Safari Live - Day 129 | National Geographic

Lawton, you made a video about the predatory business practices of Starbucks and asked how this will be dealt with in a free market or how we dealt with in the absence of government regulation. Specifically, I think that in a free market, some businesses…

The initial guesses at what knowledge was all about amounted to what is known as the justified true belief vision of knowledge, and it’s still the most prevalent idea today. Anyone who calls themselves a Bayesian is a justified true believer, and that’s t…

Let’s say we have a pure sample of phosphorus pentachloride, and we add the PCl5 to a previously evacuated flask at 500 Kelvin. The initial pressure of the PCl5 is 1.6 atmospheres. Some of the PCl5 is going to turn into PCl3 and Cl2. Once equilibrium is r…

Hey everyone! So, in the last video, I introduced this thing called the second partial derivative test. If you have some kind of multi-variable function, or really just a two-variable function, is what this applies to—something that’s f of X, Y—and it out…

Hi everyone! Welcome to our homeroom livestream. Very excited about the conversation we’re about to have. But I will start with my standard announcements, reminding everyone that we at Khan Academy we’re a 501c3. We’re a not-for-profit; we can only exist …

What’s up, you guys? It’s Graham here. So, after all the popularity revolving around Robinhood’s 3% checking and savings accounts, and all the excitement and hysteria revolving around that, and everybody losing their minds, and also issues with the SIPC,…