Energy from space
A Dyson sphere is a hypothetical megastructure described in 1960 by the American-British physicist and mathematician Freeman Dyson (cf issue 6). It is an empty spherical structure built around a star to capture its radiated energy in all directions. Nothing escapes. I will not go into details but it is clear, from numerous perspective, that this is unfeasible. But why don’t we simplify the problem? Instead of a continuous sphere around the sun, imagine a constellation of satellites around the earth....