Safari Live - Day 76 | National Geographic

Where we left off in the last video, we were in the year 656, and the third Khilafah Uthman, or Usman, is assassinated. Ali is chosen to be Khalif. Remember, Shia believe that Ali should have been Khalif immediately after the death of Muhammad, and they c…

Let’s say that Y is equal to log base 4 of x^2 + x. What is the derivative of y with respect to x going to be equal to? Now, you might recognize immediately that this is a composite function. We’re taking the log base 4 not just of x, but we’re taking tha…

In previous videos, we have talked about the idea of price elasticity. It might have been price elasticity of demand or price elasticity of supply, but in both situations, we were talking about our percent change in quantity over our percent change in pri…

In my animal misconceptions video, I casually mentioned that daddy long legs aren’t spiders and received a ton of comments asking for clarification or suggesting that it’s not that simple. So I feel the need to clear things up a bit. But first, a disclaim…

Hello Internet. The UK had an election we need to talk about because after the debates finished, the people voted and the ballots tallied the results were this: But parliament ended up looking like this: which isn’t, exactly, representative. And by not e…

Um, hi everybody. I’m Jimmy. I’m the co-founder and CTO of Pocket Worlds, where Highrise is. We built Highrise, the app which is available on iOS and Android, and I think to date it has over 5 million downloads, and we’re grossing over a million a month i…