Safari Live - Day 42 | National Geographic

Hello everyone. This is Thanh again. Thank you for joining me, and today we are finally going to get into some real research. Not just that current event stuff, but some real stuff. Before I start, I want to mention I have not forgotten about the episode…

Sci-fi geeks surely know this, but I don’t know how widespread it is in the rest of the population that the second installment of the “Back to the Future” trilogy, there’s a scene that takes place in the future on October 21st, way in the year 2015. Well,…

The folks you see in this picture are two NASA astronauts who also happen to be identical twins. On the left here, this is Mark Kelly; you can see his name on his patch right over there. And then this is Scott Kelly. The reason why we want to look at the…

What we have here is the graph of r is equal to sine of two theta in polar coordinates. If polar coordinates look unfamiliar to you, or if you need to brush up on them, I encourage you to do a search for polar coordinates in Khan Academy or look at our pr…

What is the largest star in the universe and why is it that large? And what are stars anyway? Things That Would Like To Be Stars We begin our journey with Earth. Not to learn anything, just to get a vague sense of scale. The smallest things that have so…

Welp, I thought this is going to be a normal day. As I woke up, opened my computer, took a sip of coffee, expected to get more recommendations on Johnny Depp’s trial, and was immediately hit by the headline: GDP fell by 1.4 percent, leading to the concern…