Marigold is a warm, vibrant shade of yellow or orange that is often associated with the marigold flower, which features blooms in similar hues. The color can vary in tone from a bright, sunny yellow to a deeper, more burnt orange, and it is commonly used in design and fashion to evoke feelings of warmth, positivity, and cheerfulness.
A rip tide, commonly referred to as a rip current, is a powerful, narrow channel of water that flows away from the shore. It is often created when water from breaking waves accumulates in shallow areas and is funneled back out to sea, creating a strong current. Rip currents can be dangerous for swimmers because they can pull individuals away from the shore very quickly.
An elastomer is a type of polymer that has elastic properties, meaning it can stretch and return to its original shape without permanent deformation. These materials are characterized by their ability to undergo significant elastic deformation when a force is applied and then recover quickly once the force is removed. This makes elastomers particularly useful in a wide range of applications where flexibility and resilience are important.
"Shore lead" typically refers to the leadership role or guidance provided to a team or organization involved in coastal or marine activities, such as environmental conservation, maritime operations, or coastal resource management. This role may involve coordinating efforts, facilitating communication among stakeholders, and ensuring that projects align with organizational goals and policies related to shoreline management.
The South Pacific Convergence Zone (SPCZ) is a region of the South Pacific Ocean characterized by the convergence of trade winds from the southeast and northeast. This convergence zone is typically located roughly between 5° and 15° S latitude and extends from the western Pacific, near the Solomon Islands and Papua New Guinea, to the eastern Pacific, near French Polynesia. Key features of the SPCZ include: 1. **Weather Patterns**: The SPCZ is associated with significant precipitation and thunderstorms.
Submarine groundwater discharge (SGD) refers to the flow of groundwater into the ocean or other bodies of water from underwater aquifers. This process occurs along coastlines, where freshwater from underground aquifers seeps out through sediments and interacts with seawater. SGD can occur in various forms, including: 1. **Diffuse Discharge**: A gradual and widespread movement of groundwater through sediments and into the ocean.
The subtropical front, also known as the subtropical jet stream, is a boundary located in the middle latitudes of the atmosphere, typically between the latitudes of approximately 20° to 40° in both hemispheres. It represents a transition zone between the warmer, more stable air of the tropics and the cooler, more variable air of the mid-latitudes.
Wave height refers to the vertical distance between the trough (the lowest point) of a wave and its crest (the highest point). It is a critical parameter in oceanography, meteorology, and various marine activities, including navigation, fishing, and surfing. Wave height can be influenced by factors such as wind speed, wind duration, and the distance over which the wind blows across the water surface (known as fetch).
Thermohaline circulation, often referred to as the "global conveyor belt," is a large-scale movement of seawater driven by differences in temperature (thermo) and salinity (haline) across the world's oceans. This circulation plays a crucial role in regulating climate and distributing heat, nutrients, and gases across the planet. Here's how it works: 1. **Temperature (Thermo)**: Warm water is generally found near the equator, where it is heated by the sun.
In physics, a "defining equation" typically refers to a fundamental equation that describes the relationship between key physical quantities in a particular context. These equations derive from physical laws and principles and are used to define specific phenomena or systems. For example: 1. **Newton's Second Law**: \( F = ma \) (where \( F \) is force, \( m \) is mass, and \( a \) is acceleration) is a defining equation for classical mechanics.
Wikipedia has several categories that are named after physical quantities, which help organize articles based on various aspects of physics. Categories often include: 1. **Length** - Articles related to distance measurements and units of length. 2. **Mass** - Information about mass and related concepts, as well as units like kilograms. 3. **Time** - Topics related to time measurement, time intervals, etc. 4. **Temperature** - Articles concerning temperature measurement and scales.
Robin egg blue is a light, pastel blue color that resembles the hue of a robin's egg. It is characterized by a soft, calming tone that can vary in brightness and saturation but is generally a gentle, muted blue with slight green undertones. This color is often associated with springtime, new beginnings, and nature, and it has been used in various contexts, such as interior design, fashion, and art.
Audio frequency refers to the range of sound frequencies that the human ear can typically hear, which is generally from about 20 hertz (Hz) to 20,000 hertz (20 kilohertz, or kHz). These frequencies encompass the sounds typically encountered in music and natural sounds. Here’s a breakdown of the audio frequency spectrum: - **Infrasound**: Frequencies below 20 Hz, which are generally inaudible to humans but can be felt as vibrations.
Drugfire is a firearms identification technology developed by the Federal Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) in the United States in the 1990s. It was designed to assist law enforcement agencies in linking firearms to crimes through the analysis of bullet and cartridge casing markings. Drugfire works by capturing images of the unique markings left on fired bullets and casings, which are then compared to a database of ballistic evidence from other cases.
The center of percussion (COP) is a concept in physics and engineering, particularly relevant to mechanics and dynamics. It refers to a point on a swinging or rotating object where a perpendicular impact will result in no reaction force felt at the pivot point or hinge. This means when the object is struck at this point, the force of the impact does not transmit through the pivot, allowing for a smoother motion without jolting or shaking at the pivot.
Crystallinity is a term used to describe the degree to which a material has a structured, ordered arrangement of its constituent atoms or molecules. In simpler terms, it refers to how "crystal-like" a substance is. Crystalline materials have a repeating pattern in their atomic or molecular structure, which extends in three dimensions. This regular arrangement contributes to distinctive properties such as melting points, hardness, and optical characteristics.
The term "Green's function" in mathematics and physics typically refers to a type of function used to solve inhomogeneous differential equations subject to specific boundary conditions. The specifics of what you are asking about regarding "Green's function number" are unclear, as it is not a standard term in the context of Green's functions. In general, Green's functions are used in various fields such as quantum mechanics, electrostatics, and engineering to relate the solution of a differential equation to a point source.
Electrical measurements refer to the process of quantifying electrical properties and parameters, such as voltage, current, resistance, power, and energy, within electrical circuits and systems. These measurements are crucial for understanding the behavior of electrical devices, troubleshooting issues, ensuring safety, and improving efficiency. Key concepts in electrical measurements include: 1. **Voltage (V)**: The potential difference between two points in a circuit, measured in volts (V).
In particle physics, "flavor" refers to the different types or varieties of fundamental particles, particularly quarks and leptons. Each flavor corresponds to a distinct type of particle that has different properties, such as mass and charge. For example, the six flavors of quarks are: 1. Up (u) 2. Down (d) 3. Charm (c) 4. Strange (s) 5. Top (t) 6.
Fuel efficiency refers to the measure of how effectively a vehicle converts fuel into energy for motion. It is typically expressed as miles per gallon (MPG) or liters per 100 kilometers (L/100 km) and indicates how far a vehicle can travel on a specific amount of fuel. Higher fuel efficiency means that a vehicle can travel further on less fuel, resulting in reduced fuel costs and lower emissions of greenhouse gases and pollutants.

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