Safari Live - Day 129 | National Geographic

Video, I want to tackle an entire AP Macroeconomics free response exercise with you. Assume that the economy of Country X has an actual unemployment rate of seven percent, a natural rate of unemployment of five percent, and an inflation rate of three perc…

What we’re going to do in this video is give ourselves a little bit of a tour of eukaryotic cells. The first place to start is just to remind ourselves what it means for a cell to be eukaryotic. It means that the inside of the cell there are membrane-boun…

[Music] I consider myself a birder now, but believe me, when I started this project, I was the farthest thing from a birder. My name is Steven Wilks. I’m a photographer and a fine artist. I’ve been taking pictures for most of my adult life. My first photo…

So how far are you coming from? I come from south. Okay, all the way south? Yeah. Coming and going to? Heading north. Heading north? Okay. Okay. Yeah, we are rounding up these horses. Oh yeah? Yeah, my horses had strayed from this wapan Roundup. T…

One of the most commonly used tools in all of statistics is the notion of a z-score. One way to think about a z-score is it’s just the number of standard deviations away from the mean that a certain data point is. So let me write that down: number of stan…

[Applause] Now, in a previous video, I showed you that you can only suck up a straw that’s 10.3 m long. And that’s even if you can create a perfect vacuum inside your mouth. If you haven’t seen the original video, check it out. But that raises an interes…