When Wu Chien Shiung was born in China 100 years ago, most girls did not attend school. But her parents gave her a name meaning "Courageous Hero" and encouraged her love of science. This engaging biog
One, two; yi, er. Side by side, two bicycles, Lunzi and Huangche, come out of the factory. Side by side, they watch the city of Beijing from their shop window. Then a young girl comes in and buys Huan
