05/04/2020 | 49m 57s | Video has closed captioning.
Innovations in energy have revolutionized transportation over time from literal horsepower for horse drawn carriages to modern combustion engines, electric vehicles, and rockets. Transportation changes societies and our sense of place changes along with it. Machines help us travel over land and across the sky, but they require an enormous amount of energy.
Problems Playing Video? | Closed Captioning