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From: leeway@sdcrdcf.UUCP (Lee Gold)
Newsgroups: net.followup
Subject: Re: An oldie revisited...
Message-ID: <942@sdcrdcf.UUCP>
Date: Sat, 24-Mar-84 12:21:39 EST
Article-I.D.: sdcrdcf.942
Posted: Sat Mar 24 12:21:39 1984
Date-Received: Mon, 26-Mar-84 08:31:43 EST
References: <2549@fortune.UUCP>
Reply-To: leeway@sdcrdcf.UUCP (Lee Gold)
Organization: System Development Corporation, Santa Monica
Lines: 21


THE MOON ILLUSION
quoted from ELEMENTS OF PSYCHOLOGY by Krech & Crutchfield

The smaller apparent size of the moon when seen high in the sky
is related to the upward tilt of the eyes in the head when looking upward.

To check this, lie on a tilted board so you look directly at the moon
riding high in the sky without having to raise your eyes in your sockets.
The moon will look as large as it does on the horizon.

The primary source of this (disillusioning?) information is
E. G. Boring, "The Moon Illusion," American Journal of Physics II,
1943, pp. 55-60.

--Lee Gold