Xref: utzoo rec.humor:9004 sci.misc:740
Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!homxb!mtuxo!mtune!petsd!cjh
From: cjh@petsd.UUCP (Chris Henrich)
Newsgroups: rec.humor,sci.misc
Subject: Re: quick question
Summary: "yes and no, with reservations"
Message-ID: <1170@petsd.UUCP>
Date: 21 Jan 88 23:09:13 GMT
References: <760@aucs.UUCP>
Reply-To: cjh@petsd.UUCP (C. J. Henrich)
Distribution: na
Organization: Perkin-Elmer DSG, Tinton Falls, N.J.
Lines: 28

In article <760@aucs.UUCP> 820785gm@aucs.UUCP writes:
>
>	So just why DOES a mirror reverse left and right, but not up and down?
Here's an explanation I find satisfying; I read it in some fairly
level-headed magazine.

The mirror, by itself, reverses front-to-back.  Our sense of vision,
seeing the result, mentally applies a rotation to the mirror image.
(Why? I suppose, to get it as close as possible to one's "body
image.")  The axis chosen is from head to feet, in most
circumstances.

The combination of the front-to-back reflection and the vertical
rotation is a left-to-right reflection.


Regards,
Chris

--
Full-Name:  Christopher J. Henrich
UUCP:       ...!hjuxa!petsd!cjh
US Mail:    MS 313; Concurrent Computer Corporation;
            106 Apple St; Tinton Falls, NJ 07724
Phone:      (201) 758-7288
Concurrent Computer Corporation is a Perkin-Elmer company.
"Life is what the least of us make most of us feel the least of us
make the most of." -- Quine