Nikola Tesla (1856-1943) is perhaps best known for developing the Tesla Coil and alternating current motor.
The Tesla valve is just one of the many inventions made by Nikola. The Tesla valve is in essence a one way conduct for fluids. The device mimics the behaviour of a diode by allowing fluids to flow in one direction with approximately 20 times less resistance than in the other way.
The Tesla valve is a great device that can be integrated in the physics lessons. Touching the subjects resistance, microfluidics, diodes, and Tesla him self.