Safari Live - Day 42 | National Geographic

Alvaro presses the treadle of a spinning wheel with his foot. It moves a bar up and down, making the wheel spin. So just to be clear, what a treadle is: this is an old spinning wheel, and this little pedal is a treadle. As this goes up and down, it’s goin…

The magnitude of the equilibrium constant tells us the relative amounts of products and reactants at equilibrium. For example, let’s look at a hypothetical reaction where gas A turns into gas B. For the first example, let’s say that gas A is represented b…

In 1970, a British mathematician named John Conway created a project known as the Game of Life. Even though it’s a game, it isn’t one that you necessarily play. The Game of Life is a zero-player game, which doesn’t make much sense when you hear it. The wa…

Hey guys, please find your seats. We’re going to get started. It’s great to see you all! We have a very exciting topic today with some very exciting speakers. I’m so excited to be here with you to talk about AI competition and startups. Before I recogniz…

The first thing an investor ought to ask themselves before they buy a stock, even before we get to price and so on, is that buying a stock is a far more complicated activity than most people seem to think. What’s happened with the development of markets i…

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 …