Safari Live - Day 42 | National Geographic

We have this big moment, and the moment is that for 35 years of my teaching career, I walked into the classroom having no idea if the kids had done the homework or what their commitment was to this subject. And then suddenly, there’s this coaching platfor…

We’re setting camera traps to study tigers. Two people got eaten by tigers right before we started. When there’s a tiger around, you can’t sleep; you can barely eat. You can’t do anything because all you are scared for your life. I’ve been in Indonesia n…

[Music] The first commercially successful digital camera was a Natasha camera. When that came, I really realized, together with the cell phone, it becomes the poet of the 21st century. [Music] Link generator, know something in the email authenticator. I t…

So what I want to do in this video is familiarize ourselves with the second derivative test. Before I even get into the nitty-gritty of it, I really just want to get an intuitive feel for what the second derivative test is telling us. So let me just draw…

Yellowstone is the only place in the US where bison have lived continuously since prehistoric times. Their relentless search for better grazing grounds means crossing rivers like the Lamar. Crossings are no big deal for the grown-ups but a daunting busine…

What’s up you guys? It’s Graham here. So, as some of you know, last year I bought a Tesla Model 3. In typical me fashion, I tried to be as frugal as possible to get the car’s price down as much as I could by skimping on all of the options. I decided to p…