Did Da Vinci really was a true Renaissance Man?

This picture tells me a lot of things about Leonardo. This tells me that he was a greatest artist in the city of Florence at that time period and he started to build or sketch his own inventions, for example like this flying machine that Leonardo drew. This tells me that sketching inventions are one of his hobbies when he gets bored. :P


Sources:
http://www.mos.org/leonardo/bio.html