on the ground or the sky?
2006-09-08 12:30:37 · 5 answers · asked by chels_37 1 in Science & Mathematics ➔ Physics
images formed on your retina are upside-down
2006-09-08 12:33:42 · update #1
The lenses of your eyes cause the image of the outside world to be "upside down" on your retina. It has nothing to do with which way we are walking. I actually read about an experiment where volunteers wore goggles that flipped the image over, and their brains adjusted after a few days so they saw everything right-side up again
2006-09-08 12:34:46 · answer #1 · answered by Ken H 4 · 1⤊ 0⤋
It's not a theory, it's a physiological fact. The visual signals sent to the brain from the retina actually do have everything "upside down". The visual cortex in the brain automatically "flips" the signals so that they appear to be right side up. By the way, this is only true for vertebrate eyes. Eyes in other groups of animals work differently since they evolved independently.
2006-09-08 12:36:02 · answer #2 · answered by stevewbcanada 6 · 0⤊ 0⤋
Its not just a theory, it actually occurs due to the lens nature of your eyes focusing the light inverted on the back of your retinas.
However, your brain knows to flip the images automatically so you "see" it correctly in your mind.
People actually walk on the ground, of course, just because it upside down in the back of your eyes down make it so in real life, it just happens due to the way the light focuses.
2006-09-08 12:57:39 · answer #3 · answered by mrjeffy321 7 · 0⤊ 0⤋
The images recieved by the lens are upside-down due to the way light travels. The brain flips that to make it right-side up again.
2006-09-08 17:58:24 · answer #4 · answered by _anonymous_ 4 · 0⤊ 0⤋
Never heard of a theory like that. But its impossible to walk on the sky unaided.
2006-09-08 12:32:22 · answer #5 · answered by sur2124 4 · 0⤊ 2⤋