“Only subject to the uncertainty principle.”
They don’t “see” the electron. They measure the wave function which then gives the electron position probability.
May not be in that box.
Says they look at the movement of the electric collective....clearly not a “single” electron.
I wonder if an atomic force microscope could measure the effect of a single electron going through matter. My guess there are relativistic considerations made to calculate the motion, and recording, and saving the electron velocity and position information. Paging Dr. Heisenberg....Dr. Einstein...