Presentation shown below figures a global air transport within 24h. We have to say thank you to the students and employees of Zurich School of Engineering for that job.

Presentation longs 1min 12sec and shows 24 hours of airplane flights all arround the world.
The length of every second is equivalent to twenty minutes.
Every yellow point is a plane with average 250 passengers.
Most of the flights from USA to Europe are started during the night, but the back way – in the day.