为了提炼黄金，他煮沸了5000升尿液，意外获得了造福人类的新元素

Group 1 - Gold has been a highly valued metal throughout history, serving as currency and now being crafted into various jewelry items [1] - The desire for gold has remained unchanged, with historical attempts to create gold, such as the 17th-century German merchant Brand's experiment [2] - The concept of the "Philosopher's Stone" has been a significant part of alchemical lore, believed to grant immortality and wealth [4][9] Group 2 - Alchemy in ancient China was primarily focused on creating elixirs for immortality, often requiring state resources for large-scale operations [4][6] - Historical figures like Qin Shi Huang pursued immortality, leading to quests for elixirs that ultimately proved futile [6][8] - The knowledge of alchemy spread to the West via the Silk Road, where it evolved into a craft aimed at wealth accumulation [9][10] Group 3 - Brand's fascination with alchemy led him to experiment with urine, believing it might contain gold, resulting in the discovery of phosphorus [12][15] - Phosphorus was initially used in match production and later in fertilizers, highlighting its significance in chemical science [17] - The historical pursuit of alchemy, despite its failures, inspired future scientific discoveries and emphasized the natural processes behind material formation [19]