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.
Answer: Michelangelo was the first Western artist whose biography was published while he was alive. In fact, two biographies were published during his lifetime.
Explanation:
Answer:Clay
Explanation: clay by nature is not as strong as the others mentioned in the alternative and it can only be worked on when soft and form desired shape when dry because it is malleable making it an unlikely carving tool