What does quantum mechanics tell us about our world -- or are there many worlds due to probability waves? How does the general theory of relativity mesh with quantum mechanics? If you've wished you understood quantum mechanics (or at least grasped the basics) physicist Brian Greene can help!
2015 • Physics
You may think you know who wrote the Declaration of Independence and what it says -- but do you really? Political theorist Danielle Allen looks at the document's origin and originators to give us a picture of the men and the moment in time that shaped the United States of today.
2015 • People
It is hard to imagine a sky without an airplane in it. But David McCullough takes us back to the first days of aviation. We learn about the Wright Brothers, not only through their achievements, but by discovering who they were as people and the early family influences that shaped their characters.
2015 • People
How has Capitalism affected the world? Raj Sisodia, economic analyst, takes us back to pre-Industrial Revolution to show how our standard of living has improved. But now , he feels, it is time for another kind of capitalism - conscious capitalism - based on a value system deeper than profits.
2015 • Economics
Paul Saffo looks at the development of the US economy through the 20th and into the 21st century. What are the trends that have shaped the economy? How are innovations in technology and communications making the 21st century an entirely different landscape for producers and consumers?
2015 • Economics
In the 21st century devices create more data than humans do. Rick Smolan, author of The Human Face of Big Data, shows the positive force of the collection of data in worldwide examples of the uses of medical data, personal data and business data to enrich people's lives.
2015 • Technology
What is it that makes things alive? What if we made robots that could sustain themselves? What if they could mine metals or recycle old robots, reprogram and remake themselves? There's nothing there we would traditional call alive, but they would have at least have the essence of this perpetual rube Goldberg machine.
High above the skies of Israel, an avian migration of staggering proportions attracts birdwatchers from all over the world. From gliding birds like the short-toed eagle to waders like red-necked phalaropes, here's your chance to track one of the most important stops on the bird migration route--no binoculars needed.
David discovers the plants that have evolved to shed their dependency on water enabling them to survive in the driest environments. The story begins at midnight in midsummer as David steps into the Princess of Wales Conservatory to witness the extraordinary nocturnal blooming of a cactus. The Queen of the Night, with its giant flowers, is the centre piece of a stunning symphony of cacti blooms that burst open in the desert (and at Kew) at night. In a mesmerizing 3D slow motion sequence, we discover the extraordinary connections between cacti and their natural ...