Safari Live - Day 368 | National Geographic

My Very Easy Method Just Speeds Up Naming… Planets. Every Physics classroom has a Solar System line like this. Or… like this. (Sorry, Pluto.) Looking at the line, which planet is closest to Earth: Venus or Mars? To answer, you need first know that, like …

In a previous video, we’ve looked at these graphs. This is y equal to one over x squared. This is y is equal to one over x. We explored what’s the limit as x approaches zero in either of those scenarios. In this left scenario, we saw as x becomes less an…

Suck on a fish head lollipop and chew bubble gum shaped like butt cheeks. It’s episode 24 of LÜT. Vat19’s chameleon lamp detects the color of the surface it’s on and glows that color. You can also turn your iPhone into a laser pointer with an app and a sm…

[Music] The WNG toad is found only in the Laramy Plains of Wyoming. It’s found nowhere else in the world, and it has the maybe unfortunate distinction of being one of the most endangered amphibians in North America. I think it’s the most endangered amphib…

In the last video, I started to talk about the formula for curvature. Just to remind everyone of where we are, you imagine that you have some kind of curve in, let’s say, two-dimensional space, just for the sake of being simple. Let’s say this curve is pa…

So, we were talking about the wealth inequality that characterized the Gilded Age, but you were telling me that that’s not the only thing, Kim, that characterizes this period. Right? What really makes the Gilded Age happen is what we call the Second Indus…