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  • Hey YouTube what's up?

  • My Name is Kenneth.

  • Today I want to share with you some thoughts I had on the Rubik's Cube and what makes

  • it so hard to solve.

  • Now this is a new kind of video for me, so please let me know what you think in the comments

  • bellow. If you like it, hit the thumbs up or share it with a friend.

  • Have you ever wondered why a Rubik's Cube is so hard to solve?

  • The reason the Rubik's Cube is so hard to solve is because a Rubik's Cube can be twisted

  • into many different positions, yet there is only one position that is solved.

  • So how many positions can one twist a Rubik's cube?

  • It turns out the answer is 43 quintillion.

  • 43 quintillion sounds big, but how big is it.

  • Well here's one way we can think about it.

  • Let's imagine I wanted to see every position of a Rubik's Cube. So what I did was I drew

  • each position on a separate piece of paper. Then I stacked all 43 quintillion papers.

  • Let's see how high the stack would be.

  • So I started on the kitchen table. It didn't take long before I needed a ladder. Soon the

  • house wasn't big enough. I had to take it outside.

  • The latter wouldn't take me high enough so I found a crane. Pretty soon even that

  • wasn't high enough.

  • With the help of a hot air balloon I continued to stack. Now my stack was higher than the

  • tallest building in the world.

  • I really began to enjoy this project. Soon it took me where no one else had ever been.

  • Now I was farther than the moon.

  • I really got to know our solar system. Here's the Sun, Mercury, Venus, Earth, Mars, the

  • Asteroid Belt, Jupiter, Saturn, Uranus, Neptune, and Pluto.

  • Pluto's no longer a planet, but let's just assume I didn't get the memo.

  • I continued the stack and took myself on a grand tour of our solar system. I went straight

  • toward Pluto. Once at Pluto I realized I was low on fuel and food and should probably start

  • heading back. So I started a stack on Pluto back toward Earth.

  • The trip back seemed to go by quickly and eventually I returned to earth. It was depressing

  • to know I wasn't even half way done. After fuelling up the tank, It was time for another

  • trip. Resolved to finish this epic quest I set out on multiple trips.

  • I finally finished all 43 quintillion positions. It only took 728 stacks.

  • Hidden out in the mass of papers is one paper that is special. Each paper has a unique picture

  • of a Rubik's Cube, but only one paper has the picture of a solved Rubik's Cube.

  • It's your job to find that paper.

  • Good luck!

Hey YouTube what's up?

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B1 中級

ルービックキューブってなんでこんなに難しいの!? (Why is the Rubik's Cube so Hard?!?!!)

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    LIAM に公開 2021 年 01 月 14 日
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