How to Get Started, Doing Things that Don't Scale, and Press (How to Start a Startup 2014: 8)

Playing around with nuclear weapons in videos is fun. There’s a visceral joy in blowing things up and a horrifying fascination with things like fireballs, shockwaves, and radiation. And while it does help put our destructive power in perspective, it’s not…

To our daily homeroom live stream, I’m excited about our conversation today with Khan Academy’s Head of Engineering, VP of Engineering, Marta Casarchin. Uh, but before we get into that, I will give my standard announcement. A reminder to everyone that Kh…

Let’s see if we can figure out what 2 and 1⁄4 times 3 is. Pause this video and see if you can work that out. All right, now there’s different ways that we could approach this. One way to approach this is to recognize that if I multiply anything times thr…

Mind reading? Of course not. I love reading. Look, mind reading might sound like pseudoscientific—pardon my language—bullshoot. But its scientific counterpart, thought identification, is very much a real thing. It’s based in neuroimaging and machine learn…

The Lewis electron dot diagram for C2H4 is shown below. In the box on the left, in the box on the right, complete the Lewis electron dot diagram for C2H5O, or ethanol, by drawing in all of the electron pairs. As they said, this right over here, this is t…

Hi, welcome to Khan Academy! I’m Kristen Deserva, the Chief Learning Officer, and I want to introduce you to Conmigo. Conmigo is an empathetic tutor that can help your students along their learning journey. It can prompt them to ask questions, it can ans…