Melvin Berger

Takes a look at the daily lives, culture, and history of the Vikings, describing their home in Scandinavia, their kings and gods, their unique ships, and their conquests and explorations around the world; and includes a chronology and further resource list.

Provides unusual facts and information about technology, revealing that penicillin was invented by accident, Google answers over three billion questions per day, and the world's highest bridge is in China.

Explains how electricity is produced and transmitted, how to create electricity using an electrical wire and a magnet, how generators supply electricity for cities, and how electricity works in homes.