Ein tolles Spielzeug. Hier gibt es noch mehr davon.
Found at Maker Faire in New York September 20, 2014. Pretty cool piece that used metal filings, magnets and music to dance and move in mesmerizing patterns. The piece was created by Technofrolics.
http://youtu.be/xDuyz9qrhUk
(Direktlink, via BoingBoing)