Safari Live - Day 368 | National Geographic

Humans don’t have needs, so that’s a deliberately provocative title. We do talk about things that humans need; we say humans need food, shelter, love. What we usually mean by a human need is something that humans require to stay alive or healthy. We say t…

The differentiable function f and its derivative f prime are graphed. So let’s see. We see the graph of y is equal to f of x here in blue, and then f prime we see in this brownish orangish color right over here. What is an appropriate calculus based justi…

We’re told the perimeter of the rectangle shown is 17x units. The area of the rectangle is 15x square units. Write an equation that represents the perimeter, and also write an equation that represents the area. So pause this video and see if you can writ…

With the rise of AI, the job market is shifting fast. Here are three things you can practice for free on Khan Academy to future-proof your job skills. Number one is critical thinking. While AI can handle vast amounts of data, in the end, it’s humans who …

No one can imagine anybody else playing that role but you. So what were you doing? What’s your secret? Come on! I love the whole concept of scientists who deal with, uh, insoluble, uh, problems. I love the story of a noted scientist who was trying to fin…

As emperor of Rome, he was the most powerful man on the planet. Yet, as opposed to many of his successors and predecessors, Marcus Aurelius aimed to live virtuously on a consistent basis. He followed a philosophical school called Stoicism. Part of Stoic p…