Mark Zuckerberg on Taking Risks and Finding Talented People

[Narrator] Art, philosophy, democracy, and heroes. These are just a few achievements of the legendary civilization known as ancient Greece. Ancient Greece was born on the shores of the Aegean Sea about 4,000 years ago. In over a millennium, it expanded to…

We’re told that a metal ball lies on a flat horizontal surface. It is attracted by two magnets placed around it. We’re told that the first magnet’s force on the ball is five newtons. We’re then told the second magnet’s force on the ball is three newtons i…

[Music] We’re all hoping that there’s some intelligent aliens trying to talk to us, sending us signals. But just because we want it to be true, doesn’t mean every radio signal from space that we can’t immediately understand must be some intelligent alien…

Hey, Vsauce. Michael here. And I’m home for the holidays. I’m in my parents’ basement, using a different camera than usual. But you know what is always different? Fingerprints. The palms of our hands and the soles of our feet are weird. They are covered w…

Well, an atom’s made of protons, neutrons, and electrons. The first two in the nucleus, the third around it. It’s mostly empty space, but it feels solid in any case. The elements are all the different types of atoms; they differ by the number of protons i…

Whereas which ellipse is represented by the equation ( (x - 4)^2 / 16 + (y - 1)^2 / 49 = 1 )? And we’re given a bunch of choices here. We’re given four choices here, so let’s just think about what’s going on here. The center of the ellipse is going to b…