Mark Zuckerberg on Taking Risks and Finding Talented People

On the 5th of February 1958, a Mark 15 thermonuclear bomb was loaded onto a B-47 aircraft stationed at Homestead Air Force Base in Southern Florida. The plane was to take part in an extended training mission meant to simulate an attack on the Soviet Union…

In this video, we’re going to try to understand limits of composite functions, or at least a way of thinking about limits of composite functions. In particular, we’re going to think about the case where we’re trying to find the limit as x approaches a of …

Vaccines are celebrated for their part in fighting disease. But, a growing group of people seem to believe that they endanger our health, instead of protecting it. The Internet is full of stories about allergic reactions, the onset of disabilities, and ev…

[Instructor] In our study of world history, we have looked at many different empires, and several of them are depicted on this map right over here. We spent a lot of time on the Roman Empire, and in the highlighted yellow, you see the Roman Empire at roug…

What’s up, Graham? It’s guys here, and we’ve got some pretty serious news. After hitting some of the highest interest rates that we’ve seen since 2001, the Federal Reserve has officially made their decision today to pause the rate hike for the month of Se…

This is all being done at night. Pitch black, there are no lights. You see the cars driving into the Tiger Temple and the staff workers that are helping the wildlife traders. In December 2014, at the famed Tiger Temple in Thailand, investigators say a gro…