Sean Carroll: Distant Time and the Hint of a Multiverse
At TEDxCaltech, cosmologist Sean Carroll attacks -- in an entertaining and thought-provoking tour through the nature of time and the universe -- a deceptively simple question: Why does time exist at all? The potential answers point to a surprising view of the nature of the universe, and our place in it.
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Award-Winning Teen-Age Science in Action
In 2011 three young women swept the top prizes of the first Google Science Fair. At TEDxWomen Lauren Hodge, Shree Bose and Naomi Shah described their extraordinary projects - and their route to a passion for science.
Tierney Thys Swims with the Giant Sunfish
Marine biologist Tierney Thys asks us to step into the water to visit the world of the Mola mola, or giant ocean sunfish. Basking, eating jellyfish and getting massages, this behemoth offers clues to life in the open sea.
A Pep Talk from Kid President to You
We all need a little encouragement every now and then. This video is a short pep talk to help you get up an go when your go seems gone.
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.
AJ Jacobs: How Healthy Living Nearly Killed Me
For a full year, AJ Jacobs followed every piece of health advice he could -- from applying sunscreen by the shotglass to wearing a bicycle helmet while shopping. Onstage at TEDMED, he shares the surprising things he learned.