The amazingly diverse languages of Africa. This a continent with a very high linguistic diversity, there are an estimated 2200 African languages.

The indigenous languages of Africa are divided into 6 major language families: Afroasiatic, Nilo Saharan, Niger-Congo A, Niger-Congo B (Bantu), Khoisan, Austronesian.

Map of Africa using ethnically drawn borders

SkyFi is on a mission to help GIS experts and data analysts replace manual labor research with easier access to Earth observation data. What was once a high-tech process is now simple, affordable, and accessible to everyone. Start using SkyFi now to find and access the  high-quality, affordable satellite photos you need for any project.

Swindon, England, is home to what may be the most confusing-looking intersection ever created:  the world’s first “magic roundabout” (also known as a “ring junction”).

The complex interchange actually consists of five separate smaller roundabouts supporting clockwise traffic, all situated around one larger central roundabout that runs counterclockwise.

Despite its frightening appearance, this configuration is far more efficient than the conventional single-ring roundabout. It has been adapted to create other ring junctions around Britain.

The topoBuilder Application allows users to select a location and generate OnDemand topo maps that are delivered via email.

2ft elevation contours

The Prime Meridian is the universally decided zero longitude, an imaginary north/south line which bisects the world into two and begins the universal day. The line starts at the north pole, passes across the Royal Observatory in Greenwich, England, and ends at the south pole. Its existence is purely abstract, but it is a globally-unifying line that makes the measurement of time (clocks) and space (maps) consistent across our planet.

The Greenwich line was established in 1884 at the International Meridian Conference, held in Washington DC. That conference's main resolutions were: there was to be a single meridian; it was to cross at Greenwich; there was to be a universal day, and that day would start at mean midnight at the initial meridian. From that moment, the space and time on our globe have been universally coordinated.

what3words is described as 'What3words encodes geographic coordinates into 3 dictionary words (for example, the Statue of Liberty is located at planet.inches.most). what3words is different from other alphanumeric location systems and GPS coordinates in that it displays 3 words rather than long strings of' and is an app in the travel & location category. There are more than 25 alternatives to what3words for a variety of platforms, including Windows, Online / Web-based, Linux, Mac and Android. The best alternative is QGIS, which is both free and Open Source. Other great apps like what3words are ArcGIS, GRASS GIS, FixPhrase and SAGA GIS.

There are multiple issues with the What3Words algorithm.

For many squares in cities in the UK, there are a series of other squares which will only vary by one of the three words i.e. two of the words are common e.g. ///bank.fine.fishery and ///bank.fine.even. These relationship between these squares is predictable.

The distance between these squares that only vary by a word is often below 50km, but can be under 1km.

For some of these squares, the only variation in that remaining different word with be a single letter “s” e.g. ///bank.fine.fishery and ///bank.fines.fishery.

Certain word pairs – such as take/takes, fine/fines, plot/plots, bump/bumps and space/spaces – are more likely to result in close pairs.

This same issue can impact other errors such as spelling mistakes and homophones.

The word list is limited to 2,500 words in cities in the UK, greatly increasing the probability of these errors happening.

A side effect of defining these densely populated areas results in some of these pairs of squares being even closer than they would be normally.

Combining these issues means that there are many squares under 10km apart that can be confused by changing a word to and from a plural.

Mercedes-Benz, Jaguar Land Rover, Ford, Lamborghini, and Lotus also use w3w. //

What3words divides the planet into 3×3m squares and assigns each one a randomly generated three-word address. //

What3words is a mapping company that looks at navigation differently. It divides the planet into a grid of squares, each measuring 3×3 m. Each one of those squares gets its own identifier made up of three random words—hence the company's name.

So, 1 World Trade Center, Ars Technica's corporate HQ (as opposed to the orbiting one), includes the "squares" cycles.rugs.lucky, feels.thigh.bigger, and gifts.spray.ties.

The fact that this large building with a single street address (285 Fulton St.) can have multiple what3words addresses highlights the utility of this approach, which is magnified in the case of something like a stadium or industrial park. And since what3words' grid is independent of street addresses, it means you can also use it for parks, hiking trails, or literally any other location on the planet.

Guess the WORLDLE in 6 guesses.
Each guess must be a valid country, territory, ...
After each guess, you will have the distance, the direction and the proximity from your guess and the target country.

A new WORLDLE will be available every day!
About distance
The distances displayed correspond to the distances between the selected and the target territory centers.
For instance, the computed distance between United States and Canada is around 2260km even if they have a common border.

Compare the size of countries, regions and cities

Country size comparison

Using this tool, you can see the relative size of one country compared to another. We'll show you the perimeters of two different countries on the same map. To get started, select two countries below, and hit "Go!".

Fast quick optimized driving directions delivery route planning software website for multiple locations stops and single or multiple delivery vehicles Find the best route with Speedy Route

What are the best free route planning software with unlimited stops for deliveries? A quick guide to the trade-offs, advantages, and best practices.