He aided in the discovery of the cog and gear system, which later added into the creation of machinery in the Industrial revolution.
His flying machines gave a new perspective to engineering.
It would be the Christian touch embedded on local Andean the art works. This was used by the Spaniards as a tool to influence Andean people and submit themselves to a Christian religion. The blend made a significant contribution to Andean culture.
Well it depends on how well you take care of it, they don't really have a certin amount of times that you can use it un'till you have to get rid of it
