From StarTalk.

In this lively and insightful discussion, Neil deGrasse Tyson and Janna Levin explore Einstein’s groundbreaking paper on stimulated emission of radiation, the quantum phenomenon that ultimately led to the invention of the laser. They break down how photons interact with electrons in discrete energy levels, describe the strange but elegant mechanics of stimulated emission, and reflect on how this theoretical idea gave rise to a massive technological shift. Along the way, they also discuss Einstein’s philosophical discomfort with quantum randomness, injecting humor and historical context into the conversation.

From ‘Unpacking Einstein’s Greatest Papers, with Janna Levin’: https://youtu.be/APzYtiAuhOk?si=WFzBfPkoAdYsE9VI

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