Safari Live - Day 42 | National Geographic

I’m 30 feet down using a dining system I’d never tried before called snuba. I’m trying to keep my air hose from strangling me, praying I don’t run into a great white below the surface. I try to focus on finding a crayfish. I fight through the thick kelp u…

If you were to use energy as quickly as a hummingbird, you’d have to eat a fridge full of food or about 300 hamburgers every day in order to survive. They use energy so quickly as they fly, so, so fast. A lot of the flowers they feed on are really delicat…

A three story building is about 10 meters tall, six times bigger than you. In the opposite direction, six times smaller than you, you get things like a cute squirrel about 27 centimetres small. So the building is just as big relative to you as you are to …

I’m just getting a feeling like I had in 2016 that this is Trump’s to lose. Now, what’s your feeling telling you? Well, you know, there’s—and I get this data pretty well every morning—there’s 43 counties in seven states. 45% of the population hates Trump…

Hello teachers, I’m Sal Khan, founder of the not-for-profit Khan Academy, and I’m here to announce a nationwide back-to-school learning challenge called LearnStorm. LearnStorm is an exciting way to jumpstart your school year around learning activities. I…

In other videos, we’ve already talked about the difference between distance and displacement, and we also saw what it meant to plot position versus time. What we’re going to do in this video is use all of those skills. We’re going to look at position vers…