friday night, i watched the last 15 minutes of the "mythbusters" show where they were attempting to prove/disprove the myth of being able to create homemade diamonds. they disproved all "recipes," with the exception of creating industrial grade diamonds with a HUGE explosion of compressing graphite. here's their explosive: (don't attempt at home)
http://dsc.discovery.com/videos/mythbus ... speed.html
anyway, check these guys out:
http://www.youtube.com/watch?v=bWhtkkOYoxo