Unidentified flying objects.

In this German art and technology festival which took place on September 1st in the dead of night the astonishing demonstration was the centrepiece of the voestalpine Klangwolke. 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 of Electronica. In the beginning of this story highlight the discovery of electricity and the subsequent triumph of artificial lights were used the organisers say. Breathtaking technical effects in a spectacular interplay of human and robotic protagonists. Thousands of illuminated letters and artfully illuminated the architecture of the city itself and wonderful sounds scape's as speakers were added to give that almost screeching effect 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 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 this inspiring display. The team spent weeks programming their display, and the specially developed orbs which were attached to each quadrocopter. The colours were controlled changed dramatically throughout the display into stunning effect.These strange glowing objects take to the sky in perfect formation just forming into lighted shapes and moving with pinpoint accuracy. To the untrained eye, they look like a fleet of tiny UFOs rising up from out of the planet Earth. However in reality this is one of the most impressive demonstrations of quadrocopter’s yet known as the tiny four bladed flying machines just flying in a 'swarm' like an inventive type of J.C.B.