Indeed! Those HTREs in the lot were prototypes for this particular engine. The parking lot is for the Experimental Breeder Reactor I, the first reactor in the w

Indeed! Those HTREs in the lot were prototypes for this particular engine. The parking lot is for the Experimental Breeder Reactor I, the first reactor in the world to make electricity. It was cooled with sodium-potassium eutectic liquid metal. Really amazing museum now.