Safari Live - Day 129 | National Geographic

Portals into the heart of the Earth, they burn bottomless cauldrons fueled by an ancient rat, bubbling and boiling thousands of miles beneath the surface and just waiting to burst through. Volcanoes are scattered across the globe; volcanoes can be found a…

So how do you go Ah ha! How do you think? What happened? You’re rubbing your head. Oh, no. Right here is just aching. It is? Yeah, I don’t know why. Is it the conversation? Like my brain is just so excited. Your brain is so excited? Yeah. I’ve ne…

Supernovae are the most powerful explosions in the universe, unleashing enough energy to outshine galaxies. We have no real metaphor for their power. If the sun were to magically go supernova, it would feel like you were being hit by the energy of a nucle…

All right, so now I’m going to do the analysis of this op-amp configuration again, and I’m going to do it using the idea of a virtual ground. The idea of a virtual ground actually makes really short work of analyzing a circuit like this. To review the vi…

Hey, Vsauce. Michael here. When something becomes part of the past, can it ever truly be experienced again? Obviously, my beard will grow back, but it won’t be the same beard, and it won’t be on the same person. It will be on a slightly older, different M…

Hello grammarians! So, if you’ve ever written a list of items or actions, you know that we use commas to separate the elements of that list. Sometimes, though, our lists get a bit complicated, and we have something called a complex list. When that’s the …