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
The Taiga forest, on the edge of the Arctic, is a silent world of stunted conifers. The trees may be small but filming from the air reveals its true scale. A third of all trees on Earth grow here and during the short summer they produce enough oxygen to change the atmosphere.
Issues of genetics and DNA are constantly cropping up in the news from food production and health, to legal cases and ethics. We hear about DNA in movies like Jurassic Park and X-men, we learn bits and pieces about it from TV shows like Dexter and and CSI, but what exactly is DNA, and how does it work?
India is a vast land of seasonal extremes. Monsoon rains flood the land and make it green but once they are gone, heat and drought builds. It is a challenge for the animals but it also fosters an amazing variety of landscapes filled with diverse life. From semi-aquatic rhinos to desert lions, India's dynamic lands are full of surprises. It also attracts spectacular visitors from afar like the huge flocks of demoiselle cranes.
Attenborough describes the course the Amazon, starting high up in the Andes of Peru, whose streams flow into the great river. Young rivers are by nature vigorous and dangerous: they flow fast and form rapids, thick with mud and sediment.