The 167th meridian west is a line of longitude that is 167 degrees west of the Prime Meridian, which is located at 0 degrees longitude. Lines of longitude run from the North Pole to the South Pole, and each degree represents a specific angular distance. The 167th meridian west passes through parts of the North Pacific Ocean and crosses into Alaska in the United States. In the southern hemisphere, it crosses the Pacific Ocean as well.
The 26th meridian east is a line of longitude that is 26 degrees east of the Prime Meridian, which is defined as 0 degrees longitude. This meridian runs from the North Pole to the South Pole. Geographically, the 26th meridian east passes through several countries in Africa and Europe. In Africa, it crosses nations such as Egypt, Sudan, South Sudan, and Tanzania. In Europe, it passes through parts of Norway and Sweden.
The 19th meridian west is a line of longitude that is 19 degrees west of the prime meridian, which is designated as 0 degrees longitude. This meridian runs from the North Pole to the South Pole, passing through various countries in Europe and Africa.
The 177th meridian east is a line of longitude that is located 177 degrees east of the Prime Meridian, which is at 0 degrees longitude. It runs from the North Pole to the South Pole and passes through various parts of the Earth. Notably, the 177th meridian east mostly runs through the Pacific Ocean and is close to the International Date Line.
The 178th meridian west is a line of longitude that is 178 degrees west of the Prime Meridian, which is located at 0 degrees longitude. Meridians are used to define the Earth's longitudinal coordinate, and they run from the North Pole to the South Pole. The 178th meridian west is located just west of the International Date Line, which is approximately at the 180th meridian.
GAFOR stands for "General Aviation Flight Operations Risk" assessment. It is a tool or system used to evaluate and manage the risks associated with general aviation operations. GAFOR aims to enhance safety by identifying potential hazards and implementing measures to mitigate those risks during flight planning and operations. The specifics of GAFOR may vary by region or organization, and it may involve considerations such as weather conditions, aircraft performance, and pilot experience.
The 17th meridian west is a line of longitude located 17 degrees west of the Prime Meridian, which is situated at 0 degrees longitude. This meridian runs from the North Pole to the South Pole and passes through several countries as it traverses the globe.
The 21st meridian east is a line of longitude that is located 21 degrees east of the Prime Meridian, which runs through Greenwich, London, England. It runs from the North Pole to the South Pole and is used in geographic coordinate systems to help identify specific locations on the Earth's surface. The 21st meridian east passes through several countries in Africa and Europe.
A "hodograph" is a concept used primarily in the field of fluid dynamics and physics. It refers to a geometric representation of the velocity of a particle or a fluid at a given point in time, typically in a two-dimensional or three-dimensional space. In a more specific sense, a hodograph is a plot or curve that represents the path traced out by the tip of a vector representing velocity, as the particle moves.
The 2nd meridian west is a line of longitude that is located 2 degrees west of the Prime Meridian, which is at 0 degrees longitude. This meridian passes through various countries as it moves from the North Pole to the South Pole. It crosses through parts of the United Kingdom, the North Atlantic Ocean, and continental Europe, as well as parts of Africa. Each meridian west of the Prime Meridian is designated by adding degrees west.
The 24th meridian west is a line of longitude that is 24 degrees west of the Prime Meridian, which is located at 0 degrees longitude. Meridians are vertical lines that run from the North Pole to the South Pole and are used to define geographic coordinates. The 24th meridian west crosses several countries in Europe and Africa. In Europe, it passes through parts of Portugal, and in Africa, it runs through countries such as Algeria and Namibia.
The 36th meridian west is a line of longitude that is 36 degrees west of the Prime Meridian, which is located at Greenwich, England. Meridians are used in geography to specify locations on the Earth's surface and are measured in degrees, from 0 degrees at the Prime Meridian to 180 degrees east and west. The 36th meridian west runs from the North Pole to the South Pole, passing through various countries and bodies of water.
The 5th meridian east is a line of longitude that is 5 degrees east of the Prime Meridian, which is located at 0 degrees longitude and runs through Greenwich, England. Longitude measures the distance east or west of the Prime Meridian. The 5th meridian east passes through several countries in Europe and Africa.
The 36th meridian east is a line of longitude that is 36 degrees east of the Prime Meridian, which is located at 0 degrees longitude. It runs from the North Pole, through various countries in Europe and Africa, and down to the South Pole. Key points along the 36th meridian east include: - **In Europe:** It runs through parts of eastern Europe, notably the eastern part of Hungary and Romania.
The 47th meridian west is a line of longitude located 47 degrees west of the Prime Meridian, which runs through Greenwich, London. This meridian is a vertical line on a map that runs from the North Pole to the South Pole. It passes through several countries, primarily in North America and South America, as well as parts of the Atlantic Ocean. In the context of geography, meridians are used to define locations and can be used in navigation and timekeeping.
The 52nd meridian east is a line of longitude that is 52 degrees east of the Prime Meridian, which is located at the Royal Observatory in Greenwich, England. This meridian runs from the North Pole to the South Pole and passes through several countries, including Russia, Kazakhstan, Uzbekistan, and some parts of the Indian subcontinent.
The 44th meridian east is an imaginary line of longitude that runs from the North Pole to the South Pole, located 44 degrees east of the Prime Meridian, which is defined as 0 degrees longitude and runs through Greenwich, England. The 44th meridian east travels through various countries as it crosses the globe, including parts of Russia, Kazakhstan, Uzbekistan, and others.
The 68th meridian west is a line of longitude located 68 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 various regions in North America, including parts of Canada and the United States, as well as through the Caribbean and parts of South America.
The 50th meridian west is a line of longitude located at 50 degrees west of the Prime Meridian. It runs from the North Pole, through the Arctic, across parts of Canada, the United States, and into the Atlantic Ocean, eventually reaching the South Pole. The meridian passes through several geographic and political regions and can be used in navigation and mapping to help identify locations.
The 64th meridian west is a line of longitude that is located 64 degrees west of the Prime Meridian, which is at 0 degrees longitude. This meridian runs from the North Pole to the South Pole, passing through various regions, primarily in North America, the Atlantic Ocean, and parts of South America.

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