Wilbert Smith Archives Files Box 1130 02 1130-02-p003

Document Text (OCR)

fact is, the object. Th’ © angular size ©) of the he li dimension () of the object and its (1) by the relation @ = £/r. For an unfamiliar object ayainst a featureless background, the separate values oi £ and rare unknown. Invariably for any object, the brain makes some assumption, either consciously ‘or unconsciously, about either £ or r in order to estimate the other. If one value is grossly in error then the other one will be also, and the identification of the object is likely to be totally...