Posted by Matthias Trevarthan (24.158.202.12) on January 15, 2002 at 09:16:47:
In Reply to: Re: gravity wheels posted by Scott Ellis on January 14, 2002 at 14:27:50:
Right, but where do I find a steel ball? I think I can find the refrigerator magnets, but who carries steel balls? Are there specific steels that work best? Also, can magnets be linked end to end, or just front to back? Thanks.
Matthias