Safari Live - Day 42 | National Geographic

All right, I think we’re ready to start. Anyone who wants to—anyone else wants to join us for the talk with Scott Cook, founder of Intuit? So I’ll just start. You know, for everyone here at Khan Academy who doesn’t know both Scott and Cigna Cook are, you …

DRO, those thoughts out there, all thought out for sure. Yeah, they’re all thought out, they need working on now. There’s freezing outside; it’s good to clear the freezer of all the caribou we’ve got. How we put some more fish in. They’re gonna have to l…

The simple questions are the hardest ones to answer. What is a thing? Why do things happen? And why do they happen the way they do? Let’s try to approach this step-by-step. What are you made of? You are matter which is made of molecules which are made of…

[Music] [Music] First movie I ever saw was Jaws. What I saw was a man-eating shark. The fear turned into fascination. What I learned was it’s the world’s biggest lie. These animals aren’t what anyone thinks they are. They really are exquisite; some of the…

Ben Aaron: In the 1800s, as engineers searched for cost effective alternatives to horses and steam for powering public transport, wind, in the form of large kites, was seriously considered. But now, after two centuries of development, we still don’t have …

The largest things in the universe are black holes. In contrast to things like planets or stars, they have no physical size limit and can literally grow endlessly. Although, in reality, specific things need to happen to create different kinds of black hol…