Lu, a former professor of electrical engineering, recently stepped down from his job at a university in southwest China’s Sichuan province after hitting retirement age.But, in a break from normal practice, the 62-year-old’s long career at the school is far from over. In September, Lu will return to the faculty – this time as a research fellow.“The university hoped that I could continue working on some of the projects I haven’t finished, because I am one of the most experienced professors,” Lu...