why can't we say that world we see is actually inverted?
488095
good question i appreciate it intelligent
234094
Theory of perception, why do people in Australia think Americans are walking upside down? It is what your taught in school , that doesn't fit with what you see/hear/taste/smell... Its a similar principle to why so many people get sick the first time they play virtual reality. The game says your moving around, but your body tells you your not. Theory of perception.
329257
Because the Earth is so large, our only reference frames are on Earth, and to us our reference frame is flat.  If we were large enough so that our size could be comparable to Earth, then we would see planets and stars sideways or upside down, if they even had an orientation.\n\nOur sense of "down" is due to gravity, and on every place on Earth "down" is really toward the center of the Earth.  Since our natural position is to be standing on our feet, our weight pulls "down" toward our feet and we perceive to be standing "up."
60554
They see the exact same side at a different angle.  Right now I'm in china and the angle is really weird to me for some reason, but it's still the same side.
918902
that is a paradox.  such an object can not exist.  i have a story for you:\n\nWise teacher was asked by an unbeliever, can God make the whole world small enough to fit into an egg?  Wise teacher said "come with me".  The two men went outside and climbed to the top of the mountain.  Wise teacher asked "what do you see?"  Unbeliever said "I see mountains, rivers, trees. . . I feel like I can see the whole world from here."  \n\nWise teacher said "See?  God can fit the whole world into your eyeball, which is smaller than an egg."
700811
This is because the earth is so large - relatively - as compared to our size. While standing on the earth, we are unable to see the change in slope of the earth's surface. Our line of sight will make it seem as if the earth is flat, but our sight is really a tangent, being very close to the line of the earth's surface. An example of this is when look out at the ocean, and see the masts of a ship first in the distant horizon. This is because at that distance, the curve of the earth is more prominent.
9937
It's because the world in question is ruled by unicorns and merry elves. In "that" world it's only natural that everything is either square or circle. Here of course we have irregular shapes and other geometrical figures like triangles, trapezoids and such. Must sound very strange to you I believe.\n\nUs earthlings, we have strange ways.
4941
It doesn't invert left and right.\n\nThat's why your mirror image appears to be using its left hand when you do something with your right hand -  if you saw a real person, his left hand would be there. If you could step out of your body and move to where the mirror image stands, your right hand would appear to be to the left of that point of view, because you would have turned around by 180°.
192182
It's because left and right are relative terms, while up and down refer more to absolutes.  If were facing east looking into a mirror, our right hand would be south, and our left hand north.  Referred to north and south, there is no inversion--move your "north hand" and the image's "north hand" moves; move your south hand and the images south hand moves.  The problem is that left/right is a special sort of orientation that is centered from ourselves and distinguishes from two symmetrical sides of ourselves.  You right hand looks like the reflection of you left hand, but when you look at the reflection of your left hand, that reflect is still on *your* left.  If you imagine that the image reflected is some different person, and you try to set up a left/right orientation with resepct to the person in the mirror, it will be backwards--but that's only because it is erroneous to think that the reflection of your right hand is your reflection's left hand.  It isn't; it just looks like a left hand because our bodies display left/right symmetry.  If your head looked like the mirror image of your feet, you might make the same mistake, but the body does not display any manner of top/bottom symmetry.
805592
first: by world, do you mean earth? \nIf so, think about all things spinning, are they not always more or less round or oval shaped? Actually so is the earth. \nOn the other way,I think that by spinning, a lot of things get that shape. Especially as like the stars and planets, they tend not to be in a fully finish state. Ok, that is my answer but I am no astronom only a nurse... MC
391347
I think I know what you're talking about. It's in California on Highway 1 and it's called the Mystery Spot. \nThe gravity there isn't really off balance, but there is an optical illusion there that makes you think the world is a little crooked.\nThis is thier web site:  http://www.mysteryspot.com/\nI visited there a few years ago, but really was not impressed. Gravity seemed just fine to me.
1126649
Yes, everything's upside down from down under!\n\nIf you're facing south looking at an early crescent setting in the northern hemisphere, the Moon is on your right, and the Sun is further to the right (west), so the right (west) side of the Moon is illuminated.  From the southern hemisphere, you're facing north, and west is on your left.  The western side of the Moon is still illuminated, but now you see it on the left. The Moon, of course, appears upside down.
185547
not without knowing it is right to a reasonable degree. For instance if this were 1400 and you asked if the world was flat i would say of course but we now know that it is round. Science is constantly changing thier answers to a lot of questions due to the fact that new research is proving them incorrect.
1018124
Actually, there has been a proven world out there that is parallel to our own! However, it's not the same concept of parallel that you read in science fiction books. In theory, the parallel world to our world is the exact same, but with a couple of difference. The first difference is that you can't see the parallel world. Also, in this parallel world, it is the exact opposite of ours. That means that when something in our world is positive charge, the world parallel to ours has a negative charge. This phenomenon exist to satisfy the balance of the universe in electrical charge. However, this parallel world can't have support life because it would unstable its atomic structure if it does.\n\nThis a fascinating prediscovery of the secrets of the universe.
42171
A fact is that the world is round (it can be proved). An opinion is the world is flat (a statement that can be proved wrong).
108047
reality (the first answerer) is mostly correct, but it's more of a phychological effect than an optical illusion. When you look in the mirror and raise your right hand, it looks like "the guy in the mirror" is raising his left hand. Because of this, you perceive the mirror to be flipping left and right. But all the light is just being reflected directly back. If you hold writing up to the mirror, it looks backwards left to right. If you hold it vertically, it looks backwards top to bottom. There is no left-right top-bottom asymmetry. Think about it for awhile and you will realize that a mirror doesn't "flip" anything, it's all in your mind.
730887
I have a pair of those interesting deep-dish-shaped double-domed parabolic mirrors from Edmund Scientific, the top one sits upside-down on the bottom one, and the top one has a hole in it.  So when you put something inside it, and move away at an angle, an image of the object appears to be sitting above the top dish.  I ask people, "Hand me that little pink pig sitting on that dish".  They see it, reach for it, pick up nothing, reach for it again, and see their fingers apparently pass right through a solid object.\n\nWhat is the reality there?  My eyes tell me there's a little pink plastic pig sitting on the top of that dish.  Yet when I try to pick it up, my fingers pass right through it.  But then I distort the mirrors a little, and the pig blurs in an odd way that lets me see that he's actually a reflected image from inside the unit.  And if I understand optics sufficiently, I understand that it is possible, with certain arrangments of parabolic mirrors, to erect "real" images (versus the more common "virtual" images that we see in most mirrors and lens) of objects, and even design and build versions of my own, with the effects and capabilities fully determinable in advance.  That's reality.\n\nReality does exist.  Granted, we have a limited and distorted view of it due to the limitations of our senses, but it does exist.  For example, this desk in front of me seems like a solid object.  But in truth, my view of it is limited by the fact that my eyes are not able to resolve the electrons orbiting the nuclei that make up the desk, and that the vast majority of this desk is vacuum, therefore the fact that, when I touch this supposedly-solid desk, what's actually happening is that the electrostatic field generated by the electrons of the desk are exerting a force against the electrostatic field of the electrons orbiting the nuclei of the atoms making up my fingers.  There are no "solids" touching anything, just fields pushing against each other the way 2 magnets can push against each other.\n\nTo me it looks like reality begins immediately outside your eyes.  All is reality.  The only place it ends is inside your head, when you misinterpret what your limited senses tell you.