Safari Live - Day 129 | National Geographic

So I have the matrix A over here, and A has M rows and N columns. So we could call this an M by N matrix. What I want to do in this video is relate the linear independence or linear dependence of the column vectors of A to the null space of A. First of a…

This is where astronauts go to get a drink. Get it? And catch that hot dog! It’s episode 9 of [Music]. Do you like girls but also like Legos? Well, you’re in luck! Last week, damage.com showed me Lego sculptures for [Music] adults, and BuzzFeed collected…

[Music] When National Geographic asked me to photograph this bat story, I was really excited because it was an opportunity to work with some really interesting scientists, like Rodrigo. I get to work with the species I’ve never seen before. Very little h…

What’s up you guys? It’s Graham here. So, for those of you that have watched the channel for a while, or for those of you that know me in person, you know that I’m pretty frugal. Honestly, that might even be pretty generous to say—how about extremely thri…

If you were building a bike, you would probably go off and get a seat, a set of handlebars, a set of tires, and then assemble those pieces together. You wouldn’t harvest your own rubber and try and forge a tire from scratch. With programming, we do the sa…

Hi everyone! Welcome to our homeroom livestream. South Khan here from Khan Academy. For those of you who are wondering what this is, this is just something we started up several months ago, especially when we all have to become socially distant, as a way …