David Gallo: Underwater astonishments

14 Apr

David Gallo shows jaw-dropping footage of amazing sea creatures, including a color-shifting cuttlefish, a perfectly camouflaged octopus, and a Times Square’s worth of neon light displays from fish who live in the blackest depths of the ocean. This short talk celebrates the pioneering work of ocean explorers like Edith Widder and Roger Hanlon.

Topher White: What can save the rainforest? Your used cell phone

13 Apr

The sounds of the rainforest include: the chirps of birds, the buzz of cicadas, the banter of gibbons. But in the background is the almost-always present sound of a chainsaw, from illegal loggers. Engineer Topher White shares a simple, scalable way to stop this brutal deforestation — that starts with your old cell phone.

Fei-Fei Li: How we’re teaching computers to understand pictures

12 Apr

When a very young child looks at a picture, she can identify simple elements: “cat,” “book,” “chair.” Now, computers are getting smart enough to do that too. What’s next? In a thrilling talk, computer vision expert Fei-Fei Li describes the state of the art — including the database of 15 million photos her team built to “teach” a computer to understand pictures — and the key insights yet to come.

Fred Jansen: How to land on a comet

11 Apr

As manager of the Rosetta mission, Fred Jansen was responsible for the successful 2014 landing of a probe on the comet known as 67P/Churyumov-Gerasimenko. In this fascinating and funny talk, Jansen reveals some of the intricate calculations that went into landing the Philae probe on a comet 500 million kilometers from Earth — and shares some incredible photographs taken along the way.

Laura Boushnak: For these women, reading is a daring act

8 Apr

In some parts of the world, half of the women lack basic reading and writing skills. The reasons vary, but in many cases, literacy isn’t valued by fathers, husbands, even mothers. Photographer and TED Fellow Laura Boushnak traveled to countries including Yemen, Egypt and Tunisia to highlight brave women — schoolgirls, political activists, 60-year-old moms — who are fighting the statistics.

Malcolm Gladwell: The unheard story of David and Goliath

8 Apr

It’s a classic underdog tale: David, a young shepherd armed only with a sling, beats Goliath, the mighty warrior. The story has transcended its biblical origins to become a common shorthand for unlikely victory. But, asks Malcolm Gladwell, is that really what the David and Goliath story is about?

Andy Yen: Think your email’s private? Think again

7 Apr

Sending an email message is like sending a postcard, says scientist Andy Yen in this thought-provoking talk: Anyone can read it. Yet encryption, the technology that protects the privacy of email communication, does exist. It’s just that until now it has been difficult to install and a hassle to use. Showing a demo of an email program he designed with colleagues at CERN, Yen argues that encryption can be made simple to the point of becoming the default option, providing true email privacy to all.

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