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

[Music] It’s always fun sitting on sets, watching everybody in costumes. CU of course, it’s the nearest thing to time travel you can kind of get, you know? Everyone disappears if the crews are in a certain way. You just look around, you see these people, …

Hi everyone, Sal Khan here. Just to remind everyone that Khan Academy is a not-for-profit organization. That means I don’t own Khan Academy; no one owns Khan Academy. We are a public charity, and we can only do the work we do through donations from folks …

We’re told that Elena wants to build a one sample z interval to estimate what proportion of computers produced at a factory have a certain defect. She chooses a confidence level of 94%. A random sample of 200 computers shows that 12 computers have the def…

Have you ever had a door slammed shut in your face only to realize it was the best thing that could have happened to you? Today, we’re going to explore the skill of overcoming rejection head-on, drawing inspiration from the teachings of the stoic philosop…

[Instructor] What we’re gonna do with this video is talk about fertilization and development in human beings, or at least early development in human beings. And this right over here is an actual image of fertilization about to happen or happening. So th…

At Harvard, why this is Kevin O’Leary building a brand in shark-infested waters? It’s a Harvard case about Mr. Wonderful. I can’t believe it; it’s surreal. Of course, I’m honored, no question about it. The whole story is in here, the whole Mr. Wonderful s…