31 marzo 2015
Children love to build things. Often half the fun for them is building something and then knocking it down. But in a new study children had just as much fun learning how to keep their masterpieces upright — they learned a key elementary engineering principle.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XOKWr6eGIyU/150331121620.htm
