27’ H and 101’ L - Aluminum pendulums, magnets, steel support structure

with Shawn Lani, Peter Richards, Susan Schwartzenberg & LIGO Scientific Staff

A wall of 122 wind-activated pendulums are each magnetically coupled with its neighbors so that the whole wall moves as a slowly undulating surface similar to a large piece of fabric rippling in the wind. In winds greater than 15 knots, the wall’s coherent wave-like movement becomes more chaotic as the pendulums break their mutual magnetic coupling. The pendulums can also be manually activated.