Safari Live - Day 42 | National Geographic

The figure above shows the graph of f prime, the derivative of a twice differentiable function f on the interval. It’s a closed interval from negative three to four. The graph of f prime has horizontal tangents at x equals negative one, x equals one, and …

They’ve devoured it. There’s no reason to put ourselves in danger. We’re going to let these wolves finish eating this carcass and take off. I think they’re losing interest; they got to be full. With food options limited in the frozen tundra, Ice Age man …

In the year 1900 this little pocket watch cost 250 dollars. Yeah, today it’s worth six thousand dollars. Is it a good relative investment? How do you know when you buy this that it is authentic? It’s over 100 years old. How do you know with certainty? I …

Hi guys, I’m Duty. I’m back with another Japan vlog because you guys seem to like them. We had a flight from Japan to Turkey, so we had to get PCR tested. Here’s us on our way to the lab that we’re gonna get tested. What I like about Japanese transportat…

The Earth isn’t flat, but the solar system is about 4.6 billion years old. The material that makes up our solar system was in the form of a nebula, which is pretty much a big cloud of gas and dust in space. Gravity flattened this material into a disc, lik…

Yeah, let me get a beer. And how are you feeling that from the bottom? Are you some kind of evil wizard? I’m not drinking your evil wizard. But I forget it, just give me two. Speaking of wizards, let’s see what a little hydrogen peroxide and dry yeast ca…