Safari Live - Day 121 | National Geographic

Ancient Greece was not even a cohesive empire; it was made up of many city-states led by Athens and Sparta. But despite its fragmentation, it made innumerable contributions to not just Western civilization but civilization as a whole. Those are contributi…

I should disclose right now then, so we actually make the watches, Kevin, from genuine upcycled firefighting materials. Even elements of the case, which you can see by the striking strap that you have on your wrist. Yes, I should disclose right now that I…

So Doron Holly can stay up here because it’s now time for the YC partner panel. Hi everyone, I’m Sharon Pope. I work at YC, I run marketing programs, and I want to just remind you that you can submit questions. So go to slide o.com (SLIDO.COM). If you do…

What we’re going to do in this video is continue our journey trying to understand what the expected value and what the variance of a binomial variable is going to be, or what the expected value or the variance of a binomial distribution is going to be, wh…

[MUSIC PLAYING] [BIRDS CHIRPING] The Kaibab Plateau is home to one of the last ponderosa pine forests in the southwest. It’s a unique habitat, protected by Grand Canyon National Park, and a spectacle to behold. [MUSIC PLAYING] Less than 5% of the 6 mi…

[Music] Human physiology doesn’t adapt well to space, and things start failing in the body. The bones begin to leech out minerals that it thinks it doesn’t need in a microgravity environment; it’s got to be replaced. We’re learning about problems in the e…