. Thinking, feeling, doing . w from experience thatobjects decrease in size as theyrecede. From the rear platformof a railway train, the houses, sig-nals, persons, tracks, etc., canactually be seen to shrink to-gether. If we know the actualsize of an object we can esti-mate the distance ; if we knowthe distance we can estimate the size. In estimating the distance ofunknown objects we are guidedgreatly by the view of the groundin front of them. Thus a tree seendown the road can be roughlyestimated in height because theobjects along the road afford anindication of the distance. Since our opinion
. Thinking, feeling, doing . w from experience thatobjects decrease in size as theyrecede. From the rear platformof a railway train, the houses, sig-nals, persons, tracks, etc., canactually be seen to shrink to-gether. If we know the actualsize of an object we can esti-mate the distance ; if we knowthe distance we can estimate the size. In estimating the distance ofunknown objects we are guidedgreatly by the view of the groundin front of them. Thus a tree seendown the road can be roughlyestimated in height because theobjects along the road afford anindication of the distance. Since our opinion of the size ofan object depends on the apparentdistance, any illusions of distancewill produce illusions of size. The fact that subdivided dis-tance appears greater than undi-vided distance was illustrated inFig. 112. In looking toward thehorizon, the glance meets in-numerable objects that break upthe space, whereas in lookingdirectly upward we find a perfectlyclear space. Consequently ob-jects in a horizontal direction ap-. Size anddistance. Foreground.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpsychop, bookyear1895
