Mark Zuckerberg on Taking Risks and Finding Talented People

To everything there is a season, a time to be born and a time to die. For some, it’s Grandma or Grandpa. For others, it’s Mom or Dad. For some, it’s a brother, a sister, a friend, or a lover. Whoever it is, whenever it is, one thing is for sure: at some p…

(Slow guitar music) In Peru, it is very common that archaeological sites are surrounded by local communities, villages, towns, where people live usually in the most traditional ways. Pachacamac is a huge archaeological site south of Lima. Around it, we ha…

Hello and welcome back to Khan Academy live SAT. I’m Eric, I’m an SAT tutor and one of the SAT experts here at Khan Academy. Today is our third and final class as a part of this series. We’ve covered SAT Math two weeks ago, last week we covered SAT Readin…

So now we’ve seen rotation by multiplying J by J over and over again, and we see that that’s rotation. Now let’s do it for the general idea of any complex number. So if I have a complex number, we’ll call it Z, and we’ll say it’s made of two parts: a rea…

Hey, Vsauce. Michael here. And today we’re going to discuss déjà vu. What is it, and why does it occur? You know, those moments where the current situation feels like it’s happened before? You’re certain it has, but you don’t know when, or how it became s…

Congratulations on completing Khan for Educator’s initial course! Your efforts to grow your professional learning inspire all of us at Khan Academy. While this course has come to an end, Khan Academy offers other communication channels and opportunities …