Safari Live - Day 42 | National Geographic

Thank you. Uh, I have the privilege of saying this is my sixth Startup School, uh, and, uh, the first time as a presenter. Today, I’m going to be sharing with you what I would have wanted to hear the first five times, uh, while I was sitting in your seat…

In previous videos, we have introduced the idea of energy as the capacity to do work, and we have talked about multiple types of energies. We’ve talked about kinetic energy, energy due to motion. We’ve talked about potential energy, which is energy by vir…

I’ve lived in this area my entire life. Right on the United States border. Just a half a mile across the river from Detroit. I’ve been a scuba diver and a diving instructor for over 25 years. I was a broke university student and it was the only place I co…

So in each of these pictures, we have a different scenario. We have someone standing at the edge of a cliff on Earth, and in this first scenario, they are launching a projectile up into the air. In this one, they’re just throwing it straight out. They’re …

When our vegetarian ancestors started eating meat around two million years ago, it wasn’t just because animals taste great; it was pure necessity. Climate change made many of the plants our ancestors relied on less available, and meat bridged that gap. Fr…

Hi everyone! Sal Khan here from Khan Academy. Welcome to our daily homeroom livestream. The whole goal of this is for all of us to stay connected during times of school closures. Depending on the day, this is a time for all of y’all to ask questions of my…