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

[Narrator] What I’m gonna do in this video is give us an overview of the first significant dynasties in Ancient and Imperial China. Now, in a previous video, we talk about the Xia dynasty, which we’re not sure whether it exists because we don’t have a l…

[Music] Hey, it’s me D, and welcome back to Smarter Every Day! So you are probably well aware of the awesome science that comes out of space telescopes, but what you might not be aware of is the awesome science that goes into making these things work. Fo…

Are we through the banking crisis at this point? Failures, the orders of banks may have lost a hell of a lot of money. The people who want the debt of the holding company, they may lose a lot of money. People can, they can lose a lot of money, uh, but the…

What is space time? You already know. You have never met someone at a place unless it was also at a time. You have never met someone at a time unless it was– OK, I get it. I get it. So we– Whoa, well, wait a minute. What happens to a photon from 13 billi…

[Narrator] The universe is everything. From the tiniest particles to the largest galaxies, to the very existence of space, time, and life. But how did it all begin? The origin of the universe is the origin of everything. Multiple scientific theories plus …

What we want to do in this video is figure out what the limit as ( x ) approaches ( z ) of ( \frac{1 - \cos(x)}{x} ) is equal to. We’re going to assume we know one thing ahead of time: we’re going to assume we know that the limit as ( x ) approaches ( 0 )…