> One of the basic beliefs of modern physics is that the picture
> which is created by the
> refelection of light on a mirror plane is mirror-inverted. The question
> is, what's the source of the mirror's knowledge about where's left and
> where's right.
You are confused. The image in a mirror is not inverted "left-right",
but rather front-back. And "knowledge" of that comes from the plane of
the mirror and its relationship to the sources of the image.
Humans, when looking at themselves in a mirror, INTERPRET the image of
their right hand as being the left hand of an "image person", because
this is common experience of the hands of other people. This is not what
actually happens: for a mirror in the north-south-up-down plane, the
image of your south hand is on the south -- NOT inverted left-right. If
you extend your arm toward the mirror while standing to the west of the
mirror, your real hand is to the east of your shoulder, but the image of
your hand is to the west of the image of your shoulder -- inverted
front-back.
> After all,
> physics has to be based on realistic facts instead of magic.
This is not "magic", this is lack of understanding on your part.
Tom Roberts
Hawkwind - 29 Dec 2006 19:49 GMT
Tom Roberts schrieb:
> > One of the basic beliefs of modern physics is that the picture
> > which is created by the
[quoted text clipped - 20 lines]
>
> This is not "magic", this is lack of understanding on your part.
Tom, you have missed the irony in my posting: it had been meant as a
sarcastic reply to the original post of this thread "how does light
know how fast ... "
May be, this was my fault. English isn't my mother tongue, and to write
ironic posts in a foreign language is always a risk.
Regards,
Hawkwind
> Tom Roberts