Every week my column gets printed on paper. Sometimes I use paper to dry my paws. Or clean up after I use the litterbox. I asked my friend Xiuyu Wang who invented paper – and why. He ’s at Washington ...

From school notebooks and storybooks to newspapers and artwork, paper is a silent hero of everyday life. But have you ever stopped to think where paper actually came from? Long before printers and ...

This is the second in a series of science articles themed around the Winter Olympics, scheduled for Feb. 4-20 in Beijing. China is a country that includes huge urban areas with complex industries as ...