I couldnt sleep at a time like that.
I do know that i can make the rod point any way that i like.
The most difficult part was trying to figure out if it was actually working, or if my subconcious was tired of holding marking flags and repeatedly stepping over the schedule 40 pipe that i laid on the floor in my living room.
The angle at which the vertical rod is held, and gravity: proportionally amplified by the length of the horizontal section of rod.
So there you have it, its likely i'll have an extention cord on the floor tonight...