Safari Live - Day 337 | National Geographic

This program features live coverage of an African safari and may include animal kills and carcasses. Viewer discretion is advised. Good afternoon, good afternoon, and a very warm welcome to all of you, ladies and gentlemen, who are watching us on this be…

So here I want to talk about the gradient in the context of a contour map. Let’s say we have a multivariable function, a two-variable function, f of x, y, and this one is just going to equal x * y. So we can visualize this with a contour map just on the …

Look at him right here! God, he’s big. Whoa, look at the size of that animal coming right at us! I am in Cape Cod, Massachusetts, which over the last few years has become sort of great white shark central. Man, look at all the seals! That explains everyth…

We’re told that a 0.450 gram potassium supplement contains 22 percent potassium by mass. The potassium is present in the supplement as potassium chloride, which has a molar mass of 74.55 grams per mole. How many grams of potassium chloride are in the pota…

So this question is: what are the biggest red flags for startup founders that you’ve interviewed? There are many, many things that I look for in interviews, but one of the most important things I look for is the ability for the team to build the product …

Hi everyone, my name is Qi Liu. I’m a partner at Y Combinator. I’m also working on YC China. Today, I’m very, very pleased to have the opportunity to speak to Cindy, the founder and CEO of WebKit. As many of the YC community in the U.S. or China know, Web…