Safari Live - Day 42 | National Geographic

Hi everyone! Welcome to our homeroom livestream. Very excited about the conversation we’re about to have. But I will start with my standard announcements, reminding everyone that we at Khan Academy we’re a 501c3. We’re a not-for-profit; we can only exist …

So we’ve already talked about multiple types of solids. We’ve talked about ionic solids, that’s formed when you have ions that are attracted to each other, and they form these lattice structures. We have seen metallic solids, and we’ve seen thought about…

What’s up you guys? It’s Graham here. So today we gotta have the talk. I understand this might be a bit uncomfortable for somebody to listen to, and it’s not easy for me to talk so openly about this, but everyone needs to learn about this at some point be…

Can our universe destroy itself? Everything in the universe strives to be in the most stable state possible. For example, a ball on top of a hill is in an unstable state. When pushed, it will roll downhill, lose its potential energy, and end up in a stabl…

I’m so glad that some of our conversations are on meditation. I have a number of questions that I get on meditation. Uh, what type? There are just many, many, many types of meditation, and I suppose they’re probably almost all good. I’ve only experienced…

My name is Ignacio Stone. I’m married to Edward Hale Stone. We call him Chip. I’m Edward Hale Stone, master of systems, hunter. I’m a subsistence gatherer, fisherman. I’m married to Agnes, and I have five daughters. I tried to get them all involved in eve…