yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Touching a Meteor | StarTalk


2m read
·Nov 11, 2024

As far as science was concerned, I was completely hopeless. I mean, I remember, um, in my biology class, I was put in the front row. I hated being in the front row because, you know, you're in direct contact with the person who was teaching you. I would have an earphone in my ear; I had one of these first transistors because I'm very old. So, transistors sort of came out when I was young, radio, and it was smallish. I had the earphone, and I was listening to the tennis. In other words, I was not paying attention in class at all. But I was doing very badly.

But at prep school, I discovered a, um, meteorite as I was walking back from the games. Sadly, I didn't put it in my pocket; it was quite large. I was honest; I gave it to the Headmaster, and, um, it was sort of, I don't know where it went. It went to a museum or something, but I wish I had kept it. Isn't it just so you can relive the moment when you discovered a meteorite in the flower bed of your prep school many moons ago? I have a meteorite that you can touch, but you're not—I'm not going to hand it to you because I don't know what you're going to do with it.

“Well, I'll be very careful of it. I'll be very respectful! This is 4 and a half billion years old.”

“What? Whoa!”

“Well now, what—why I'm amazed by this—is this a part of a meteorite?”

“Yes, it is part. That—he's a good clever man here. You—you hired the right guy for your movie. This is part of a meteorite that was the size of that sphere of the Hayden sphere, most of which vaporized on impact with Earth. Fragments got strewn around, and the crater that was made by the parent of this is still around. You can find it in Arizona, and it's called Meteor Crater.”

“Have you analyzed this?”

“It's mostly iron—about 90% iron, 10% nickel—common in the kind of meteorite that this is. Now here's something to think about: once you feel that, imagine that just falling from the ceiling, oh, and hitting you in the head. Then your head is a pile of goo. Right? Now imagine something the size of that sphere, and it's going to make a crater a mile across. Now imagine something the size of Mount Everest moving at 10 miles per second, and you can judge how devastating that can be to our ecosystem.”

“Did it affect the tilt?”

“No, on that level, it's like a gnat flying into the buttocks of an elephant.”

“Right, right, right. I'm not flying into the butt—yeah, we had some elephants on our movie. One walked off set, actually.”

“Oh really? Okay, probably.”

“KN in the box.”

More Articles

View All
Prompting basics | Introducing Khanmigo | Khanmigo for students | Khan Academy
In this video, we’re going to see that you can have very different experiences with the same AI, and a lot of that is depending on how we prompt the AI. So before we even start doing some prompting ourselves or even understanding what that means, let’s ju…
Ask Sal Anything! Homeroom Tuesday, August 11
Hi everyone! Sal here. Welcome to the, I guess, Homeroom with Sal, uh, live stream. The name keeps evolving a little bit. A couple of quick announcements. First of all, uh, we were hoping to have Lester Holt today, uh, but him being in the news industry,…
Mohnish Pabrai: How to Stop Picking Losing Stocks (Mohnish Pabrai's Checklist)
Studying investing legend Manish Pibrai has made me a better investor, and as a result, has helped make me more money when investing. In this video, we are going to talk about a concept that, in hindsight, seems so simple and easy to apply to your own inv…
See the Sparks That Set Off Violence in Charlottesville | National Geographic
The point of the rally is to, number one, protect this statue because this statue is one of many statues that are in honor of the history of Western civilization and European peoples that are being torn down. [Applause] The policies that liberals have put…
Homeroom with Sal & Rachel Skiffer - Tuesday, June 23
Hi everyone! Sal Khan here from Khan Academy. Welcome to our daily homeroom, which is our way of staying in touch. It started with obviously all the school closures and social distancing with COVID, but now it’s really just evolved into an interesting for…
Lattice energy | Molecular and ionic compound structure and properties | AP Chemistry | Khan Academy
You may already be familiar with Coulomb’s law, which is really the most important or underlying law behind all of what we know about electrostatics and how things with charge attract or repulse each other. But a simplified version of Coulomb’s law is ju…