第 2 集: Ruri 展望黃金前景並發現現金與科學價值的差異
2025年7月13日 播出
Nagi takes Ruri to a gold prospecting district. Gripped by gold fever, Ruri gains skill with her new rock hammer. But the stones she splits contain only pyrite, confirmed by streak test. A crystal with an unexpected shape prompts a discussion about the difference between cash value and scientific value. Next they pan for placer gold in a stream bed, finding better success after a heavy rain. Searching a pothole yields even more gold, including a huge nugget that Ruri would rather keep than sell. (Source: Wikipedia)