Level 4: Inventions that Changed the World

Original / American English (Available April 2008)Inventors are special people. They see everyday objects and imagine something better. They solve old problems with new ideas. Their inventions can help people or destroy them, but only the greatest ideas will change the world. This book will tell you about many of the most interesting and important inventions, from 2,500 years ago to the present day.

Engleza originala / americana (disponibila in aprilie 2008) Inventatorii sunt persoane speciale. Ei vad obiecte cotidiene si isi imagineaza ceva mai bun.