Squirmles is a toy that became popular as a novelty item, particularly among children. It consists of a flexible, worm-like figure that can wiggle and squirm, often powered by a small motor or battery. The appealing aspect of Squirmles is their ability to move in a lifelike manner, which can be entertaining to watch and play with. They often come in a variety of colors and styles, and some variations might be designed for specific themes or characters.
Jewelpet is a multimedia franchise created by Sanrio and Sega Sammy Holdings. It was initially launched in Japan in 2008 and centers around adorable, magical creatures known as Jewelpets, which are based on various gemstones. Each Jewelpet has its own unique personality and magical powers. The franchise encompasses various forms of media, including animated television series, movies, video games, toys, and merchandise.
A semipermutable subgroup is a concept in the field of group theory, particularly in the study of group extensions and solvable groups. A subgroup \( H \) of a group \( G \) is called **semipermutable** if for every normal subgroup \( N \) of \( G \) such that \( N \) is a subset of \( H \), the subgroup \( H \) permutes with \( N \) in \( G \).
"Brain Age: Train Your Brain in Minutes a Day!" is a puzzle video game developed by Nintendo for the Nintendo DS handheld console. Released in 2005, the game was designed by neuroscientist Ryuta Kawashima and aims to promote mental exercises to enhance cognitive functions. The central concept of the game is to engage players in a variety of mini-games and puzzles that challenge different aspects of their brain, such as memory, attention, and problem-solving skills.
InfiniBand is a high-performance network technology commonly used in data centers, supercomputers, and high-performance computing (HPC) environments. It is designed to provide high data transfer rates, low latency, and efficient communication between computers, servers, and storage systems. ### Key Features of InfiniBand 1.
Quasi-opportunistic supercomputing is a term that refers to a model of utilizing available computational resources in a flexible and opportunistic manner, often in environments where resources are dynamically allocated or shared among multiple users or applications. This approach aims to optimize the use of computing power by making it possible to leverage underutilized resources that would otherwise remain idle.
ServerNet is a high-performance interconnect technology developed by Digital Equipment Corporation (DEC) in the 1990s. It was primarily designed for clustering and connecting servers in a high-speed and high-reliability environment. ServerNet provides a way for multiple systems to communicate efficiently, allowing them to work together as a single entity, which is especially useful in data centers and high-performance computing (HPC) environments.
The Gaia hypothesis, proposed by scientist James Lovelock in the 1970s, suggests that the Earth and its biological systems behave as a single, self-regulating entity. According to this hypothesis, living organisms interact with their inorganic surroundings in a way that maintains conditions suitable for life.
Next Generation Supersonic Transport (NGST) refers to ongoing efforts and projects aimed at developing advanced supersonic passenger aircraft that can travel faster than the speed of sound (Mach 1), while also addressing many of the environmental, economic, and regulatory challenges that limited the success of earlier supersonic jets, such as the Concorde.
The North American NAC-60 is a specification used in the field of electrical testing and standards. Specifically, NAC-60 refers to a standard for the use of electric vehicle (EV) charging systems in North America, particularly focusing on the interoperability and safety of EV infrastructure. The NAC (National Electrical Code) designation is related to electrical installations and outlines requirements aimed at ensuring safety for electrical systems, including those that involve high voltage and current used for charging electric vehicles.
"Cassie's Law" refers to a piece of legislation that was introduced in various jurisdictions to address the issue of domestic violence and to enhance protections for victims. The name is often derived from a case involving an individual named Cassie, who may have suffered from domestic violence or whose story highlighted the gaps in existing laws and protections for victims. While specific details vary by location, Cassie's Law typically aims to: 1. Improve the reporting and response mechanisms for domestic violence incidents.
Supercritical adsorption refers to the process of adsorbing molecules from a supercritical fluid onto a solid adsorbent. A supercritical fluid is a state of matter that shares properties of both gases and liquids. It occurs when a substance is above its critical temperature and critical pressure, allowing it to diffuse through solids like a gas while maintaining a higher density and solvating ability similar to that of a liquid.
Surface growth refers to the process by which materials accumulate on the surface of a substrate or a previously existing layer. This concept is prevalent in various fields, including materials science, chemistry, biology, and physics. Here are some contexts in which surface growth is significant: 1. **Materials Science**: In this field, surface growth often pertains to processes like thin film deposition, where atoms or molecules are added to a substrate to create a layer.
The Exponential distribution is a continuous probability distribution often used to model the time between events in a Poisson process. This distribution is characterized by its memoryless property, which implies that the probability of an event occurring in the next instant is independent of how much time has already elapsed.
Statistical reliability refers to the consistency and dependability of a measurement or assessment tool in producing stable and consistent results over time. In other words, it assesses the degree to which an instrument yields the same results under the same conditions, thus indicating its stability and accuracy. ### Key Concepts Related to Statistical Reliability: 1. **Types of Reliability**: - **Test-Retest Reliability**: Measures consistency over time. The same test is administered to the same group at different times.
A plane table is a surveying instrument used for mapping and land surveying. It consists of a horizontal flat surface (the table) mounted on a leveling device, such as a tripod. The primary components of a plane table setup include: 1. **Table**: A flat board or surface where the surveying is done. The surface typically has a grid or layout for plotting points. 2. **Tripod**: A three-legged support that holds the table in a stable and level position.
A ranging rod is a surveying tool used in various fields, such as construction and land surveying, to establish straight lines or points over a distance. It is typically a long, slender pole, often made of wood or fiberglass, and marked with measurements or graduations. Ranging rods are used in conjunction with other surveying equipment, such as levels and theodolites, to ensure accurate alignment and measurements.
The Discrete Weibull distribution is a probability distribution that is used to model data that can be represented in discrete form, particularly where the data exhibit characteristics similar to those described by the continuous Weibull distribution. While the Weibull distribution is commonly used for modeling life data, reliability, and failure times, the discrete version applies to situations where events occur at discrete points in time or with discrete observations.
Bicing is a public bicycle-sharing service in Barcelona, Spain. Launched in 2007, it is designed to promote sustainable transport and reduce traffic congestion in the city. Users can rent bicycles from designated stations located throughout Barcelona for short periods, typically up to 30 minutes per trip without additional charges. To use Bicing, individuals typically need to register online and can pay for a subscription, either for a single year or a shorter duration.
A Certificate of Entitlement (COE) is a key component of the vehicle registration system in Singapore. It is essentially a license that allows an individual to own and use a vehicle in Singapore for a specified period, typically ten years. The COE system was introduced to regulate the number of vehicles on the road and manage congestion.

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