What Would You Do If Money Didn’t Matter? | Short Film Showcase

There’s two kinds of ideal sources we’re going to talk about. One is an ideal voltage source, and the other is an ideal current source. An ideal voltage source, the symbol looks like a circle; like that, we put a voltage indication right inside there. Tha…

We have many videos on Khan Academy on things like evolution and natural selection. We think we have a fairly solid understanding of how life can evolve to give us the variety, the diversity that we’ve seen, and the complexity that we’ve seen around us. B…

In this video, we’re going to talk about one of the most important U.S. Supreme Court cases that has helped determine the balance of power between the federal government and the states, and that’s McCulloch versus Maryland. So the year is 1816. After the…

Hi everyone, Sal Khan here from Khan Academy. Welcome to the Homeroom live stream! It’s been a little while since we last saw each other, so it’s so good to see you again. We have an exciting conversation today with David Siegel, who’s a co-chair, co-foun…

So, let’s say I was preparing to go on a long hike. Besides packing water, dressing for the weather, and mapping my route, I’d probably also want to eat a snack before leaving to make sure I have enough energy for the hike. We, as humans, need food to nou…

To put this in context, you were mid-20s and I had just gotten—I just started as a rookie professor two years before. So, Bill, at the time, was trying to set up an interesting business, which ultimately became Gotham Partners. So, for those of you who ar…