Apple QuickTime movie | 1992-04-07 | 3.5 MB | 160x120 | 10fps | 54 seconds | [MooV/TVOD]
Transcription: To understand how we see, let's turn the tables on the human eye and look at it instead of through it. The light reflected by any object we look at passes through the lens of the eye and is focused upside down on the sensitive surface called the retina. This retina passes the impression onto the optic nerve which sends it to the brain and we see it right side up. The reflection will stay on the retina as long as the object is in view. When we look away or take the object away, the images disappear. But notice that the image in the brain does not disappear immediately. It fades a fraction of a ...
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