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Benjamin Franklin's contribution to the planetary model was the theory he developed in June of 1752. In stormy weather, complete with lightning, he flew a kite and this led him to believe that matter had positive and negative charges.
The idea that led to the atomic theory of matter, was John Dalton.
James Hanslow
continent drift
Benjamin Franklin
Benjamin Franklin.
Benjamin Frankin
Benjamin Franklin and John Adams
squat-thrust
squat-thrust
squat-thrust
He was a genius and was hardworking. He was wise.