Wang Hongcheng was a bus driver from Harbin, a former soldier with ninth-grade educationMeaning that he was schooled until the age of 14 or 15 years old. The magazine stating this is from the US, "ninth-grade" in the US corresponds to the first year of High school and no scientific training. In 1983 he claimed that he invented a liquid that could transform a liter of regular water into a fuel by simply adding two or three drops of his liquid, and that this resulting fuel was as combustible as petrol. Hongcheng called it "the fifth greatest invention of China", in a reference to the four Great Inventions of China, and his invention became more popular, finally reaching on 28 January 1993 the front pages of a major national newspaper. In the winter of 1985, Wang showed this technique in Beijing, Hebei, Zhejiang and Shanghai.
