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 13:31 minutes · Filmed Jun 2013 · Posted Nov 2013 · TEDGlobal 2013 Our brain is puzzling. It is curiously large given the size of our bodies, and uses a tremendous amount of energy for its weight. No other animal's brain compares. Neuroscientist Suzana Herculano-Houzel put on her detective cap to lead us through these mysteries, starting with a big question: Exactly how many cells are in our brains? (No one had ever counted -- until she did.) | |
Playlist of the week Everyone wants to be happy. But how does one go about it? Psychologists, journalists and monks suggest some answers that may surprise you. Watch » Total run time 2:37:01 | |
More from TED.com  Alexa Meade selects a topic and then paints it. Literally. She covers everything in a scene -- people, chairs, food, you name it -- in a mask of paint that reflects on what's below. In this eye-opening talk, Meade shows some of her delightful work, and shares a new project involving a model, paint and a bathtub full of milk. Watch »  In this lovely, personal talk about the magic of books, Lisa Bu tells the story of how thoughtful reading helped her create a new life for herself in the United States. She shares her unique approach to reading for better meaning and understanding -- try it yourself! Watch » |  Humankind has been looking for the giant squid (Architeuthis) since we first started peering underwater. But the elusive deep-sea predator could never be caught on film. Oceanographer and inventor Edith Widder shares the key insight -- and the teamwork -- that helped to capture the squid on film for the first time. And see their reactions caught on camera. Watch »  You don't need to plan an exotic trip to find creative inspiration. Just look up, says Gavin Pretor-Pinney, founder of the Cloud Appreciation Society. As he shares charming photos of nature's finest aerial architecture, Pretor-Pinney calls for us all to take a step off the digital treadmill, lie back and admire the beauty in the sky above. Watch » | | |
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Quote of the Week | “ | My wish is that we design the future of learning. We don't want to be spare parts for a great human computer." |
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Taking a road trip? Download the TED Talks audio podcast -- edited for listening, they're great to take along. Get the TED Talks audio podcast » | |
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