Who-was-the-first-to-come-up-with-a-model-that-was-based-on-the-evidence-of-this-experiment-

Who-was-the-first-to-come-up-with-a-model-that-was-based-on-the-evidence-of-this-experiment-

This is a high school science question. Can’t figure it out. Detailed explanation is welcomed. Thank you.