THIS EDITION IS INTENDED FOR USE IN SCHOOLS AND LIBRARIES ONLY. Looks at the world before the telescope was invented, and explores how it has changed our world and our perceptions of the world.

שם הספר
The Steam Engine (Inventions That Shaped the World)
Extraordinary Debates (F. W. Prep)
Extraordinary Research Projects (F. W. Prep)
Extraordinary Essays (F. W. Prep)