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An economic structure dominated by heavy industry is the major factor behind severe air pollution in Hebei.

An Alexa integration is becoming the new app, with companies creating simple?voice-activated features to be available where their customers will be in the future, if not the present. Just like companies raced to build apps for the iPhone in 2008, companies are finding any way they can to add voice-activated features to their products today.

Amongst us book lovers, there’s almost a special code when you meet another reader — we talk about our favorite bookstores. This year’s celebration of Independent Bookstore Day on August 29 feels especially weighty, as a result, as so many independent booksellers around the country fight for their survival and wonder what their future may hold. No one goes into the book business expecting an easy path, and each year typically brings its share of surprises and challenges. This year, of course, is like none other in memory. We are all climbing the mountain ahead of us, but the outcome is uncertain.

An employee arranges snack products at a supermarket in Qingdao, Shandong province. [Photo by Yu Fangping/For China Daily]

An international team led by Hong Kong University of Science and Technology scientists has developed the world's first 3D artificial eye. Made of an array of nanowire light sensors, it replicates visual signal to reflect what the "eye" sees onto the computer screen when the sensors are connected to liquid-metal wires serving as nerves.