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Smaller the further away

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blackadder10 | 20:28 Mon 26th Sep 2005 | How it Works
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Why do objects appear smaller the further away they get?
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Avatar Image lizzysparkle

Our perception of the size of an object is affected by the size of the image on the retina of the eye.  The more
distant object covers a smaller arc of the visual field and therefore has a smaller image on the retina and we see it as smaller.

21:38 Mon 26th Sep 2005
Avatar Image bernardo
They subtend a smaller angle.
00:56 Tue 27th Sep 2005
Avatar Image landie

So that you can fit objects that are closer to you into your field of vision. If everything remainred the same size you would be scared to set foot outside the door.

17:01 Thu 29th Sep 2005
Avatar Image cupra
Dougal, big cow close - small cow far away ;)
10:57 Fri 30th Sep 2005

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