Rip 'n all -- Yes, that's very nifty. (I think maybe we talked about a similar trick, in Sept '97 when Mike Scoles wrote: >http://pw2.netcom.com/~sleight/interactivemagic.html.. oh, just checked,new location -- click the rabbit at http://trendy.org/magic/interactivemagic.html It suggests an interesting paradigm, but I can't quite think what it is. Sometime student of mine Paul Forestell went on to Hawaii (years ago) asked dolphins if they could remember what wasn't there among a group of things chucked simultaneously in their tank (beachball, surfboard, etc. - 7 things, I think). Somewhere between the one-time magic trick and the many, many trial dolphin trick, there must be a memory or human cognition preparation. Probably well-known to some tipsters, but not me. Studies about remembering what's not there, you mnemno-experts? -David RICHARD PISACRETA wrote: > You have to try this!!! It is cool!!! > Then explain how it works. > > Rip > > >http://www3.mcps.k12.md.us/users/rsfay/magic/index.html > > > =========================================================== David G. Likely, Department of Psychology, University of New Brunswick Fredericton, N. B., E3B 5A3 Canada History of Psychology: http://www.unb.ca/web/psychology/likely/psyc4053.htm ===========================================================