Safari Live - Day 42 | National Geographic

So we have the function ( f(x) = x^6 - 3x^5 ) and we want to know over what intervals is ( f ) decreasing. We’re going to do it without even having to graph ( y = f(x) ). The way we do that is we look at the derivative of ( f ) with respect to ( x ) and t…

All right, in this video we’re talking about the document-based question or DBQ section on the AP US History exam. Now, this is one of two main essays that are on the exam. One is based on documents that are provided to you, and the other is based on your…

Hey, Vsauce. Michael here, and today we are going to talk about why we dream. What’s going on inside our brains? The scientific study of dreaming is called Anaya ology, and for most of history, it didn’t really exist. Because you can’t hold a dream, it’s…

Have you heard of Virtual Bagel? Their Facebook page has over 4,000 likes. They use the page to promote their brilliant business model: “we send you bagels via the Internet – just download and enjoy.” It sounds like a joke, and it is, sort of. This page w…

So we are interested in studying the relationship between the amount that folks study for a test and their score on a test, where the score is between zero and six. So what we’re going to do is go look at the people who took the tests. We’re going to plot…

This is their earliest pre-colonial shipwreck ever discovered. It’s from the European Age of Discovery when Columbus, Magellan, and Vasco da Gama were going around the world. This is the Esmeralda shipwreck of Vicente Sodré. We have over 2,800 individual …