Humans, unlike horses and birds, have two eyes that are located side-by-side in the front of their heads. Because of the eye separation (~6.5 cm) each of the two eyes sees a slightly different image ...
[Photo: dimovi on Instructables] Prying eyes at work? Want some privacy at home? If you have had enough of others peering over your shoulder, looking at your computer screen and judging you for ...
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