Safari Live - Day 129 | National Geographic

DEREK: How did Celsius define his scale? MICHAEL: Uh… He took the temperature water freezes at and said that’s zero and then he took the temperature it boils at and says that’s a hundred. And he figured a hundred was a good amount of demarcations to make…

What we’re going to do in this video is talk about the idea of a residual plot for a given regression and the data that it’s trying to explain. So right over here we have a fairly simple least squares regression. We’re trying to fit four points. In previ…

A calendar year is made of three hundred and sixty-five days – a number that refuses to be divided nicely, which is why we end up with uneven months of either 30 or 31 days. Except for February – the runt of the litter – which only gets 28… except when it…

So here we have a set of parametric equations where x and y are both defined in terms of t. If you input all the possible ts that you can into these functions and then plot the corresponding x and y’s for each chord for each t, this will plot a curve in t…

Hi everyone. Welcome to the homeroom live stream! Sal Khan here, uh, very exciting guest today. We’re going to have Vivek Murthy, former Surgeon General of the United States. We’re obviously there’s a lot of things to talk about, health and mental health …

NARRATOR: OK, there’s this Argentinian guy named Adolfo Cambiaso. Many call him “The G.O.A.T of polo.” You know, the sport with the horses and the sticks and the ball and all the money, like the logo on your collared shirt. Adolfo has been ranked among th…