Safari Live - Day 42 | National Geographic

It’s time. Let’s reveal the 12,025 Human Era Calendar. Let’s travel back 200,000 years to humanity’s greatest journey that took our ancestors from East Africa all across the planet. With nothing on their feet and only primitive tools, they set out to cro…

Many of our viewers have asked us a very serious question: What if we made a big pile of bombs and exploded every nuclear weapon in the world all at once? Strangely enough, we couldn’t find a good source to answer this question to our satisfaction. So, we…

What’s happening? Boys trying to show this boy out on tightrope? Make you figure out you mean you’re doing nothing. Okay, I’m waiting on parts right now. Thank you. Much stuff, there’s plenty of cleaning. There’s lots of stuff doing their cleaning. Don’t …

We’re told this table defines function f. All right, for every x, they give us the corresponding f of x according to the table. Is f even, odd, or neither? So pause this video and see if you can figure that out on your own. All right, now let’s work on t…

What’s up, guys? It’s Graham here. So, here’s a question that’s been coming up a lot recently, and this is a very confusing question for most people. That is this: What is better to invest in, a Roth IRA or traditional 401k? Now, this is actually a some…

If I asked you to show me a picture of your mother, you wouldn’t show me a, uh, closeup shot of her elbow. But you could, and you’d be right. That would be a photo of her, but it wouldn’t feel right because it’s not her face. That’s how important faces ar…