Isolation (illusion) important developments was the combination of crystal ball isolations and body-popping/locking/waving dance styles, as seen in the styles of, amongst others, Nik Robson and Matt Hennem in the '90s. Isolation (illusion) In contact juggling, poi spinning, hooping and other types of object manipulation, an isolation is an illusion whereby a prop appears to float in space, with the performer's hands and body moving around it. In reality the performer is supporting the prop, and countering his or her movement relative to the prop. Michael Moschen is originally credited for developing several of the techniques for ball isolations (as well as
Active vibration control comfort with less weight than traditional passive technologies. In the past, passive techniques were used. These include traditional vibration dampers, shock absorbers, and base isolation. The typical active vibration control system uses several components: If the vibration is periodic, then the control system may adapt to the ongoing vibration, thereby providing better cancellation than would have been provided simply by reacting to each new acceleration without referring to past accelerations. Active vibration control strategy has been successfully implemented for vibration attenuation of beam, plate and shell structures by numerous researchers. For active vibration control strategy, the structure should be smart