Hi, thanks to both of you for bringing this to my attention. I don't believe my account was dead, as my last comment received a reply. It may have happened bec

Hi, thanks to both of you for bringing this to my attention. I don't believe my account was dead, as my last comment received a reply. It may have happened because initially when I edited the comment for a typo, it displayed duplicate comments after I hit update. So naturally, afterward I deleted one of them. My guess is I got caught by some spam filter or something. For what it's worth, my original comment was just pointing people to Matthias Wandel's site: http://www.sentex.net/~mwandel/ http://www.sentex.net/~mwandel/ where he actually has lots of cool projects. In particular I like the marble machines and his demo on how combination locks work.