Spoof surface plasmons, also known as spoof plasmons or surface plasmon polaritons (SPPs) on structured surfaces, are electromagnetic waves that mimic the behavior of surface plasmons, which are collective oscillations of free electrons at the interface between a conductor and dielectric. However, spoof surface plasmons are realized in materials that do not necessarily have the free-electron characteristics typically required for conventional surface plasmons.
Cloaking refers to the idea of rendering an object invisible or undetectable to various forms of observation, whether visual, electromagnetic, or other types of detection. Theories of cloaking span several domains, including physics, optics, and materials science. Below are some key concepts and theories related to cloaking: 1. **Transformation Optics**: This is a theoretical framework that uses the mathematical principles of general relativity and coordinate transformations to design materials that can control the path of light.
Cartesianism is a philosophical and scientific system based on the ideas of the French philosopher and mathematician René Descartes, who lived in the 17th century. It is anchored in his contributions to philosophy, mathematics, and the scientific method.
Inshore coastal areas of the United Kingdom refer to the regions of coastline that are relatively close to the land, typically extending from the low-water mark up to the boundary of territorial waters, which is approximately 12 nautical miles from the shore. These areas are significant for a variety of reasons, including ecological, economic, and recreational aspects.
Transcendental anatomy is not a widely recognized term in mainstream anatomy or medical disciplines. However, it could refer to the exploration of anatomy beyond the conventional anatomical structures, possibly incorporating philosophical, metaphysical, or holistic perspectives on the body. In certain contexts, "transcendental" may refer to ideas or concepts that go beyond the physical aspects of anatomy and encompass considerations like the relationship between the mind and body, the interconnectedness of various systems, or the spiritual significance of anatomical structures.
The Airline Teletype System, often referred to as Teletype or simply TTY, was an early communication method used within the airline industry for transmitting information. It relied on teleprinter machines that would send and receive typed messages over telephone lines. ### Key Features: 1. **Communication**: The system enabled airlines, travel agents, and other stakeholders to send and receive flight schedules, ticketing information, passenger details, and other operational data rapidly.
A Mesonet is a network of automated weather monitoring stations designed to collect detailed and localized weather data over a specific geographic area. The term "meso" refers to the meso-scale, which is a term used in meteorology to describe weather phenomena occurring at a scale of a few kilometers to hundreds of kilometers, typically lasting from several minutes to several hours.
Storm spotting refers to the practice of observing and reporting on severe weather phenomena, particularly storms such as thunderstorms, tornadoes, and hurricanes. Storm spotters are usually trained volunteers who keep an eye on local weather conditions and communicate their observations to local weather authorities, such as the National Weather Service (NWS) in the United States. The primary goals of storm spotting include: 1. **Safety:** Spotters provide real-time information that can help protect lives by alerting communities about incoming severe weather.
WeatherBug is a weather forecasting service that provides real-time weather information, alerts, and forecasts. It is available through various platforms, including a website, mobile apps, and desktop applications. WeatherBug offers features such as live weather radar, satellite imagery, severe weather alerts, and detailed forecasts for specific locations. The platform uses a network of weather stations and various data sources to provide accurate and localized weather information.
A Climate Data Record (CDR) is a long-term, high-quality dataset that is specifically designed to provide reliable information on climate variables over time. CDRs are systematically collected and processed to ensure consistency, accuracy, and availability for assessing climate change and variability. Key characteristics of Climate Data Records include: 1. **Long-Term Perspective**: CDRs typically span multiple decades, enabling the analysis of climate trends and variability over significant periods.
EMWIN, or the Emergency Managers Weather Information Network, is a system developed by the National Oceanic and Atmospheric Administration (NOAA) to provide timely and critical weather information to emergency managers and other officials responsible for public safety. The primary purpose of EMWIN is to facilitate the dissemination of weather data, forecasts, and warnings to agencies and organizations that need to make informed decisions during severe weather events.
The Hazardous Inflight Weather Advisory Service (HIWAS) is a program developed by the Federal Aviation Administration (FAA) in the United States to provide pilots with critical information about hazardous weather conditions that may impact flight safety. It is particularly designed to deliver timely and relevant information to pilots flying in airspace where traditional weather reporting may not be as readily available.
A Terminal Aerodrome Forecast (TAF) is a weather forecast specifically designed for the needs of aviation at an airport or aerodrome. It provides expected weather conditions within a specified timeframe, typically covering a 24 to 30-hour period, and is issued four times a day. The TAF includes information on various weather elements, such as: - Wind direction and speed - Visibility - Weather phenomena (like rain, snow, fog, etc.
The Palmer Drought Index (PDI) is a quantitative measure used to assess and monitor drought conditions. Developed by meteorologist Wayne Palmer in the 1960s, the index provides a standardized way to evaluate the severity of drought based on meteorological and hydrological factors. The PDI measures the balance between moisture supply (precipitation) and moisture demand (evapotranspiration) over time, allowing for an assessment of soil moisture levels.
The Sperry–Piltz Ice Accumulation Index (SPIAA) is a meteorological index created to measure the potential for ice accumulation on surfaces, particularly roads and other infrastructure, during winter weather events. It considers various meteorological factors such as temperature, precipitation, and wind conditions to provide a quantitative estimate of the likelihood and severity of ice accumulation. The SPIAA is valuable for weather forecasting and urban planning, as it helps authorities anticipate the impacts of freezing rain or similar weather phenomena.
Meteorological stations, often referred to as weather stations, are facilities or locations equipped to measure various atmospheric and environmental conditions. These stations collect data that can include a range of meteorological variables such as: 1. **Temperature**: Measured using thermometers, it indicates how hot or cold the atmosphere is. 2. **Humidity**: Measured using hygrometers, it reflects the amount of moisture in the air.
The Bandwidth-Delay Product (BDP) is a concept in networking that represents the amount of data that can be "in transit" in the network at any given time. It is calculated by multiplying the bandwidth of the network (usually measured in bits per second) by the round-trip time (RTT), which is the time it takes for a signal to travel from the sender to the receiver and back again (measured in seconds).
"Barometric light" is not a standard term widely recognized in scientific literature or common discussions about light or atmospheric phenomena. However, it could be interpreted in a couple of ways based on its components: 1. **Barometric Pressure and Light:** The term might refer to the effects of atmospheric pressure (barometric pressure) on light behavior, such as the way light is refracted or scattered in the atmosphere under varying pressure conditions.

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