Norman Tuck Norman Tuck Norman Tuck is a kinetic sculptor based in San Francisco. A retrospective exhibition of his work, Art Machines, has traveled to seven museums within the United States and Europe. Related Exhibits Lariat ChainThis moving loop of chain sets up strange, hovering wave patterns. OscylinderscopeSee how strings behave when they vibrate and make sound. UroborusThis "tail-devourer" symbolizes an eternal loop. Your Turn CountsTurn the crank and add to the tally kept by this whimsical counter. A Pendulum ClockAt first glance, the giant see-through-erector-set-like structure seems to be a realization of one of Leonardo da Vinci's mechanical inventions.