_:n56924096c4e34625be333967f81bc105xb0
<http://schema.org/description>
"This has to be the most fascinating and beautiful audio-visual extravaganza since Gantz Graf: According to Semiconductor (artists duo Ruth Jarman and Joe Gerhardt), &#8220;20 Hz observes a geo-magnetic storm occurring in the Earth&#8217;s upper atmosphere. Working with data collected from the CARISMA radio array and interpreted as audio, we&hellip;"
<http://5against4.com/2011/10/21/semiconductor-20-hz/>