Many men had tried to invent a "horseless carriage." Karl Benz was only one of them. In 1885, he succeeded in building the first three-wheeled automobile. He didn't plan on starting his own automobile revolution. In fact, not many people bought his first car. But a century later the company he built is still in existence. And his contribution to self-powered vehicles has changed millions of lives.

A biography of the scientist who developed the periodic table.

Discusses the life and work of Louis Pasteur and his important contributions to science and health.