Safari Live - Day 121 | National Geographic

Let R be the region enclosed by y is equal to four times the square root of nine minus x and the axes in the first quadrant. We can see that region R, and gray right over here, region R is the base of a solid. For each y value, the cross section of the so…

Spending your entire life in space. If there’s another planet suitable for humans, it will be quite a long journey to get there. Even traveling at one percent of the speed of light, it would still take 10,000 years to go only 100 light years. This means …

Hey, it’s me Destin. Welcome back to Smarter Every Day! So, if you watch Smarter Every Day for any length of time, you know that it’s about whatever I’m thinking about—like in Eclipse, or how brains work, or helicopters, or management, or whatever. You di…

I’ve got two of my brothers here. I don’t think you’ve ever met them before, so be careful because they’re way smarter and better looking than me. But they got questions for you as well. I’ll go first. Kevin, thanks for doing this. And, uh, now that we’v…

Cameras aren’t working. That’s getting super frustrating. This is what it’s like: I went below zero. Cameras are down, tough conditions all around. A fill-in: no heat, no power, do anything. Won’t even turn on. Yeah, Baggins, this is a typical day in the…

[Man] Seven zero, six up, point four up. Standby for impact! - Welcome back to Smarter Every Day. I’ve made a really long journey to an ice floe in the Arctic Ocean to board the USS Toledo, a U.S. Navy fast attack nuclear submarine, which has punched its …