"Ice eggs" can refer to a natural phenomenon observed in some regions, particularly along certain coastal areas. These are spherical or oval ice formations that resemble eggs, created when water freezes over and is shaped by wind and wave action or when ice crystals form and accumulate. The process typically involves the gathering of small pieces of ice or slush that are combined, shaped, and smoothed into these egg-like structures.
A sea-level curve is a graphical representation that shows changes in sea level over geological time. It typically depicts how sea levels have varied in response to factors like glaciation, tectonic activity, and climate change. The curve can illustrate both long-term trends (over millions of years) and short-term fluctuations (over thousands of years), and it is often constructed using data from various sources, including sediment cores, ice cores, fossil records, and geological surveys.
Interpolation search is an efficient search algorithm that is used to find an element in a sorted array. It works on the principle of estimating the position of the target value within the array based on the values at the endpoints of the segment being searched. This algorithm is particularly effective for uniformly distributed values. ### How It Works 1. **Initialization**: The algorithm starts with two indices, `low` and `high`, which represent the current bounds of the array segment being searched.
BitFunnel is an open-source search engine built to be highly performant and scalable, particularly for large-scale data environments. It focuses on providing efficient indexing and retrieval of information. The architecture of BitFunnel is designed to support fast query performance and low-latency responses, making it suitable for applications that require quick access to vast amounts of data, such as enterprise search and data analytics.
Extendible hashing is a dynamic hashing scheme that allows for efficient insertion, deletion, and searching of records in a database or a data structure, particularly in situations where the dataset can grow or shrink in size. It is designed to handle a dynamic set of keys while minimizing the need to reorganize the hash table structure. ### Key Features of Extendible Hashing: 1. **Directory Structure**: Extendible hashing uses a directory that points to one or more buckets. Each bucket can hold multiple entries.
Linear hashing is a dynamic hashing scheme used for efficient data storage and retrieval in databases and file systems. It is designed to handle the growing and shrinking of data in a way that minimizes the need for reorganization of the hash table. ### Key Features of Linear Hashing: 1. **Dynamic Growth**: Linear hashing allows for the hash table to expand and contract dynamically as data is added or removed. This is particularly useful for applications with unpredictable data volumes.
Locality-Sensitive Hashing (LSH) is a technique used to effectively and efficiently retrieve similar items from large datasets. It's particularly useful in applications involving high-dimensional data, such as image retrieval, text similarity, or near-neighbor search.
The Rocchio algorithm is a classic method used in information retrieval and text classification. It was originally developed for relevance feedback in document retrieval systems. The algorithm helps to improve the relevance of search results by re-evaluating document vectors based on user feedback. Here's a more detailed breakdown of its key components and functionality: ### Key Concepts: 1. **Vector Space Model**: Documents and queries are represented as vectors in a high-dimensional space.
Similarity search is a computational technique used to identify items that are similar to a given query item within a dataset. It is widely used in various fields such as information retrieval, machine learning, data mining, and computer vision, among others. The goal is to retrieve objects that are close to or resemble the query based on certain criteria or metrics.
Engineering failures refer to the breakdown or collapse of structures, systems, or components that occur when they do not perform as expected. These failures can result from various factors, such as design flaws, material defects, inadequate construction, miscalculations, or unforeseen environmental conditions. Engineering failures can lead to significant consequences, including safety hazards, property damage, environmental harm, and financial losses.
Prisons are facilities designed to confine individuals who have been convicted of crimes and sentenced to incarceration. They serve several primary purposes, including: 1. **Punishment**: Prisons impose a penalty on individuals found guilty of violating laws, reflecting society's condemnation of their actions. 2. **Deterrence**: By removing offenders from the community and subjecting them to the consequences of their actions, prisons aim to deter both the individual and others from committing similar crimes.
Crime Prevention Through Environmental Design (CPTED) is a multi-disciplinary approach to deterring criminal behavior through environmental design. The concept is based on the idea that the physical environment can influence people's behavior and can be structured in a way to reduce opportunities for crime. ### Key Principles of CPTED: 1. **Natural Surveillance**: Designing the environment to increase visibility, making it easier for people to observe activities and identify suspicious behavior.
Cyberwarfare refers to the use of digital attacks by one nation-state to disrupt the critical computer systems of another nation-state, typically for the purpose of causing harm, espionage, or gaining a strategic advantage. This form of warfare can involve hacking, virus deployment, denial-of-service attacks, and the manipulation of data and systems to achieve political, economic, or military objectives.
A polariton is a quasiparticle that arises from the strong coupling of light (photons) with a material excitations, such as excitons, phonons, or other collective excitations in a medium. Polariton behavior occurs when the interactions between photons and these excitations are significant enough to lead to the formation of a new type of particle that exhibits mixed characteristics of both light and the excitations of the material.
The number 4 is an integer that follows 3 and precedes 5. It is an even number and can be represented in various contexts, such as a quantity, a score, or a position in a sequence. In mathematics, it has various properties and can be used in operations like addition, subtraction, multiplication, and division.
Cyberdog is a term that can refer to a couple of different things depending on the context. Here are the two most common references: 1. **Cyberdog (Robotics)**: Cyberdog is often associated with robotics and artificial intelligence, particularly in the context of robotic dogs. These robotic companions are designed to interact with humans, perform specific tasks, or provide companionship. Notable examples include Boston Dynamics' Spot robot, which has gained popularity for its agility and capabilities.
The number 168 is an integer that follows 167 and precedes 169. In terms of its properties: - It is an even number. - It is a composite number, meaning it has factors other than 1 and itself.
Gas is one of the four fundamental states of matter, along with solid, liquid, and plasma. In a gaseous state, substances have particles that are widely spaced and move freely, which gives gases the ability to expand to fill the volume of their container. Some key characteristics of gases include: 1. **Indefinite Shape and Volume**: Gases do not have a fixed shape or volume. They take the shape and volume of their container.
Neptunium is a chemical element with the symbol Np and atomic number 93. It is a silvery, radioactive metal that belongs to the actinide series of the periodic table. Neptunium is notable for being the first transuranium element, meaning it was the first element discovered that has an atomic number greater than that of uranium (92). Neptunium was discovered in 1940 by Edwin McMillan and Philip H.
FTPS, or FTP Secure, is an extension of the File Transfer Protocol (FTP) that adds support for the Transport Layer Security (TLS) and the older Secure Sockets Layer (SSL) cryptographic protocols. FTPS is used to securely transfer files over a network, ensuring that the data remains confidential and protected from eavesdropping or tampering during transmission.

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