The fifth episode of Neil deGrasse Tyson’s Cosmos focuses primarily on light. At the beginning of the episode discussing the invention of both the pinhole camera and optics (which lead to the first telescope). This is also the first episode in which the scientific principle is brought up in any way. As the episode progresses Tyson delves more into the history and progression of early theories of light and some of the implications these early theories had on the scientific community. The people who created the theories (Isaac Newton, William Herschel, and Joseph von Fraunhofer) also get a bit more screentime with several of their other discoveries getting highlighted.
Towards the end of the episode, Tyson discusses a bit of quantum theory mainly focusing on electrons and atomic orbitals. While some parts of this episode get a bit heavy on how technical it is I would still recommend anyone to watch this if they would like a fundamental understanding of how the scientific discoveries on light were made.
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