A man visits the quantum science exhibition in Vancouver, Canada, Jan. 19, 2017. The exhibition was part of a year-long program celebrating Canada's innovation and science development in the past 150 years. (Xinhua/Liang Sen)
RIGHT BG
A man visits the quantum science exhibition in Vancouver, Canada, Jan. 19, 2017. The exhibition was part of a year-long program celebrating Canada's innovation and science development in the past 150 years. (Xinhua/Liang Sen)