Mark Zuckerberg on Taking Risks and Finding Talented People

So we’ve been given the value of h of x at a few values of x, and then we’re told James said that since h of 7 minus h of 3 over 7 minus 3 is equal to 1. So this is really the average rate of change between x is equal to 3 and x is equal to 7, between th…

It’s a hot breezy summer day in Los Angeles. I’m just recording the sounds of my neighborhood here in the Huntington Park neighborhood. You might see a woman named Eileen Garcia driving from tree to tree, trying to give them some much-needed relief from t…

It was just a little bit of like a calm before the storm. People were waiting for something very bad to occur. Sydney, Australia, is a very vibrant city. It is usually bustling. Seeing it so stark is one of those things that you would expect to see from o…

So where we left off in the last video, we have the Neo-Babylonians, the Chaldean Empire, being conquered by the Persians led by Cyrus the Great. That’s in 539 BCE that Cyrus the Great conquers Babylon, and they’re able to establish a significant Empire. …

We do have our genus. What these discoveries are telling us is that there’s a lot out there to be found, that we actually don’t have the whole story of human evolution. I mean, it looks like it might be a fragment of like the superorbital taurus or someth…

Everybody feels lonely from time to time. When we have no one to sit next to at lunch, when we move to a new city, or when nobody has time for us at the weekend. But over the last few decades, this occasional feeling has become chronic for millions. In th…