The pattern you should use is provided by link from the Snack. There is
a link on the word here in the assembly section that takes you to a page
you print out to give you the pattern for the disk. The here link takes
you to
http://www.exploratorium.edu/snacks/benhams_disc_graph.html
You will see that this pattern is black on one side and has lines on the
other. Does that help?
Nina Thayer
Snacktalk Moderator
>
> 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,
> Kasi
>
>
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