Is flipping a switch and lighting up a room normal or miraculous? It depends where—and when—you live. Crash Course World History covers historical uses of energy, current uses of energy, and the possible future uses of energy with an...

Join substitute host Stan Muller to learn about energy and humanity, featuring ideas put forth by Alfred Crosby in his book Children of the Sun. Historically, almost all of the energy that humans use has been directly or indirectly...