The world that appears to unfold in front of our noses is solely our mind’s concoction, the result of billions of neurons creating the visual experience. In reality, photons of light possess neither color nor brightness. ![]() ![]() Language, custom, and a sort of neurological magic make us regard the visual world as occurring outside our bodies. The brain uses these disparate images to stitch together the 3D world we see in front of us - or, at least, seem to see in front of us.Īs Roy Bishop, former editor of The Royal Astronomical Society of Canada’s Observer’s Handbook, repeated in each annual edition, visual images occur strictly within the skull. In practice, distant objects appear identical in both eyes, while foreground targets appear shifted relative to those far-off markers. So, let’s examine this realm in all its dimensionality.Īs readers probably know, seeing in three dimensions requires that each eye see a slightly different image. Nonetheless, you may have heard that binoviewers do not deliver true 3D. Binoviewers split light from your telescope into two beams, sending one to each eye for more comfortable - and natural - viewing that often turns celestial scenes three-dimensional. Sales of binoviewers for telescopes and matching eyepieces have exploded in the past five years, showing that backyard astronomers are really getting into two-eye observing.
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