From an article I saw in the New York Times:
When we look in the mirror, our relative beauty is not the only thing we misjudge.
Imagine you are standing in front of a bathroom mirror; how big do you think the image of your face is on the surface? And what would happen to the size of that image if you were to step steadily backward, away from the glass?
People overwhelmingly give the same answers.
To the first question they say, well, the outline of my face on the mirror would be about the size of my face. As for the second question, that’s obvious: if I move away from the mirror, the size of my image will shrink with each step.
Both answers, it turns out, are wrong.
Outline your face on a mirror, and you will find it to be exactly half the size of your real face. Step back as much as you please, and the size of that outlined oval will not change: it will remain half the size of your face (or half the size of whatever part of your body you are looking at), even as the background scene reflected in the mirror steadily changes.
Incredibly this half-size rule does not apply to the image of someone else moving about the room. If you sit still by the mirror, and a friend approaches or moves away, the size of the person’s image in the mirror will grow or shrink as our innate sense says it should.
I found it hard to believe so drew a line from my outside of my face to a mirror and it ended up outside my reflection.??
I suppose it is the same as when Einstein said if you go faster you age less. It seems wrong but it is right.
