
這本書主要在描寫跟地心引力有關係的常識及相關的實驗,適合11歲以上兒童閱讀,或是做為自然老師的補充教材。Salvatore Tocci is a science writer who lives in East Hampton, New york, with his wife, Patti. He was a high school biology and chemistry teacher for almost thirty years. As a teacher, he always encouraged his students to do experiments to learn about science. When he is not writing, he and his wife spend much of their time sailing their boat, the Royal T, on which they have a compass to direct them safely across the sea. |