Ex-CIA Spy: China Is Preparing & We're Not Paying Attention! Here's What Happens If They Takeover!

[Music] Curiosity and exploration are simply part of our DNA. What’s at the top of that mountain? What’s around that ridge? What’s in that forest? What’s across that body of water? This quest to explore things that we think might be beyond our reach or mi…

We have this big moment, and the moment is that for 35 years of my teaching career, I walked into the classroom having no idea if the kids had done the homework or what their commitment was to this subject. And then suddenly, there’s this coaching platfor…

What’s up guys! It’s Graham here, so today I’m gonna be touring Jason Oppenheim’s snootily finished ten million dollar house here in the Hollywood Hills. I gotta say, this one has some of the most outrageous high-quality, just extravagant finishes, furnit…

Hi, everyone. Sal Khan here from Khan Academy, and I’m here with Grace Hoyt, head of Account Security Partnerships at Google to talk a little bit about online safety. Welcome, Grace. Thanks for having me, Sal. So let’s just start at the basics. What is …

[Music] I was born and raised in the chaotic streets of Mexico City. This is Jorge Kanyes, an activist. He’s standing at an intersection in Mexico City, wearing a black mask and a cape. I was an ordinary citizen until one day I went to a lucha libre match…

The twice differentiable function g and its second derivative g prime prime are graphed, and you can see it right over here. I’m actually working off of the article on Khan Academy called Justifying Using Second Derivatives. So we see our function g, and…