>Do you know of any museums of science centers that have hands-on >demonstrations and exhibits where the data from patron >interaction is recorded for each exhibit? The Chicago Museum of Science and Industry has had several of such exhibits, including one that showed running totals of responses to visitors. I am not sure if one of the recent exhibits at the NYC American Natural History Museum had a similar program. Perhaps in their environmental interactive exhibit. You might contact Jeff Jones there. I think the Franklin Museum in Philadelphia has also done such exhibits. If you develop such an exhibit, it would be interesting to hear about it. Martha A. Mills, 71167,[log in to unmask]