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)
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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)
