this form of dwarfism.
The 18th century was a period of significant developments in mathematics across Europe, including Hungary. One of the most notable Hungarian mathematicians of that era was **János Bolyai** (1802–1860), known for his contributions to geometry, specifically non-Euclidean geometry. However, while Bolyai's most significant work was published in the 19th century, his developments were influenced by the mathematical environment of the late 18th century.
Sisu Nemo is a technological tool designed for managing multi-channel customer interactions. It leverages artificial intelligence to facilitate and optimize customer support and engagement across different platforms, such as social media, email, and chat. The platform aims to streamline communication, provide insightful analytics, and enhance the overall customer experience by improving response times and ensuring consistency in replies.
In the realm of physics, a graviton is a hypothetical elementary particle that mediates the force of gravitation in quantum field theory. According to quantum mechanics, forces between particles are usually transmitted by other particles known as "force carriers" or "gauge bosons." For example, photons are the force carriers of electromagnetic force, while W and Z bosons mediate weak nuclear force.
Multiferroics are materials that exhibit more than one primary ferroic order parameter simultaneously, typically ferroelectricity, ferromagnetism, and/or ferroelasticity. In simpler terms, these materials can display both magnetic and electric polarization simultaneously, which is a rare and fascinating property in the field of condensed matter physics.
"Physician, heal thyself" is a phrase that originates from the Bible, specifically from the Gospel of Luke 4:23. It has been interpreted in various ways but generally conveys the idea that one should take care of their own problems before addressing the issues of others. In a broader sense, it highlights the importance of self-awareness and self-care, particularly for those in positions of authority or care, such as physicians or leaders.
Robert Mercer is an American computer scientist, hedge fund manager, and political donor known for his influential role in politics and finance. He is a co-CEO of Renaissance Technologies, a highly successful hedge fund known for its quantitative trading strategies. Mercer gained significant attention for his involvement in political campaigning, particularly during the 2016 U.S. presidential election, where he supported Donald Trump's candidacy and contributed to various political initiatives, including backing data analytics firms like Cambridge Analytica.
In algebra, particularly in commutative algebra, the radical of an ideal is a fundamental concept used to study the properties of ideals and rings.
The Process Capability Index (Cpk) is a statistical measure used to evaluate a manufacturing process's ability to produce items that meet specified tolerances or design limits. It assesses how well a process can produce output within the defined specifications and is important in quality control. Here's a breakdown of key concepts related to Cpk: 1. **Specification Limits**: These are the upper and lower limits defined for a process's desired output. For example, if a part must measure 10 mm ± 0.
Srinivasacharya Raghavan, commonly known as S. Radhakrishnan, was an eminent Indian philosopher, scholar, and statesman who played a significant role in the field of Indian philosophy and education. He was born on September 5, 1888, and he served as the second President of India from 1962 to 1967.
Indian cosmologists are scientists from India who study the cosmos, including the origins, evolution, and large-scale structure of the universe. They employ various fields of physics, mathematics, and astronomy to understand cosmic phenomena. India has a rich history in astronomy and cosmology, dating back to ancient times, and continues to contribute significantly to contemporary research. Indian cosmologists work in various institutions and universities, often involved in theoretical work, observational astronomy, and theoretical physics.
Indian particle physicists are scientists and researchers from India who work in the field of particle physics, which is the branch of physics that studies the fundamental components of matter and the forces that govern their interactions. Particle physicists investigate the properties and behaviors of subatomic particles, such as quarks, leptons, bosons, and other fundamental particles, often using large particle accelerators and detectors.
The Berlekamp–Van Lint–Seidel graph (often abbreviated as BVS graph) is a specific type of strongly regular graph named after its contributors, Elwyn Berlekamp, Alexander Van Lint, and Franz Seidel. This graph is notable in combinatorial design theory and graph theory.

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