Why is the image in a mirror reversed horizontally but not vertically ?
931729
It's not reversed, you only think it is. The left side reflects to the left side, the right side reflects back to the right side, same with top and bottom.
459285
Photos capture an image of light.  And mirrors essentially reflect photons. We know that photons, particles of light, have wave/particle properties and when they are reflected off of an object, they are affected by the surface of the object of mirror. Look at your self on both side of a spoon.  The concave part, the one that is curved in, should have an upside down version of you, and on the otherside, convex, you will have an elongated version of yourself.  \nIf you look at the queston from a quantum phsyics perspective.  Every time you look in the mirror, you will see a different you. This is because you are actually seeing different light reflecting off a different surface.  \nI really dont know much about cameras, but thank God for photo shop.  Mirrors are a bad invention in my opinion.  People get caught up in having to maintain an external image that the rest of the world sees, when in reality the image of ourselves that we should really work on is the one inside our heads.  Anyways, I hope I answered your question to some extent.
22182
it is an optical illusion.
435473
It does neither. It just reflects a laterally inverted image which has nothing to do with left-right or top-bottom.
793532
Good question!  However, 1-way mirrors are not really 1-way: they let as much light out as they do in!  They depend on the fact that the "invisible" side is less well illuminated than the "visible" side.
910956
Select the object or image and then press the modify menu, transform, flip horizontal.\n\nso in the menu bar - Modify > Transform > Flip Horizontal.\n\nWould have been much easier if it said mirror :P I just figured that one out for you. I might muck around with it now. Hope this helps.
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.
496604
Try doing this with an asymmetric figure. The translation and reflection won't give the same result.\n\nHowever, you can get any translation by doing *two* reflections one after the other.
59344
A mirror preserves absolute direction, both horizontally and vertically.  Say you're facing west; the reflection of your north hand is on the same side of the room as your real north hand -- namely the north side.  And the reflection of the top of your body is toward the ceiling, just like the real top of your body.  That's because north vs. south and up vs. down are the same for everybody.  But right and left are not absolute directions.  Your north hand is on the right because you're facing west.  If someone were facing east, their north hand would be on the left.  And your reflection in this example _is_ facing east because you are facing west, and the reflection is looking back at you.  So, your reflection's north hand, which is the same as your north (that is, right) hand, is its left hand.
583103
It is reflected in y-axis, the image will lie in Quadrant I
1103211
It doesnt reverse. You see yourself how others see you. It's not like the light waves are switching sides. . . it's the fact that they're staying on their own side that makes it look like they switched!!
818655
The glass is poured to the desired thickness, and then silver is applied to the back to give it's reflective surface.  It is then coated with another substance to prevent the light from passing all the way through.  You then see your reflection.\nIn a piece of two way mirror, the silver is applied to the front of the mirror and the other non-reflective substance is omitted.  Thus, you can see all the way through.\nOne good way to tell if you are looking at a piece of two way mirror, is to put your finger up to the glass.  If there is no 'space' between the tip of your finger and the glass...it may be 2-way.  If there is a 'space', it may be only one-way.\nNext time you go into a store, look around for mirrors that appear in the most unusual places.  More than likely, these are 2-way.
152319
Not to sound like a nerd, but since it is at an angle higher than that of your face, it reflects your light pattern (Your face) in an upside down angle. To make a long story short, its like a fun house mirror. Try tilting it at different angle and maybe you will see yourself right side up!
1127946
The image which is formed on the retina through the lens of the eye is very similar to a pin-hole camera, the image is reversed both horizontally and vertically. The lens of the eye is purely used to focus this images.
565258
A mirror reflects light.  Light from an object strikes the mirror and changes direction so that the angle of incidence equals the angle of reflection.  As a result, light appears to come from behind the mirror, at an apparent distance equal to the distance they are in front of the mirror.\n\nI see no connection to the Boognish.
1143228
Lay on your side and the mirror flips things up and down.  That may give you a hint that the symmetry is associated with your eyes being placed on a horizontal plane when standing.  The orientation of the flip, per se, is all in your head (well, the construction of your head).
672737
Must be the perspective. They should actually look smaller (further away) because of the extra distance the light travels from the muscles to the mirror to your eyes.