Linked stainless steel shapes spinning around a circular axis. Thanks for watching! Subscribe for new video every Friday! ► http://bit.ly/1b7cigB Spins in 1/2 knot winds but is stable in much stronger. Light clinking sound of links touching. All stainless replaceable bearings. 17 feet high by 8 feet wide. More at http://www.howeart.net The most amazing perpetuum mobiles, useless machines, experiments, inventions, strange and extraordinary science artefacts and art kinetic objects from aro