Twenty-two 鈥� That鈥檚 the number of countries represented by the hundreds of calls and emails a team of engineering students at the 91吃瓜网 has received since they designed and delivered a bionic arm to a 6-year-old boy this past July. 鈥淲e receive emails daily asking for help,鈥� said Dominique Courbin, a senior studying to earn his degree…
