Benham's Disk

From: DHANNA (
Date: Thu Mar 16 2000 - 07:22:37 PST

Hi, I'm an 8th grade student interested in trying this experiment. I am
not sure of the pattern that is to be on the pattern disk. Is it only
that half the disk is white and the other is black? Am i supposed to
have lines in it like the picture on your web site shows?
Thank you,

This archive was generated by hypermail 2.1.3 : Mon Apr 24 2006 - 11:34:47 PDT