Dr Helen Czerski peers into the heart of the storm to find out how advances in technology are giving new insight into tornadoes - the fastest winds on the planet. From the breathtaking footage that capture the extreme weather events that produce them, to the latest experiments investigating their incredible destructive power, Helen discovers how understanding the subtle changes deep within the storm are improving predictions of when and where these devastating beasts will strike.
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Dr Helen Czerski looks at the anatomy of an avalanche. From shocking eyewitness footage from within an avalanche, to detailed CT scans showing the microscopic changes that cause them, we can now capture exactly what happens as snow transforms into a deadly and unpredictable danger.
2016 • Nature
Dr Helen Czerski examines the hottest natural phenomena on the planet - lightning. Bolts of lightning five times hotter than the surface of the sun strike our planet over 3 million times every day - and yet we still know little about this deadly force of nature. Now, specialist photography is revealing how lightning travels through the air, high-speed cameras are unlocking the secrets of upward lightning that's triggered by our urban landscapes, and scientific expeditions are capturing rare images of intense electrical discharges over 80 kilometres wide.
2016 • Nature
Helen looks at the latest scientific insight into the aurora - dancing lights in the night sky that have fascinated cultures throughout our history. From the networks of cameras now capturing its vast scale, to novel experiments that probe the threat it poses to modern technology, Helen reveals the dramatic transformation in our understanding of the aurora, and the many mysteries that remain to be solved.
2016 • Nature
Dr Helen Czerski peers into the heart of the storm to find out how advances in technology are giving new insight into tornadoes - the fastest winds on the planet. From the breathtaking footage that capture the extreme weather events that produce them, to the latest experiments investigating their incredible destructive power, Helen discovers how understanding the subtle changes deep within the storm are improving predictions of when and where these devastating beasts will strike.
2016 • Nature
In Part One of the miniseries "The Alps", enjoy the Alps in spring and summertime as newborn animals grow up to face the coming brutal winter. (PBS Nature Season 39 Episode 7)
Left to their own devices, birds have reached almost all ends of the Earth - still, humans can do many things to help their feathered friends.
S1E10 • The Life of Birds • 1998 • Nature
Humans, octopi and pine trees alike are all made up of cells, tiny but sophisticated systems that keep life going. Cells are almost like tiny factories run by robots, with the nucleus, DNA, proteins, lipids, and vitamins and minerals all playing critical roles. George Zaidan and Charles Morton lay out the blueprint of a cell and explain how biochemistry binds all life together.
On the eastern coast of Africa lies a subtropical realm of staggering beauty and diversity--a mangrove forest where saltwater meets fresh and a variety of secretive forest dwellers work feverishly to survive. Take a thrilling journey into this rarest of ecosystems, one that few get to witness.
S1E1 • Waterworld Africa • 2017 • Nature
As the first animal to be domesticated, pigeons have a story to tell. A drama filled, steeped-in-history, amazing story. Although they’ve faded into the background of city life, pigeons have made an incredible contribution to human history. For centuries, we relied on them for everything from food, to vital communications, to entertainment to modern day brain science. They deserve more respect! The ones you see on city streets today are the descendants of domestic birds. Their gritty urban lives are spent trying to evade all manner of perils…and… stay one step ahead of starvation, a constant threat. To survive where they’re not wanted, pigeons rely on a combination of charity from a few and their own incredible smarts…. In a series of fascinating experiments and carefully placed cameras, we take you inside their perilous world; in the air, on the street and in the nest. One of the first things to notice is just how incredibly smart they are.
S54E07 • The Nature of Things • 2014 • Nature
How do you study an animal you can't even get close to? Camera traps and drones are revolutionizing wildlife biology by recording the secret lives of animals—from whales and tigers to elusive giant armadillos—all without disturbing them.