Safari Live - Day 337 | National Geographic

Part of this video was sponsored by LastPass. Stick around to the end for a word from our sponsor. Are negative ions good for you? Normally, I’d dismiss such a question out of hand. In fact, that’s exactly what I did when a friend brought it up about a m…

I’d like to start by telling you about this place. This is the west coast of Vancouver Island in British Columbia, Canada. I was lucky enough to first visit this place back in 2011, and whilst I was there, I fell in love with this animal. She is a female …

Foreign Hi everyone, welcome to our homeroom live stream. Uh, Sal here from Khan Academy. I do have one announcement. I think we’ve already made this on social media and email, but just to make sure everyone’s on the same page: today was supposed to be t…

As a teacher thinking about using a tool inside or outside of your classroom, the first natural question is: well, does that tool work? That’s also very important to us here at Khan Academy, with our mission. We don’t want just people to use it; we want t…

Look, I’m an optimist, you know. I said, there are storm clouds; they’re big storm clouds. It’s a hurricane. Right now, it’s kind of sunny; things are doing fine. You know, everyone thinks that the Fed can handle this. That hurricane is right out there, d…

One of the core ideas of “Capital in the 21st Century” is comparing the after-tax return on capital, let me write that a little bit neater: return on capital, to economic growth. The contention is that if the return on capital ® is greater than economic g…