Expert Knowledge Trivia Quiz

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4. Confronting one’s sphere

In 1959, physicist Freeman Dyson described a concept that came to be known as a “Dyson Sphere”. A Dyson Sphere is:

A) The minimum volume needed to contain all living things
B) A personal vehicle for interstellar travel
C) The region of influence of an interstellar empire
D) A rigid hollow sphere completely enclosing a star

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When considering the long-term consequences of continually increasing energy consumption, Dyson foresaw that in the distant future humanity would require energy in amounts that now seem almost incalculably vast. He proposed a correspondingly vast solution: a shell with a radius of one earth orbit, completely enclosing the sun, which would capture all the sun’s energy for human use.

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