Safari Live - Day 129 | National Geographic

What’s up you guys, it’s Graham here. So we’ve seen it again: stocks have just hit all-time highs. But the real question remains, how high can this go? And also, should we just sell it all? I feel like so many people are sitting on the edge of their seat,…

I was looking through my journal from our first trip here 35 years ago. One of the things that struck me as I was reading it, I had hiked up to the top of one of the peaks here and had to turn around and come down. Because you don’t spend all of your time…

The mass of the Earth is about 6 * 10 ^ 24 kg. But you know what? I always wondered, how did we figure this out? How on Earth do you figure out the mass of a planet? Well, we did that by using Newton’s universal law of gravity, and in this video, we’re go…

James counted the number of alligators in various local bodies of water and graphed the results. How many fewer alligators are in Bite Swamp than Chomp Lake and Reptile Creek combined? So down here we have this bar graph that Jam somehow survived to crea…

The graph of function f is given below. It has a vertical tangent at the point (3, 0). So (3, 0) has a vertical tangent. Let me draw that. So it has a vertical tangent right over there and a horizontal tangent at the point (0, -3). (0, -3) has a horizonta…

For the last 48 years, Dr. Joyce Poole has been eavesdropping on elephant families, learning their language. “I speak to elephants. I rumbled to them if they seem upset. I say hello and things. Their vocabulary is very large. Elephants have over 30 vocal…