Safari Live - Day 368 | National Geographic

The first people who lived here named themselves. Across the continent, in hundreds of languages, the word for people - or the First People - was what they used. Other people existed, to trade and talk and fight with. But the continent was vast and travel…

So where we left off, we were looking at this parametric function for a three-dimensional curve and what it draws. I showed you was a helix in three-dimensional space, and we’re trying to find its curvature. The way you think about that is you have a circ…

What’s up, Grandma’s guys? Here, so no surprise, your credit score is pretty much the single most influential deciding factor when it comes to all things personal finance, building wealth, and saving a ton of money. Those three numbers pretty much become …

One of the most common problems I hear about nowadays, and I’m sure everyone else does, is this feeling of being chronically tired. Because sometimes it feels like no matter how much sleep you get, you just can’t seem to perk up, feel energetic for most o…

Every day you cross paths with countless strangers. People sit next to you on the bus; you’re a cashier at the grocery store, sends you a smile, and someone works out beside you at the gym. Often, these faces pass us by; there’s nothing particularly disti…

We’re told point A is at negative one, four and point C is at four, negative six. Find the coordinates of point B on segment line segment AC such that the ratio of AB to AC is three to five. So, pause this video and see if you can figure that out. All ri…