Yosemite Valley is a land forged in wildfire and sculpted by water, and the delicate balance of these two elements is essential to the creatures and trees that call this land their home. But with climates changing and temperatures rising, the Sierras are under siege. Water is scarcer and the threat of fire is more common. Join scientists and adventurers as they trudge through mountains of snow, climb trees as tall as buildings and soar high in the air to spy just how these global changes are affecting one of America’s greatest wildernesses.
The Vikings were among the fiercest warriors of all time. Yet only a select few carried the ultimate weapon of their era: the feared Ulfberht sword. Fashioned using a process that would remain unknown to the Vikings’ rivals for centuries, the Ulfberht was a revolutionary high-tech tool as well as a work of art. Considered one of the greatest swords ever made, it remains a fearsome weapon more than a millennium after it last saw battle. But how did Viking sword makers design and build the Ulfberht, and what was its role in history? Now, NOVA uses cutting-edge science and old-fashioned detective work to reconstruct the Ulfberht and finally unravel the mystery of the Viking sword.
Baiae, near the modern city of Naples, Italy, was an escape for ancient Rome’s powerful elite, the Las Vegas of its day. Now, follow archaeologists who are mapping underwater ruins and piecing together what life was like in this playground for the rich.
The huge earthquake and tsunami that struck northeastern Japan six years ago swept vast amounts of debris across the Pacific. Some objects reached the shore of Oregon, including the crossbeams from the gates of a Shinto shrine. Thanks to the efforts of people living there, those precious artifacts have made the long journey home. The film tells the story of how this homecoming formed bonds of friendships between people living an ocean apart.
Colditz Castle, a notorious prisoner of war camp in Nazi Germany, was supposed to be escape-proof. But in World War II, a group of British officers dreamt up an escape plan: in a secret attic workshop, they constructed a two-man glider out of bed sheets and floorboards. The plan was to fly to freedom from the roof of the castle, but the war ended before they could put it to the test. Now a team of aero engineers and carpenters rebuilds the glider in the same attic using the same materials and use a bathtub full of concrete to catapult the glider off the roof to find out if the legendary glider plan would have succeeded.
Investigate the rise of spillover viruses like Zika, Ebola and Nipah that can make the leap from animals to humans. Find out how human behaviors spread diseases and what science can do to anticipate and prevent epidemics around the world.
More than 30 animatronic spy cameras disguised as animals secretly record animal behavior in the wild. These “spy creatures” reveal that animals show emotions and behavior similar to humans – a capacity to love, grieve, deceive, cooperate and invent.
Meet the Spies
This “making of” episode takes us through the evolution of Spy Creatures from the original boulder cam to the penguin cams that inspired the spycams in this series.
Dr. Lucy Worsley, Chief Curator at Historic Royal Palaces, snuggles up with Britain’s monarchs to uncover the fascinating secrets of the royal bedchamber. From Hampton Court to Hever Castle to the great English country manors, Worsley shows the opulence of Royal State bedrooms and explains how these private spaces were once very public hubs of English politics and policy. It was in these rooms that royal marriage ceremonies were held, royal births were observed by crowds eager to verify the baby’s sex. Even the process of creating royal babies took place in a semi-public context, Worsley says, because everyone had a stake in its outcome.
Trains are essential for moving freight and people throughout the world, but they are far from accident-free. Follow investigators as they probe the wreckage of infamous accidents and watch safety experts test the latest crash prevention designs.
The ancient art of paper folding is sparking scientific advances, affecting drug development and future NASA space missions. Discover how the art of origami is reshaping the world around us as scientists uncover the power of folding.