Summary of videos Pt.1 The first video in conclusion was about the advencement of chinese technology, and the ingenuity and resourfulness of some of china's leaders. It talked of how teh warring states period was put to an end and how one emperor thought of aclever idea of clearing a area of rocks for irrigation. This was done by heating the rocks, tehn rapidly cooling them to crumble therocks, then carted the rock pieces away.