 Whether you're obsessed with bridges or haven't given them a second thought, this talk from structural engineer Ian Firth will inspire you to see them in new ways. In this mesmerizing tour of bridges old and new, he explores the potential for innovation and variety in this essential structure. Spectacular bridges, he says, unleash our creativity, while they reveal our very human desire to connect. Watch »  Multidisciplinary artist Paul Rucker is a collector of artifacts connected to the history of US slavery -- from branding irons and shackles to postcards depicting lynchings. In this mind-shifting talk, he shares how these objects carry history -- and how to take away their power now. "If we look at these objects and realize that they are part of our history, we can find a way to where they have no more power over us," Rucker says. (This talk contains graphic images.) Watch » |  Thousands of years ago, ancient Nubians drew pictures on tomb walls of a terrible disease that turned their eyelids inside out and made them blind. This disease, trachoma, is still a scourge in many parts of the world today -- but it's completely preventable, says Caroline Harper. Armed with data from a global mapping project, Harper's group, Sightsavers, has an audacious plan to wipe out this ancient disease, country by country. Watch »  There's a creeping sameness in many of our newest urban buildings and streetscapes, says architect Vishaan Chakrabarti. And this sameness -- the result of regulations, mass production, safety issues and cost considerations -- has blanketed our planet in a social and psychological sameness, too. In this visionary talk, Chakrabarti calls for a return to magnetic, lyrical cities that embody their local cultures, uniquely and gorgeously. Watch » |  Travis Reider was prescribed strong opiates after a gruesome injury. But when it came time to taper off them, he realized that the doctor who gave him these deeply addictive drugs had no idea how to help him stop taking them. As he recounts his agonizing journey of opiod withdrawal, he raises questions about how this failure of the system is driving the US opiod crisis. How did we get here, and what can we do about it? Watch »  Flight is about to get a lot more personal, says aviation entrepreneur Rodin Lyasoff. In this visionary talk, he imagines a new golden age of air travel in which small, autonomous air taxis allow us to bypass traffic jams and fundamentally transform how we get around our cities and towns. "In the past century, flight connected our planet," Lyasoff says. "In the next, it will reconnect our local communities." Watch » | |
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