Safari Live - Day 129 | National Geographic

What we’re going to do in this video is talk about two of the ways that a virus can leverage a cell to replicate the virus’s DNA. So the first is the lytic cycle, and this is what people often associate viruses doing. Let’s imagine a cell. It’s going to …

Now I’m going to clear off the screen here, and we’re going to talk about the shape of the sign function. Let’s do that. This is a plot of the sign function, where the angle Theta—this is the Theta axis in this plot—where Theta has been plotted out on a s…

I had one moment when I decided to change my life. When I was a little boy, I dreamed of where I am now, and I remember saying to my father, “One day I’ll show you.” Certain moments in our life, we get little signals, little flashes. I may have had a visi…

Hello grammarians! Today we’re going to talk about a class of auxiliary or helper verbs called the modal verbs. These are verbs that have special properties and help other verbs. But what is modality? My fellow grammarian, I am so glad you asked! Modalit…

The one thing I really like about the LearnStorm activities is that they, uh, they introduce students to the growth mindset concept, to neuroplasticity, to the fact that the brain grows and changes. Um, and they introduce the importance of effort. It’s r…

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…