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

The Dangers of Kite Surfing | Science of Stupid: Ridiculous Fails


2m read
·Nov 11, 2024

Ben Aaron: In the 1800s, as engineers searched for cost effective alternatives to horses and steam for powering public transport, wind, in the form of large kites, was seriously considered. But now, after two centuries of development, we still don't have kite powered buses. But we can do this.

The board flip. Yes, the butter slide. A nice fence for a grind. Watch out for my post turn. And then there's this. The roll. An airborne inverted spin. Nice work. See you next time.

That was an advanced version of a roll, a core kite surfing trick with plenty of variations. Kite surfers can front roll, back roll, roll, and nose grab. There are all sorts of ways of mixing it up. And that wasn't one of them.

To perfect the right kind of airborne rotation for a kite surfing roll requires a mastery of angular momentum and lift force. Here's the roll 101. As wind flows over a kite's wing-like shape, it generates lift force, pulling him across the water. On launch, he throws his body backwards, generating just enough angular momentum for a complete rotation.

To land, he steers his kite downwards and ahead of him. This increases lift force in the direction of travel, so he avoids sinking. It is complicated stuff to deal with all at once, so first, let's just practice using lift force to get a little air.

OK, we've got that covered. Now let's add some angular momentum for the roll. I said, some. I mean, he did get enough angular momentum for one rotation. But he didn't have time for two.

OK. Let's work on the landing. Now, can you remember which direction we need to send that kite? No, quite the opposite. He actually aced the angular momentum, but if you want to go in this direction, like your board, and your kite is steered down in this direction, it's not going to happen.

OK. Last chance. Arguably worse. Lift force in the wrong direction, too much angular momentum. Very sinky landing.

More Articles

View All
What is a main idea? | Reading | Khan Academy
Hello readers! Today I’m in this peaceful forest to tell you all about the skill of figuring out the main idea of a text. Say, what’s the big idea? Yes, exactly! Wait, what? Oh, hello squirrel! You heard me! Big legs, what’s the big idea with you tromping…
Warren Buffett's Hidden Warning to Investors for 2024
This is Warren Buffett, the best investor the world has ever seen. This is the list of his top 10 stock holdings as of our last update on the 30th of June 2024. As we know, we get these updates every 3 months thanks to a very handy SEC filing called the 1…
Renting vs Buying A Home: Which Is ACTUALLY Cheaper?
What’s up you guys? It’s Graham here. So, you really got to see this. Today, it takes more income to buy a home than at any other point in history. Mortgage demand has also fallen to a 27-year low, and the housing shortage is continually getting worse. So…
Cells and Organisms | Middle school biology | Khan Academy
[Narrator] Hi, everyone. In this video, we are going to be talking about one of the most fascinating and complex features of life on Earth, cells. But before we do, I’d like to take us way back to when I was a little kid. Now I know that for me, at leas…
Desining from Day One: Artists as Founders: Multiverse (S20) - YC Gaming Tech Talks 2020
Um, so we’re Multiverse. We did YC W20, so that was from like January to March of this year, just before Corona hit. Um, so, you know, Multiverse, we’re making next generation tabletop RPGs. You can think of us like a mix between D&D and Roblox. We wa…
Safari Live - Day 174 | National Geographic
This program features live coverage of an African safari and may include animal kills and carcasses. Viewer discretion is advised. A very good afternoon everybody and everyone, and a very warm welcome also to our sunset safari drive all the way from the K…