Science Buddies: "Ask an Expert"

I need to know how to build a small wave maker for my science fair project. can anyone refer a website, book, or any other soucre for me to research. thank you.

I did a Google search on "building water wave maker" and found this link:
http://www.blackmagic.com/ses/surf/pape ... oject.html

You should be able to find other examples with similar Google searches.