Results come from Exumo's own index. Data from YouTube; Exumo is not affiliated with YouTube.

1. 3:58

   Why is 'x' the unknown? | Terry Moore

   TED · Jun 6, 2012 · 733.6K views

2. 5:00

   Carl Schoonover: How to look inside the brain

   TED · May 17, 2012 · 78K views

3. 4:27

   Jean-Baptiste Michel: The mathematics of history

   TED · May 15, 2012 · 94.8K views

4. 4:08

   Renny Gleeson: 404, the story of a page not found

   TED · May 11, 2012 · 235.2K views

5. 4:00

   Lucy McRae: How can technology transform the human body?

   TED · Apr 6, 2012 · 140K views

6. 4:01

   A Taste of TED2012

   TED · Mar 31, 2012 · 110K views

7. 3:33

   Yup, I built a nuclear fusion reactor | Taylor Wilson

   TED · Mar 22, 2012 · 730.8K views

8. 3:50

   A TED speaker's worst nightmare | Colin Robertson

   TED · Mar 9, 2012 · 969.7K views

9. 3:38

   Sonaar Luthra: Meet the Water Canary

   TED · Jan 16, 2012 · 24.5K views

10. 4:45

    Monika Bulaj: The hidden light of Afghanistan

    TED · Dec 12, 2011 · 34.2K views

11. 3:51

    Damon Horowitz: Philosophy in prison

    TED · Nov 28, 2011 · 174K views

12. 3:52

    The technology of storytelling | Joe Sabia

    TED · Nov 23, 2011 · 161.8K views

13. 4:20

    Nathalie Miebach: Art made of storms

    TED · Oct 21, 2011 · 64.5K views

14. 4:17

    Amy Lockwood: Selling condoms in the Congo

    TED · Sep 21, 2011 · 59.6K views

15. 4:31

    Shake up your story | Raghava KK

    TED · Sep 9, 2011 · 71.2K views

16. 4:47

    The demise of guys? | Philip Zimbardo

    TED · Aug 5, 2011 · 544.9K views

17. 4:14

    Nina Tandon: Caring for engineered tissue

    TED · Jul 9, 2011 · 38.1K views

18. 3:28

    Try something new for 30 days | Matt Cutts

    TED · Jul 1, 2011 · 1.3M views

19. 3:34

    Jok Church: A circle of caring

    TED · Jun 22, 2011 · 32.9K views

20. 4:12

    Camille Seaman: Haunting photos of polar ice

    TED · Jun 16, 2011 · 69.5K views