Explorers mount expeditions on an unprecedented scale, from the mapping of the entire Earth above and below the seas, to the landings on the Moon, to voyages through the solar system and beyond.

Silicon plays a major role in the development of the plastics industries and computer technologies that dominate the age.

With the availability of affordable automobiles and passenger aircraft, the era experiences a tremendous increase in mobility.

The improvement of aircraft facilitates Admiral Richard Byrd’s mapping of the last great unexplored regions of the globe, Antarctica and the Arctic.