My friend Ian has set the fascinating goal for himself of personally experiencing as much of the history of science and technology that he possibly can (http://grokproject.net/). He has started with the paleolithic era, and last week Tim and I met with him to help him learn how to make rope from plant fibers. We had a fun adventure, though there were a couple of disappointments as well.

He wrote about our adventures here (includes photos):
http://grokproject.net/2009/11/11/an-interesting-twist/