On 2002-02-25 13:25, Wiley wrote:
On 2002-02-25 12:55, John Kierein wrote:
I think that you can measure the charge to mass ratio of the electron using the cathode ray tube method. I think the mass is the gravitational mass in that case.
This would be inertial mass. The force is electrostatic, F
= q E
. The resulting acceleration and deflection would give inertial mass.
My thought is to modify this experiment to balance the electostatic force with gravity, m g - q E = 0 and no deflection. If it can be done, then the electron has a gravitional mass. Of course, you would need a really long CRT.