Εκπληκτικός σχηματισμός από 49 ΑΤΙΑ στον ουρανό την νύχτα (αλλά μην σας πιάνει πανικός είναι μόνο ένα σμήνος από quadrocopters)Βίντεο.

In the dead of night, the strange glowing objects take to the sky in perfect formation, forming shapes and moving with pinpoint accuracy.
The the untrained eye, they look like a fleet of tiny UFOs rising up.
However, in reality this is one of the most impressive demonstrations of quadrocopters, tiny four bladed flying machines, flying in a 'swarm'. 
A German art festival flew 49 quadcopters in formation in the night sky. A glowing orb that changed colour was attached to each of the tiny flying four bladed machines
The astonishing demonstration was the centrepiece of the voestalpine Klangwolke, a German art and technology festival which took place on September 1st.

It drew a crowd of 90.000 people to the Donaupark in Linz, where the quadcopters flew above the Danube as part of a 'sound cloud' installation, organised by Brucknerhaus and Ars Electronica.

'The beginning of this story highlight the discovery of electricity and the subsequent triumph of artificial light,' the organisers say.
Το βίντεο εδώ  http://www.dailymail.co.uk

Ready for lift off: The fleet of 49 quadcopters ready to take to the air in Germany for their incredible display

'The story continues with the invention of the telegraph and telephone, from film and television, and the first successful attempt to transmit digital messages from A to B.
'Breathtaking technical effects, a spectacular interplay of human and robotic protagonists, thousands of illuminated letters and artfully illuminated the architecture of the city itself and wonderful soundscapes are the ingredients of this cloud of sound that will tell us about the interconnectedness of our world.
The display used a fleet of 49 quadrocopters, all controlled by computer to within millimetres.
Organisers were able to to program them to move as a single unit, creating 3D shapes and moving in perfect unison to create shapes.
The complex control software even meant the four bladed copters, which cost around £800 each, were unaffected by wind.
They flew high above the city of Linz and above the river Danube as part of the display.
The team spent weeks programming the display, and the specially developed orbs which were attached to each quadrocopter.
The colours were controlled and changed throughout the display to stunning effect.

Up in the air: The quadcopters take off, in perfect formation, to begin their display

UFOs up close: the LED-illuminated quadrocopter by Ascending Technologies being held on the ground for testing purposes at night.

An amazing display: The quadrocopters (left) lighting up the night sky of Linz during the display

Testing: Each of the 49 quadrocopters had a glowing orb underneath it

Testing: The quadrocopters, made by Ascending Technologies, being tested before the event