Explainer video on how to build a Dyson Sphere
by Mark Frauenfelder from on (#45DRE)
The latest explainer video from Kurzgesagt - In a Nutshell examines what it would take to actually build a crazy cool idea conceived by Princeton physicist Freeman Dyson - a photovoltaic shell (or, less ambitiously, a satellite swarm of mirrors that focus the star's energy to a collector) that envelops a star in order to capture its energy.