Beyond what we can touch, taste, smell, and hear, we experience the universe through light. But how did we come to discover light, and how did we learn light's true nature, as the fastest thing in the universe, an electromagnetic spectrum, a wave and particle capable of the most amazing things? Here is the history of light, according to physics.

Originally released by Knowledgemotion, 2017. Streaming video file encoded with permission for digital streaming by Infobase on February 21, 2020.