who were the greatest scientist/poets?
My votes go to Oppenheimer, who read the Bhagavad Gita in its original Sanskrit, and opened the Atomic Age with deep poetic symbolism (Trinity from John Dunne's Batter my heart, three-person'd God, for example.)
and
Omar Khayyam who defined the Persian calendar for a millennium and linked algebra and geometry together in fundamental ways, while writing enough quatrains to form the Rubáiyát.
Very open if others have suggestions!