In this vlog style film, Sir Isaac Newton explains how he discovered gravity when an apple fell from a tree and (as legend has it) hit him on the head. He outlines how he used scientific method and process to think about gravity; questioning why things fall straight down, not sideways or upwards.

Originally released by BBC Worldwide Learning, 2020. Streaming video file encoded with permission for digital streaming by Infobase on October 27, 2020.

Sir Isaac Newton (4:20); .