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

Let's think about Lightning - Smarter Every Day 15

2m read
·Nov 3, 2024

[Music] [Rainfall and thunder] Hey, it's me, Destin.

So I'm gonna explain why thunder sounds the way it does. And uh, we're in the middle of a thunderstorm here, obviously, so I'm going to try to make this quick.

So basically, if you're standing on the ground here, and let's say there's lightning that happens way up in the sky, really far away from you. So what happens is, as soon as it breaks the sound barrier, that sound wave starts traveling towards your body. But also, the speed of the electricity of the lightning bolt is a lot faster than sound, so that... Oh wow, that's going to be a big one. At least I could see it.

So also, that lightning bolt... [Thunder] outruns the sound. So the sound is simultaneously initiated from all points along the lightning bolt, at the same time. So what happens is you get some cracks that happen before other cracks and you get this low rumble. So you might get... [Thunder] a really low rumble, like that.

So what happens is, if the lightning bolt is really really really far away from you, then all the sound might make it to you at the same time. But sometimes you get this long drawn out thunder rumble, and that's because the sound is coming to you at different points from along the bolt. It has to do with the distance of the lightning bolt, your position and the sound.

So there you go. I know that's not in-depth at all, but I'm in the middle of a thunderstorm. But I hope you're smarter every day and you at least get to think about it. Have a good one. [Thunder]

[Music] ...Good at this, so... I'll show you.

Watch his head stay totally stationary as I move his body. I can move his body in pretty much any direction. Captioning in different languages welcome. Please contact Destin if you can help.

Calculations using Avogadro's number (part 1) | Chemistry | Khan Academy
How One Brilliant Woman Mapped the Secrets of the Ocean Floor | Short Film Showcase

More Articles

View All
Monetary policy tools | Financial sector | AP Macroeconomics | Khan Academy
What we’re going to do in this video is think about monetary policy, which is policy that a central bank can use to affect the economy in some way. This is often contrasted with fiscal policy, and that would be a government deciding to tax or spend in som…
Molecular geometry (VSEPR theory) | Chemistry | Khan Academy
A molecule of carbon dioxide is pretty much straight, whereas a molecule of water is bent. Why the difference? More importantly, is there a way to predict what the shape looks like in three dimensions of any molecule? The answer is yes, by using a theory …
Antarctica is Beautiful, but Changing | Continent 7: Antarctica
My name is Peter BS, and I’m the Chief Executive of Antarctica New Zealand, the New Zealand government agency that’s responsible for New Zealand’s affairs in Antarctica, including the running of Scott Base and New Zealand Science Program. One of the best…
This is how one of the first nature documentaries came about.
This is some of the earliest film of Antarctica and the South Atlantic. These groundbreaking images were captured by Frank Hurley, the legendary filmmaker who documented Sir Ernest Shackleton’s doomed Antarctic expedition. When their ship, Endurance, sank…
Steve Jobs on Consulting
I mean, you guys, most of you come from companies where you’ve had work experience, right? How many of you are from manufacturing companies? Oh, excellent! Where the rest of you from? Okay, so how many from consulting? Oh, that’s bad; you should do someth…
How To Be More Focused While Studying - A Quick Guide
Hey, it’s Joey and welcome to Better [Music] Ideas. So, if you’re anything like me, you find it sometimes really difficult to just dive into work. I’m talking not really about procrastination, but the specific inability to eliminate distractions and get i…