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Geoffrey West: The Surprising Math of Cities and Corporations

Physicist Geoffrey West has found that simple, mathematical laws govern the properties of cities -- that wealth, crime rate, walking speed and many other aspects of a city can be deduced from a single number: the city's population. In this mind-bending talk from TEDGlobal he shows how it works and how similar laws hold for organisms and corporations.


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Noel Bairey Merz: The Single Biggest Health Threat Women Face

urprising, but true: More women now die of heart disease than men, yet cardiovascular research has long focused on men. Pioneering doctor C. Noel Bairey Merz shares what we know and don't know about women's heart health -- including the remarkably different symptoms women present during a heart attack (and why they're often missed).

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Seth Shostak: ET is (Probably) Out There -- Get Ready

Dr. Seth Shostak participates in the search for extraterrestrial life at the SETI Institute. He believes ET is out there, and there is a good chance we will discover him soon.

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Brene Brown: Listening to Shame

Shame is an unspoken epidemic, the secret behind many forms of broken behavior. Brene Brown, whose earlier talk on vulnerability became a viral hit, explores what can happen when people confront their shame head-on. Her own humor, humanity and vulnerability shine through every word.

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Jane Fonda: Life's Third Act

Within this generation, an extra 30 years have been added to our life expectancy -- and these years aren't just a footnote or a pathology. At TEDxWomen, Jane Fonda asks how we can think about this new phase of our lives.

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Steve Jobs' 2005 Stanford Commencement Address

Drawing from some of the most pivotal points in his life, Steve Jobs, chief executive officer and co-founder of Apple Computer and of Pixar Animation Studios, urged graduates to pursue their dreams and see the opportunities in life's setbacks -- including death itself -- at the university's 114th Commencement on June 12, 2005.

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