I'd be interested. I saw a demo in a physics class of a magnet and an identical non-magnetic steel rod being dropped, seperately, through a 2 foot long piece of heavy wall copper tube held vertically. As expected, the steel ball fell right through to the floor in a second or less. The magnet... nope!. It took 30 seconds to make the drop. One of the most fascinating demonstrations of science I've ever seen. BTW, thanks for posting pho cooking instructions. Love the stuff. Also, something tells me that folks in this group might be interested in your solar collector ideas as well. Chris ----- Original Message ----- From: blahx3@xxxxxxxxxxx To: phoenixdiy@xxxxxxxxxxxxx Sent: Wednesday, September 24, 2008 4:51 PM Subject: [phoenixdiy] Re: Is the group dead? OK, so there will be at least two people interested. That's two more than usual for any of my public presentations. If y'all can find a venue and date/time let me know (I'm in Ahwatukee). TB *** *** *** *** *** *** *** *** *** *** *** Tho X. Bui Email Address: blahx3@xxxxxxxxxxx website (pardon the dust): http://thoxbui.com