UltraTech LEEC species

[radtech497]

Magnetic refrigeration techniques are more than adequate for the task of cooling the exterior surfaces of a Dyson Bubble's statites. As described in this Wikipedia article, cooling materials to CMBR temperatures is almost trivial in comparison to temperatures reachable by RL technology. Given that all that is required are magnets, a suitable solid "refrigerant," and power, this seems achievable by any civilization capable of building Type III dysons (Type I are dyson swarms, Type II are dyson shells, and Type III are dyson bubbles).

Radtech497