Beautiful Data Visualisation Shows How Busy The Skies Are Over London

London is one of the busiest cities in the world when it comes to air travel with 5 airports dotted around the capital. To show just how busy it is and how efficiently they run the skies NATS have shared this video that shows a typical day over London. This is all the more impressive when you think that one tiny mistake could cause the death of hundreds of people and a major incident.