BritishUFOFiles - uap_vol2_pgs76to90
Document Text (OCR)
perceived and reported as flying much lower than they actually are ‘THE ILLUSION OF OBJECT MOTION 18 It is important to note that (other types of actual flying objects excepted), with those visual phenomena which are due to certain atmospheric effects, little of substantial physical substance actually moves. It is the light seen by the observer that moves from place to place and it becomes visible in those places because the atmospheric conditions (clectrical, particle etc.), allow it to become...