What is it?
TED ED video How do wind turbines work? by Rebecca J. Barthelmie and Sara C. Pryor (4.44 min)
Why should we watch it?
Every 24 hours, wind generates enough kinetic energy to produce roughly 35 times more electricity than humanity uses each day. This resource is totally renewed each day, unlike oil or coal. Is it possible to create a world entirely powered by wind? And if so, how do these turbines even work to accompish that? Find out in this video to see what the challenges are regarding the most efficient and inexpensive source of electricity.