!! I'm so excited someone else likes TED talks! I used to try to show these in my classroom when I was student teaching but the kids weren't that into it. The first one you posted is still my favorite of all.
There was this really cool one I watched a year ago with this guy that shows you how to create a smart board at home. Don't know why you would need one but cool for classroom use.
I'm addicted to the TED talks! They are just long enough to get a real understanding of what they're talking about, yet short enough to not kick in my A.D.D. And the topics are so interesting! How could anyone NOT love them!?