Safari Live - Day 337 | National Geographic

[Applause] Five fun physics phenomena. Number one: Have a friend hold a cane out horizontally for you, or another similar object. Putting your two index fingers together, try to place them underneath the center of mass. When they let go, you will find i…

We’re told you have a solid that you know is mostly sodium chloride. You suspect that it might have, or it may have, some sodium iodide, potassium chloride, or lithium chloride as well. When you analyze a sample, you see that it contains 73% chlorine by m…

Hello, welcome to the daily homeroom. Sal Khan here from Khan Academy. For those of you, for those of you, uh, that this is the first time you’re joining, this is something that we’re doing on a daily basis so that we all feel connected in this time of sc…

What’s up, you guys? It’s Graham here. So let’s talk about something that probably most of us want to achieve at some point, and that is the milestone of becoming a millionaire. I remember growing up I wanted to achieve this, and I heard the term milliona…

Now let’s look at a rectangular prism. This is not a cube because we can see that all the sides have different lengths. We have the length, the width, and the height, and those are all different. To find the volume of this, I would still multiply the leng…

Should I brew more? Still warm, and it’s been awhile. But the Law of Cooling is a decaying exponential. But you need a measurement on the liquid to get the heat transfer coefficient. Don’t worry about the measurement for now. We’ll find a new way to thin…