Why did leonardo da vinci move from florence to milan?

He was dissatisfied with his life in florence so e moved to milan to study science, which he also had an interest in, almost as much as painting. 

Photojournalism adds emphasis and power. if some one told you that a bomb blew up the world trade center, you wouldn’t have believed them until you saw it on the tv or in the newspaper.

What i think is that it adds loudness for preachers/church choirs. it is also able to hold up a lot of weight without pillars. : )) idek tho