Satya Nadella on the journey to becoming Microsoft's CEO & reimagining technology's impact

How the economic machine works, in 30 minutes. The economy works like a simple machine. But many people don’t understand it — or they don’t agree on how it works — and this has led to a lot of needless economic suffering. I feel a deep sense of responsibi…

( Intro music ) About a week into our expedition, a rebel group from the Islamic Movement of Uzbekistan moved through the valley, and they saw us 1,000 feet up on this big wall. They saw this as this opportunity. And so, we awoke one morning to bullets fl…

One thing, when we’re selling an airplane, people always need to know what’s the history of the airplane. How do we know that the maintenance is correct, the pedigree is correct, how it’s been maintained, or where it’s lived—location, or in a hangar? We …

[Voiceover] So, we have three functions here. What I want to do together is think about whether each of these functions are even or odd. And just as a little bit of a reminder, for an even function, if you were to input -x into the function, it’s the sa…

The eel has this challenge that when it gives off electricity, that electricity is distributed around the eel in the water. A predator that is on land and reaching into that pool may not receive very much of a shock. You’ve got this tale from 1800 about …

Black holes are the most powerful and extreme things in the universe, and they’re wildly weird and complicated. What would happen if you fell inside one, and what are they? [Music] Really, first we need to talk about space and time. Space and time are t…