GPS·C, or GPS Copy, is a technology used in the context of Global Positioning System (GPS) receivers and applications. It typically involves the transmission of GPS signals in a modified format or copy to enhance the functionality or performance of GPS services. However, the specifics can vary, and "GPS·C" is not a commonly referenced standard like GPS L1, L2, etc.
Loran-C (Long Range Navigation-C) is a terrestrial radio navigation system used primarily for maritime and aviation purposes. It was developed in the mid-20th century and became operational in the 1950s. The system functions by using a network of land-based radio transmitters that broadcast precise timing signals. These signals are received by a Loran-C receiver, which calculates the user's position based on the difference in the time it takes for the radio signals from multiple stations to reach the receiver.
The Plate Boundary Observatory (PBO) is a scientific initiative that is part of the EarthScope project in the United States. It was established to study the interactions of Earth's tectonic plates, particularly along the boundaries where they meet. The PBO provides crucial data for understanding seismic activity, crustal deformation, and the processes that shape the Earth's surface.
SailTimer is a marine navigation technology that aids sailors in optimizing their routes and improving sailing efficiency. Developed by a company called SailTimer Inc., the system typically includes devices such as wind and GPS sensors that provide real-time data on wind speed, direction, and the boat's position. This information helps sailors make informed decisions about the best sailing routes, taking into account factors like current, wind conditions, and tide.
AlterGeo was a location-based advertising and analytics platform that provided services primarily for businesses looking to engage customers through location tracking and targeted advertising. The platform utilized geolocation data to help companies create customized marketing campaigns that reached users based on their physical location, thereby increasing the relevance and effectiveness of those campaigns. In addition to its advertising services, AlterGeo also offered analytics tools that allowed businesses to measure the effectiveness of their location-based marketing strategies, track customer interactions, and analyze foot traffic patterns.
A linear transformer driver (LTD) is a type of electrical circuit designed to drive a transformer, particularly in applications that require high efficiency and low distortion. The functionality and design are optimized for using linear modulation techniques to control the output waveform, making them suitable for various applications, including audio amplification and signal processing.
A Vehicle Tracking System (VTS) is a technology used to monitor and manage the location and movement of vehicles in real-time. This system typically employs a combination of Global Positioning System (GPS) and telecommunications to provide accurate location data and vehicle information. Here are key components and features of a vehicle tracking system: 1. **GPS Technology**: The primary technology used to determine the vehicle's location. GPS receivers installed in the vehicle continuously receive signals from satellites, allowing for precise location tracking.
The 104th meridian east is a line of longitude that is located 104 degrees east of the Prime Meridian, which is at 0 degrees longitude. This meridian runs from the North Pole to the South Pole, passing through various countries and regions.
The 115th meridian east is a line of longitude that is 115 degrees east of the Prime Meridian, which is situated at 0 degrees longitude. This meridian runs from the North Pole to the South Pole. Geographically, the 115th meridian east passes through several countries, including: - **Mongolia** - **China** - **Laos** - **Vietnam** - **Indonesia**, among others.
The 120th meridian west is a line of longitude located 120 degrees west of the Prime Meridian, which is defined as 0 degrees longitude. This meridian runs through North America, including parts of the United States and Canada, as well as parts of the Pacific Ocean. Specifically, in the United States, the 120th meridian west passes through states such as California, Nevada, and Oregon. It is often used as a reference point in geography and navigation.
The 124th meridian west is a line of longitude located 124 degrees west of the Prime Meridian, which runs through Greenwich, England. This meridian runs from the North Pole to the South Pole and passes through several regions in North America. In the United States, the 124th meridian west primarily traverses the states of Washington, Oregon, and California.
The 129th meridian east is a line of longitude that is 129 degrees east of the Prime Meridian, which is defined as 0 degrees longitude. It runs from the North Pole to the South Pole. This meridian passes through several countries, including parts of Russia, Mongolia, China, and it reaches the Pacific Ocean before continuing southward. Geographically, the 129th meridian east crosses various landscapes, including mountainous regions and agricultural areas.
The 157th meridian east is a line of longitude that is located 157 degrees east of the Prime Meridian, which is the zero-degree longitude line that runs through Greenwich, England. Like all lines of longitude, the 157th meridian runs from the North Pole to the South Pole. The 157th meridian east passes through the Pacific Ocean and some islands including parts of the Aleutian Islands of Alaska.
The 131st meridian east is a line of longitude that is 131 degrees east of the Prime Meridian, which is located at 0 degrees longitude. It runs from the North Pole to the South Pole and passes through various countries and regions. Key points along the 131st meridian east include: - In the Northern Hemisphere, it crosses parts of Russia and is close to several Pacific islands. - In Australia, it runs through the Northern Territory and New South Wales.
"Fotmal" does not appear to refer to any widely recognized term, brand, or concept as of my last knowledge update in October 2023. It could be a misspelling, a niche term, or something that has emerged more recently.
The 138th meridian east is a line of longitude that is 138 degrees east of the Prime Meridian. It runs from the North Pole to the South Pole, passing through several countries and territories. In the northern hemisphere, it crosses parts of Russia, Mongolia, and China. As it moves southward, it travels through countries such as Japan and connects with various islands in the Pacific Ocean.
The 140th meridian east is a line of longitude that is 140 degrees east of the Prime Meridian, which is located in Greenwich, England. It runs from the North Pole to the South Pole and passes through several countries, including Russia, Mongolia, and Japan. In terms of geographic significance, the 140th meridian east serves as a reference point for navigation and mapping.
As of my last update in October 2023, "Girah" does not appear to refer to a widely recognized term, concept, or entity in general knowledge. However, it could pertain to various contexts depending on the language or field: 1. **Language:** In some cultures or languages, "girah" can refer to a knot or a link, especially in Persian where it is used in textiles or crafts.
The 154th meridian east is a line of longitude that is 154 degrees east of the Prime Meridian, which is the reference line for longitude at 0 degrees. This meridian runs from the North Pole to the South Pole, passing through various regions, including parts of the Pacific Ocean and some islands. Specifically, the 154th meridian east crosses through: - The Pacific Ocean, where it primarily travels.
A **Kan fibration** is a concept from category theory, particularly in the context of simplicial sets and homotopy theory. It generalizes the notion of a fibration in topological spaces to simplicial sets, allowing one to work with homotopical algebra. To understand Kan fibrations, we must first familiarize ourselves with simplicial sets.

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