- Some Robotic Physics:
The thing that makes your cell phone buzz is a vibrational motor
and they cost about a dollar.
The vibration causes streaming in a fluid and if you break the rotational
symmetry the motor can swim! This paper illustrates a novel and low cost
robotic swimmer that has no external moving parts.
A coin vibrational motor swimming at low Reynolds number,
published in Regular and Chaotic Dynamics, 2016, Vol. 21, No. 7-8, pp 902-917.
Talk on the Swimming Vibrational Motor
Click on the figure to see the movie!
Showing the glycerin velocity field in the frame of the swimming motor.