Nickel nanowires in a rotating magnetic field. Movie by Anne Bentley.
Self-propelled nanowires. Movie by Tom Mallouk et al., "Catalytic Nanomotors: Autonomous Movement
of Striped Nanorods," J. Amer. Chem. Soc., 126 (41), 13424-13431 (2004).
Inertial motion of M & Ms: place some M&Ms on a piece of paper,
slowly move it in one direction then quickly move it in the opposite,
see the particles move a bit. Do it many times and you can accumulate
large total motions.
Inertial motion of microparticles: microparticles moving on shear
piezos driven at kHz frequencies.
200 µm glass beads on glass coverslip
8 kHz parabolic waveform ±70 V
up - down - up
Movie 1 by Michael Eglin.
Inertial motion of microparticles: microparticles moving on shear
piezos driven at kHz frequencies.
40 µm glass beads on glass coverslip
50 kHz square wave ±30V
Movie 4 by Michael Eglin.