Yahoo奇摩 網頁搜尋

  1. ... a Christmas tree. Bamboo stems filled with gunpowder that were burnt to create small explosions were once...

  2. ...scholar and biochemist Joseph Needham: The Compass[1] Gunpowder Papermaking [2] Printing These inventions...

  3. ...the four great inventions of ancient China: Paper, the compass, gunpowder , and printing. http://en.wikipedia.org/wiki/China The...