5 mayo 2015
The onion, a humble root vegetable, is proving its strength outside the culinary world — in an artificial muscle created from onion cells. Unlike previous artificial muscles, this one can either expand or contract to bend in different directions depending on the driving voltage applied.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/g6_oqB8yIY4/150505121314.htm
