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

Yay! Suzie’s by the trees and the cherry blossoms. Let the wind go through my hair, so guess what city I’m in? Washington D.C., our nation’s capital. It is the seat of power for the United States of America. Our country may be young, but what a history we…

So we’re asked what is the charge of a calcium ion with 18 electrons. So pause this video and see if you can work that on your own. I will give you a little bit of a tip: a periodic table of elements might be useful to see where calcium sits on that perio…

So, let’s talk a little bit about abiotic factors for an organism’s range. Before we even get into it, let’s just think about what these words mean. In other videos, we’ve talked about how abiotic means non-living, while biotic would refer to living. So, …

Bouncing across a scene, tumbleweed established the Wild West as Western. But more than just prompts, tumbleweed are real, and tumbleweed are alive. Well, they were alive. Each tumbleweed starts as a tiny seed on the craggy landscape, putting down roots, …

We don’t go to them and say, hey, we’ve got electricity. We’re going to bring it to you. We’re going to bring you modern entertainment that electricity provides, no. They’re coming to us and saying, we’re so far off the grid, we don’t have any electricity…

When you look at this painting, what do you see? A woman looking out a window? How about now? This famous painting by Salvador Dali is based on something called the “Lincoln illusion.” The effect shows how blurring pixelated images can make it easier to r…