The world is connected through different forms mainly calls, text messages, emails, social networking websites. Among these social networking media has become more popular. There are definitely higher number of people in your “Friends list” than in your contact list. Why? Because, the world is small! Social apps like Facebook, twitter, Snapchat give opportunity to connect and build relations with others irrespective of country, race etc.
I found this amazing visualization created by one of the intern on Facebook’s data infrastructure engineering team. He used R programming to create such a pretty picture. His main curiosity was to know in what locations people have most connections. The boundaries are not visible clearly but we can identify the country/continent. The brightest region are middle-east part of USA and European countries which represent relationship between people living in those areas. The circular arcs which are routes between two points on earth give resonating effect to the visualization.
He used dataset with millions of records of people with their friends list, location etc. He has shared the details of how he came up with this visualization on the following link.
Source: https://www.facebook.com/note.php?note_id=469716398919
Image source:https://www.quora.com/What-are-some-cool-examples-of-data-visualization-done-in-R