A degauss causes a magnetic field inside the tube to oscillate rapidly, with decreasing amplitude. Particles effectively oscillate in a harmonic well, damped by collisions. In an electromagnetic wave the electric and magnetic fields oscillate. A true resonance will smoothly oscillate while a coincidental near resonance will circulate. Spherical harmonics are functions that oscillate over the surface of a sphere. But the contributions of the sinusoidal terms only oscillate around zero. Neutrinos oscillate between different flavors in flight. In linear polarization, the fields oscillate in a single direction. In a mechanical wave, stress and strain fields oscillate about a mechanical equilibrium. An undamped car will oscillate up and down. Neutrinos oscillate among the flavours as they move. If the crystal is accurately shaped and positioned, it will oscillate at a desired frequency. The electron will then oscillate back and forth as the voltage changes. This lift may be steady, or it may oscillate due to vortex shedding. This causes the lead crystal to oscillate, thereby producing its characteristic sound.