Steven examined the hologram for several more full seconds, then pointed to the radiators on the dark side of the strand. "Heat dispersal is, of course, a problem. The topopolis by its nature is a mostly closed system, and the artificial sun simply dumps more heat into the habitat. They’ve designed things to extract heat through an exchange system with the outer shell that actually generates electricity from the gradient—brilliant. Then it’s transferred to the cooling fins on the outer shell to be radiated into space. I imagine the heat signature would be significant."