Scrap Metal Kinetic Sculpture: a bent spring becomes a coupled harmonic oscillator with two modes of oscillation, one along a horizontal direction and one at an angle. As the kinetic energy trades back and forth between these two modes the end of the spring traces out a Lissajous curve (revealed by a white LED) which gets smaller in size each cycle as friction dissipates energy from the system. The full beauty of this motion is captured by recording the light traced using the Slow Shutter Cam Ap

Types of oscillation in the coated electrode process 👍