No, the laser test you designed is overly complex. Just shine a laser over a large lake. The laser is 12 inches over the water., and the other side is a laser dot, 12 inches above water. That is what a proof is.
Do it at Lake Victoria.... Which is 200 miles wide...
Do it at Lake Victoria.... Which is 200 miles wide...
You won't see the laser....
Why not measure the length of your driveaway with your car's odometer?