Safari Live - Day 42 | National Geographic

Okay, so stop me if you’ve heard of a rabbi, a pastor, and an imam walk into a bar. Okay, so plus bard was a diner to discuss my shows, The Story of God, about creation. So the rabbi says, “There’s this beautiful story in Judaism where Adam is going thro…

All right, hello everybody, and thank you all for taking time out of what’s got to be an incredibly busy day to join us for this webinar. My name is Karen White, and I’m on the product team here at Khan Academy. I’m also the mother of two girls, ages 12 a…

[Voiceover] I would like to welcome you to Biology at Khan Academy. And biology, as you might know, is the study of life. And I can’t really imagine anything more interesting than the study of life. And when I say “life,” I’m not just talking about us, h…

Let’s say that X is a function of the parameter T, and it’s equal to cosine of T, and Y is also defined as a function of T, and it’s equal to sine of T. We want to find the arc length of the curve traced out, so the length of the curve from T equals 0 to …

They light up the sky and fall toward Earth at speeds 32 times faster than a speeding bullet. Meteor showers have been mesmerizing us for centuries, and they’re a beautiful reminder that we are part of a busy and mystical solar system. But what exactly a…

What’s up you guys? It’s Graham here. So I need to make a video about this because there’s a lot you need to hear. A little over three years ago, this guy reached out to me over email and said we had a lot in common. He told me that he had been watching …