24 hours of world air traffic — in 1 minute

24 hours of world air traffic — in 1 minute: "

From the YouTube caption: 'A 24-hour observation of all the large aircraft flights
in the world (from airplane flight transponders via geostationary orbital satellites) patched together and condensed to
about a minute. You can see it is summer in the north by the location of sunlight on the planet.  With
this 24-hour observation of aircraft travel on the earths surface, we
also get to see the daylight pattern move across the planet. Note the
intensity of traffic at Londons Heathrow Airport. Notice the reduction of activity in each region during the darkness of late night/early morning.'

[via Milena]

(Via bookofjoe.)