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

All right, who here watches Shark Tank? Do you like that show? Shark Tank? I love that show! I love that show! It’s on tonight, and if you haven’t seen it, it’s where inventors pitch their products to investors. A few weeks ago, they asked me to be a gue…

What we’re going to do in this video is calculate a typical measure of how well the actual data points agree with a model—in this case, a linear model. There are several names for it; we could consider this to be the standard deviation of the residuals, a…

We’re told that glucose (C6H12O6) reacts with oxygen to give carbon dioxide and water. What mass of oxygen in grams is required for complete reaction of 25.0 grams of glucose? What masses of carbon dioxide and water in grams are formed? So pause this vid…

DONALD TRUMP: The United States will withdraw from the Paris Climate Accord. I was elected to represent the citizens of Pittsburgh, not Paris. Pittsburgh? Now what was upsetting about that, and that alliteration, was the stereotype of our past. But Pittsb…

This is the Tekoi Test Range. Or, at least it once was. The site is long abandoned now, but it once served a vital purpose. A military purpose. And the work done at Tekoi is still out in the world today. Constructed during the Cold War, at the entrance to…

I would like to introduce Kirsty, who is going to talk, uh, in much detail about SAFE’s notes, equity, and the like. “Kirsty.” “All right, good morning everybody. So, my name is Kirsty Nathu. I’m the CFO and one of the partners here at Y Combinator. I h…