Safari Live - Day 121 | National Geographic

We need to be able to get off of Earth better. So, first thing we need to work out is how to very efficiently get off of Earth. Then we can start working out how to efficiently get on to Mars. If you want to get off the planet Earth today, you’ve got one …

Hello everyone, thank you so much for coming. My name is Becca Skinner, and I’m a National Geographic Young Explorer and an adventure photographer. Before I get started and tell you why, in this photo, I’m carrying 110 liters of camera gear across the coa…

Hi guys, it’s me Judy. I’m back with another vlog! You guys have been asking me, “What the hell are you doing if you’re taking a break from med school?” So I decided to answer your guys’s question and show what my typical day looks like. I’ve been doing …

Let’s say we have the function ( f(x) = x^6 - 3x^5 ). My question to you is, using only what we know about derivatives, try to figure out over what interval or intervals this function is decreasing. Pause the video and try to figure that out. All right,…

(Gentle music) - I remember the first time that I snorkeled. We jumped in the water and we saw many colorful fish. And it was unbelievable. So since then, I wanted to repeat that experience again. It wasn’t until I turned 24 when I had the opportunity to …

The sun is yellow, or is it? You’re used to seeing a happy yellow circle floating in a blue sky, but that’s fake news. If you placed a prism in a sunbeam in space, you’d see that the sun radiates light in every color of the visible spectrum. If these colo…