The piston is raised by increasing the gas inflow to the chamber. The device has a gas outlet at the top of the piston chamber, so when the piston is raised high enough, gas can escape and the piston drops down again before the inflow pushes it back up. At steady state we get the oscillation. If the inlet pressure is too high the piston just won't drop back down at all. You can see a diagram of the device here: physicsdemos.caltech.edu/demos/22701/3.jpg
Very nice demo! How was the oscillation initiated?
The piston is raised by increasing the gas inflow to the chamber. The device has a gas outlet at the top of the piston chamber, so when the piston is raised high enough, gas can escape and the piston drops down again before the inflow pushes it back up. At steady state we get the oscillation. If the inlet pressure is too high the piston just won't drop back down at all. You can see a diagram of the device here: physicsdemos.caltech.edu/demos/22701/3.jpg
@@caltechsfeynmanlecturehall3112 Ha very nice thanks! Great series of demonstrations!
Hii sir .