Isaac Newton was a great physicist and mathematician. he made the basic rules of gravity.
Galileo Galilei was an italien physicist an inventer. he invented the telescope and used it to found four moons of jupiter.
Leonardo Da Vinci. most known for his famous painting the "Mona Lisa" but in reality he was a great inventor, scientist and architect. he drew many sketches of his own inventions, including a glider, a tank and a hot air balloon.
Albert Einstein was a great physicist. he found out how light worked, and found the connection between movement and time.