Safari Live - Day 42 | National Geographic

Hi everyone, Sal Khan here. Welcome to the Homeroom with Sal livestream. We have a very, very exciting conversation today with Jennifer Doudna, the 2020 Nobel Prize winner in Chemistry for what has often been described as one of the most important discove…

And we had a night class. A few years ago, I’ll never forget it. This guy puts up his hand, who hasn’t contributed anything all night. He says, “Listen, I’ve been running this business out of my dorm, and I’m about to graduate. It’s a cloud business that …

[Music] Rivers really are a little bit like stories. They have a beginning, a middle, and an end. And just like any good story, you really have to start at the beginning. 4,000 miles from the Andes to the Atlantic flows the iconic Amazon River, depended u…

We usually let the startups in each batch decide when they want to launch. Um, so most of the startups in the winter ‘17 batch haven’t announced yet. But, um, there is one female founder who has announced her company. Um, it’s called Simple Habit. It is a…

I’m 30 feet down using a dining system I’d never tried before called snuba. I’m trying to keep my air hose from strangling me, praying I don’t run into a great white below the surface. I try to focus on finding a crayfish. I fight through the thick kelp u…

Hello, Internet. A lot of you sent me this image making the rounds which concerns the Mayan prediction that the world will end on December 21, 2012. The claim is that the Mayan calendar short counted the years because they forgot about leap days, so the w…