Here's a good article about the moon illusion from NASA's
Science@NASA series
"On Saturday
night, June 30th, step outside at sunset and look around. You'll see a
giant moon rising in the east. It looks like Earth's moon with the
usual craters and seas, but something's wrong. This full moon is
strangely inflated. It's huge!
You've just
experienced the Moon Illusion"...Read the whole article
here
http://science.nasa.gov/headlines/y2007/27jun_moonillusion.htm
--
Jane Houston Jones
Senior Outreach Specialist, Cassini Program
JPL - 4800 Oak Grove Drive, MS 230-205
Pasadena, CA 91109 818-393-6435
jane.h.jones@jpl.nasa.gov
Cassini SOC http://soc.jpl.nasa.gov/index.cfm
What's Up?
http://education.jpl.nasa.gov/amateurastronomy/index.html