The top ten inventions that changed the world

Some inventions, such as man mastering flight, have changed our world forever. This spectacular book takes a look at the top inventions of all time. Readers will be inspired by the fact that these monumental inventions often take root from a basic goal; to make life a little bit easier on all of us. Inventions include the plane, steam train, radio, camera, telephone, printing press, microchip, and AK-47.