New evidence suggests humans arrived in North America far earlier than previously thought, and that they might have traveled paths now submerged.
A dog's sense of smell can do amazing things; Dogs can help humans sniff out all kinds of things that improve our lives, explosives, missing persons, illegal drugs; now the latest research is revealing that dogs can detect disease, even cancer.
A journey through the key events that have allowed people to better understand the world of microbe.
A journey through the key moments that enabled humanity to discover plastics.
Long-distance communication, moving stealthily through the dark without being detected, and observation from afar have all become commonplace; at any moment, one can know exactly where one is on the planet.
The understanding of energy enables people to send rockets into space; learning what exactly is energy and where it comes from.
Archaeological experiments reveal ancient Egyptians' techniques for building pyramids.
The story of the will of a great Mongol Khan, of two unyielding adversaries and a siege that changed world history.
Investigating links between a failed rebellion against an all-powerful emperor and the discovery of 4,000 terra cotta warriors buried in China.
Viet Minh forces fighting for independence in Indochina besiege French troops and score a decisive victory in 1954.
Distant ancestors were afraid of lightning and thought that it was sent by the gods; today, electricity is part of people's daily lives.