Safari Live - Day 42 | National Geographic

[voice from the audience] Hey! Hey. Where’s the Q&A? [Grey] Oh… right. I lost track of time. [confusedly] What… year is it? [retro video game sounds] How are you and Lady Grey doing during lockdown? We’re fine. Though we have become real little home…

We’re told this network diagram represents the different train routes between three cities. Each node is a city, and each directed arrow represents a direct bus route from city to city. So, for example, this arrow right over here, I guess, would represent…

Hmmm, okay computer. It’s a simple word, but if you think of it, this word has been radically redefined since being coined in the 1600s. At first, it actually referred to people—people who did calculations, were observed, or surveyed things. Then, it was …

What I want you to do is pause the video and think about what 27 minus one is, and then think about what 27 minus 10 is. Alright, you might have found it pretty straightforward, but I want to think about it in terms of place value. So let’s focus on 27.…

So Ray Dalio is back on YouTube and his most recent video is actually a really cool 10 minute explainer on whether we’re currently in a stock market bubble. Now Ray is obviously the founder of Bridgewater Associates, the most successful hedge fund the wor…

Hello and welcome to Ed Talks, where we at Khan Academy talk to folks who are influential in the field of education. I’m Kristen Deserver, the Chief Learning Officer here at Khan Academy, and I am happy today to welcome Ben Riley, who is with Deans for Im…