Did you ever wonder how it is possible to select or "flag" an image in PBase editing
mode? The mystery is solved here. When you click in the little box to select an image,
you are activating the device pictured above. Upon activation, it goes to work,
unfurling a subroutine that identifies the image as "flagged" and stands by, inert,
waiting for another signal. It's that simple. This machine is a monument to the
persistence of pioneering engineers who are constantly trying to improve things.
By the way, the holes on the flagging "thingy" were part of the design: they reduce
data turbulence when several images are flagged at once.