right|thumb|Diagram of the soviet radioisotopic thermoelectric generator "Beta-M". Black: Framework Blue: Outer radiation protection Yellow: Heat isolation Orange: Inner radiation protection (Tungsten) Red: Radionuclide heat source (Strontium-90) Pink: Thermoelectric unit Mounted above the assembly are fins for cooling, outlined in black.|360x360px
right|thumb|Diagram of the soviet radioisotopic thermoelectric generator "Beta-M".
Black: Framework Blue: Outer radiation protection Yellow: Heat isolation Orange: Inner radiation protection (Tungsten) Red: Radionuclide heat source (Strontium-90) Pink: Thermoelectric unit
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).