Inventions: Discover Some of the Amazing Technology of the Past, with More Than 20 Fun and Fascinating Projects

- A bumper collection of activities and projects, bringing the past into the present with hours of creative activity.- Explores the ancient ideas and technology behind many of the worlds most advanced civilizations.- Brings the past alive with 20More- A bumper collection of activities and projects, bringing the past into the present with hours of creative activity.- Explores the ancient ideas and technology behind many of the worlds most advanced civilizations.- Brings the past alive with 20 projects.- Make a Viking longship and a Stone Age bow drill, and see how they work. Make Roman armor and a Japanese Samurai helmet, and see what it was like to wear them.