Dean Radin is an American researcher and author who is known for his work in the field of parapsychology, which studies experiences and phenomena that are considered to be outside the conventional scientific understanding. He is the Chief Scientist at the Institute of Noetic Sciences (IONS), an organization that explores the nature of consciousness and human potential. Radin has published numerous books and papers on topics such as psychic phenomena, intuition, and the intersection of science and spirituality.
A spinon is a quasiparticle that emerges in certain types of quantum systems, particularly in the context of magnetism and quantum spin systems. In simple terms, a spinon represents the fractional excitation of the spin degree of freedom of particles, particularly in a one-dimensional antiferromagnetic system. In a typical magnetic system, the spins of electrons or other particles interact with each other through exchange interactions.
The number 1000 is an integer that follows 999 and precedes 1001. It is a three-digit number in the decimal system and can also be expressed in various ways: 1. It can be represented in Roman numerals as "M". 2. In scientific notation, it is written as \( 1 \times 10^3 \). 3. In binary, it is represented as "1111101000".
The term "Quaternary Caribbean" generally refers to geological and ecological studies of the Caribbean region during the Quaternary period, which spans from about 2.6 million years ago to the present. This period is characterized by significant climatic changes, including glacial and interglacial cycles, and it has had a profound impact on the geology, biodiversity, and human history of the Caribbean islands.
Density is a physical property of matter that describes the mass of an object relative to its volume. It is commonly defined as the mass of an object divided by its volume, and is usually expressed in units such as kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³).
In category theory, a **quotient object** is a construction that generalizes the idea of quotient sets in set theory and quotient spaces in topology. More formally, a quotient object is used to take an object in a category, along with an equivalence relation on that object, and construct a new object that represents the "set of equivalence classes" of the original object under that relation.
"Inrunner" typically refers to a type of electric motor design, particularly in the context of RC (remote control) vehicles, drones, and other types of hobby applications. Inrunner motors have the rotor (the part that spins) located inside the stator (the stationary part), hence the name "inrunner.
Radiation proctitis is an inflammation of the rectum that occurs as a result of radiation therapy, typically used to treat cancers located in the pelvis, such as prostate, cervical, or rectal cancer. The condition can develop shortly after treatment (acute radiation proctitis) or may appear months or years later (chronic radiation proctitis).
Superficial X-rays refer to a type of X-ray therapy that is primarily used to treat skin conditions, particularly superficial tumors or lesions. This form of radiation therapy is designed to target only the upper layers of skin, unlike conventional X-ray therapy that penetrates deeper tissues. ### Key Features of Superficial X-rays: 1. **Depth of Penetration**: Superficial X-rays are designed to reach only a few millimeters to centimeters into the skin.
A radio-controlled (RC) glider is a type of model aircraft that is designed to fly without the use of an engine or motor. Instead, it relies on aerodynamic lift generated by its wings and is controlled remotely using a radio transmitter. RC gliders are typically lightweight, made from materials like foam, balsa wood, or composite materials, and are known for their ability to soar and glide gracefully through the air.
An "outrunner" typically refers to a type of electric motor design, commonly used in applications like robotics, drones, and RC vehicles. Outrunner motors are characterized by their rotor being the outer part of the motor, while the stator is located inside. This design allows outrunners to generate a high torque at low speeds, making them efficient for applications requiring good power-to-weight ratios and high efficiency.
The Picoo Z is a small, lightweight, remote-controlled indoor helicopter, known for its ease of use and maneuverability. It typically features a coaxial rotor design, which helps provide stability and control during flight. The Picoo Z is often considered an entry-level model for those new to flying remote-controlled helicopters. It can be charged via USB or a dedicated charging dock and usually has a relatively short flight time, making it an ideal choice for indoor flying and casual users.
Jakks Pacific, Inc. is a global toy company known for designing, manufacturing, and marketing a wide range of toys, games, and consumer products. Founded in 1995 and headquartered in Malibu, California, the company has produced products across various categories, including action figures, dolls, role-play items, electronic toys, and outdoor toys. They often create toys based on popular licensed properties, including characters from movies, television shows, video games, and other popular media.
Tomy is a Japanese company that specializes in the design, manufacturing, and marketing of toys, games, and children's products. Founded in 1924, Tomy has a long history in the toy industry and is known for producing a wide range of popular toys, including action figures, playsets, and educational toys. The company often collaborates with popular franchises and licenses, producing toys related to popular characters from anime, video games, and other media.
A radio-controlled (RC) car is a small model vehicle that can be operated remotely using a handheld controller that sends signals via radio waves. These cars are powered typically by batteries, which can be rechargeable or disposable, and they come in various types, styles, and scales. RC cars are popular for both recreational purposes and competitive racing. They can be found in various categories, including: 1. **Electric RC Cars**: Powered by electric motors and usually use rechargeable batteries.
William J. A. Bailey is not widely recognized as a notable figure in public discourse, historical records, or popular culture up to my last update in October 2023. It's possible that he may refer to a private individual, a professional in a specific field, or a lesser-known figure who does not have a significant presence in mainstream sources. If you can provide additional context or specify the field or area of interest related to William J. A.
Acute radiation syndrome (ARS), also known as radiation sickness, is a serious medical condition that occurs after exposure to a high dose of ionizing radiation over a short period of time. This exposure can result from a nuclear accident, radiation therapy, or other incidents involving radioactive materials. ### Symptoms The symptoms of ARS can vary depending on the dose of radiation received and the time since exposure.
Caldwell's view could refer to various perspectives or theories depending on the context, as "Caldwell" could point to different individuals or works in fields such as sociology, psychology, or other disciplines.
An X-ray tube is a specialized device used to produce X-rays, which are a form of electromagnetic radiation. It is a key component of X-ray machines, commonly utilized in medical imaging, industrial applications, and scientific research. ### Components of an X-ray Tube: 1. **Cathode:** This part consists of a filament (a heated wire) and a focusing cup. The filament, when heated, emits electrons through thermionic emission.
TestU01 is a software library designed for the empirical testing of random number generators (RNGs). It was developed by Pierre L'Ecuyer and his collaborators to provide a suite of statistical tests specifically for assessing the quality of RNGs. The library includes a wide range of statistical tests, such as: - Chi-squared tests - Kolmogorov-Smirnov tests - Gap tests - Runs tests, and many others.

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