Purejunk - Aural Evolution (Mute) by Purejunk published on 2013/07/20 08:06:56 +0000 Another track from the new album DREAMACHINE out now on Pedigree Cuts. Junodownload: http://www.junodownload.com/products/purejunk-dreamachine-junodownload-exclusive/2256702-02/ Itunes: https://itunes.apple.com/be/album/dreamachine/id675257665 Beatport: http://btprt.dj/1d2mUfy The dreamachine is a stroboscopic flicker device that produces visual stimuli. Artist Brion Gysin and William S. Burroughs's "systems adviser" Ian Sommerville created the dreamachine after reading William Grey Walter's book, The Living Brain. In its original form, a dreamachine is made from a cylinder with slits cut in the sides. The cylinder is placed on a record turntable and rotated at 78 or 45 revolutions per minute. A light bulb is suspended in the center of the cylinder and the rotation speed allows the light to come out from the holes at a constant frequency of between 8 and 13 pulses per second. This frequency range corresponds to alpha waves, electrical oscillations normally present in the human brain while relaxing.