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

Spool Trick


less than 1m read
·Nov 10, 2024

Today I'm doing a two-part experiment involving a spool. I've wrapped some nylon rope around the spool, and right now it's coming over the top, as you can see. I'm going to place the spool down beside me, and I'm going to pull the rope horizontally towards me.

I want you to make a prediction: what's going to happen when I pull the rope? Will it move to the right or to the left? Or does it depend on how I pull the rope?

It will go this way; it'll go to the left. I don't know why, but it will. I think it'll go to the right. It depends on how you pull it. What do you reckon?

If it's loose, yeah, it's just going to spin around on the sp—on the blue bit. But if it's tight, it's going to come toward—no, it's going to stay where it is; it's going to unwind.

I'd like you to make your prediction now by clicking on one of the annotations. Now, I should point out that this is only the first part of the experiment, so try not to overthink it. If you're on a mobile device, you can find the links in the description below.

All right, are you ready? 3, 2—[Applause]—1.

More Articles

View All
Adora Cheung - How to Prioritize Your Time
Hello, as Kevin said, my name is Adora. I’m one of the partners at YC, and I’m going to talk about how to prioritize time. Time, as you know, is precious, especially when you’re working on a startup. Time burns money, and money is the very basic thing tha…
The One Question That Will Get You Ahead
Let’s have an honest talk, shall we? Do you truly want to be successful? Do you want to live that unbothered life and never worry about anything ever again? If this is your goal, well, it’s time for a reality check. Ask yourself the following question: W…
David Rusenko at Startup School 2012
Well, thanks for having me, guys. Uh, you can hear me all right? Cool. So, I wanted to start by just uh, going over the Weebly story a little bit, telling you uh, kind of how we got to where we got to today and some of the lessons we learned along the wa…
The Fermi Paradox II — Solutions and Ideas – Where Are All The Aliens?
There are probably 10,000 stars for every grain of sand on Earth, in the observable universe. We know that there might be trillions of planets. So where are all the aliens? This is the Fermi Paradox. If you want to know more about it, watch part one. Here…
Calculating internal energy and work example | Chemistry | Khan Academy
In this video, we’re going to do an example problem where we calculate internal energy and also calculate pressure-volume work. So we know the external pressure is 1.01 * 10^5 Pascals, and our system is some balloon. Let’s say it’s a balloon of argon gas.…
Prelude to the Peloponnesian War | World History | Khan Academy
In the last few videos, we talked about the Greco-Persian Wars, or we could say the Persian invasion of Greece. In the first wave, the first Persian invasion, the Athenians were able to stop them at Marathon. Then, in the second Persian invasion, led by X…