However Chunqi Jiang, a physicist at the University of Southern California, Los Angeles, and her colleagues have come up with a possible alternative: a dental plasma torch.
Jiang, the first Chinese Communist leader with a university degree, exhibits a charming worldliness and appreciation of other cultures that sit well with his bid to improve his country's global image.
However, Professors Lin Jiang and Marie Thursby from Georgia Tech and Justin Tan from York University discovered that there are some exceptions to this rule, and some incumbents do manage to be inventors during the stage of technological dirsruption.