Safari Live - Day 121 | National Geographic

Hello everyone! October 2019 is over, which means that it’s time for the next Q&A. As most of you know, there’s a Patreon edition and a public edition. In this public edition, I’ll talk about the effect of the internet in regards to the shadow, which …

We need to be able to get off of Earth better. So, first thing we need to work out is how to very efficiently get off of Earth. Then we can start working out how to efficiently get on to Mars. If you want to get off the planet Earth today, you’ve got one …

Hi everyone, Sal Khan here. Welcome to the Homeroom live stream. We have a very exciting guest today. We’re gonna have John Dickerson, who works for 60 Minutes, a CBS contributing analyst, contributes to The Atlantic, and also has written “The Hardest Job…

Hey, Vsauce. Michael here. And as they say, “a bird in the hand is worth two in the bush.” What it means is that it’s better to have a certain advantage than to have nothing, except the possibility of a greater one. But two birds in the bush? Who calcula…

Every 5 hours, somewhere in the world, a new McDonald’s pops up. It’s been said that McDonald’s is one of the very few businesses that will always be profitable and recession-proof. And once you look at the stock, it seems to be true. So how did McDonald’…

Our home is burning. Rapid climate change is destabilizing our world. It seems our emissions will not fall quickly enough to avoid runaway warming, and we may soon hit tipping points that will lead to the collapse of ecosystems and our civilization. While…