尿素又叫碳酰胺,是由碳、氮、氧和氢组成的有机化合物,被应用在农业、商业、医学、纺织工业等领域。如果问尿素从哪里来?现在的人一定会回答:“人工合成!”但19世纪的科学家一定会说:“只有动物的尿中才会有尿素。”那么,是谁改变了这种现状?世界上第一粒人工合成的尿素是怎么来的呢? Urea, also known as carbamide, is an organic compound of carbon, nitrogen, oxygen and hydrogen used in agriculture, commerce, medicine, textile industry and other fields. If you ask where urea comes from? People will now answer: “Synthetic!” But in the nineteenth century scientists would say: “Only animals will have urea in their urine.” So who changed? This situation? The world's first synthetic urea is how come from?