Conference in Honour of the 90~(th) Birthday of Freeman Dyson

摘要

In an episode of the popular science fiction series Star Trek: The Next Generation, the crew of the USS Enterprise-D happened upon a full Dyson sphere when its gravitational fluctuations brought them to a stop. After some analysis of the sphere, Lieutenant Commander Data informed that the inside surface area of the sphere was equal to “250 million class-M worlds”.