At the Academic Palace, on the rear mountain, stood the experiment building.
Behind the attic, on the flat ground, a huge glass greenhouse had been erected. Within it, several small compartments were partitioned, each tightly sealed and fitted with glass windows, resembling a gigantic, segmented, constant-temperature cultivation box.
Li Ang, wearing a mask, stood inside one such cultivation chamber. He was dressed in a white coat sewn by Chai Chai, his expression serious as he surveyed the greenhouse for any oversights.
On the walls of the greenhouse hung a simple mercury thermometer he had made, and on the floor were Heating Talismans he had written himself, creating a constant-temperature workspace. The room had been thoroughly sterilized. Experimental equipment such as slant culture bottles, shaking flasks, seed jars, propagation jars, and fermentation jars had been moved in through an isolation buffer chamber and a sterile corridor door.
