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 HC found out and announced today, commonly called the Genius Grands. 7 of the 21 follows are math ? of scientists.  And the other, is a science's story. My name is PL, and I'm a historian of 15-16 century Europe of the historic science and technology and cultural history.So I'm interested in the processes that occur when enfer structure projects are undertaken. What I'm very interested in is the relationship between practitioners¹ who understand engineering and have trained unside tubes say we pair bridges or we pair acquoducts, and learning people-people with university training.So you have this communication between practitioners and learning people.And I argue that that's important for the development of the new scientists. People call the scientific revolution. When I once in Taiwai investigating the nature world. The math is shifted to inperfore methods to major math and the mathematical announces. So engineering became part of learning culture at this end, and that broad contact is important for the development for the new method ?.