肯尼亚清真寺阿訇否认催生激进主义 The Riyadh Majengo Mosque on the outskirts of Nairobi has been accused of being a hub of radicalization, for youth turning to the Somali militant group al-Shabab. But the imam of the mosque said he and...
公共机构借力社媒软件 随之也有问题 Social media are changing the ways that police departments and other public agencies do business. New media are helping monitor police and keeping the traffic moving on congested highways. But they ar...
3D打印制作标志性跑车的复制品 Cars with parts made by 3D printers are already on the road, but engineers are still learning about this new technology. While testing the possibility of printing an entire car, researchers at the U.S. Depart...
