【No. 0064】A Way to Reach Moon by Folding a Paper
Feb 20, 2015 17:17
Today, I'd like to talk about a famous math problem.
"In order to reach moon, how many times do you need to fold a paper?"
If you never heard this problem, I want you to think before looking at the following answer.
Typical paper thickness is around 0.1 mm, so I will use this value here. A paper thickness which was folded n times is expressed as 0.1 times two to the power of n. Also, the distance between earth and moon is around 384,400 km. Therefore, the answer is forty-two times. When we fold a paper forty-two times, the paper thickness will be 439,804 km. Also, the paper thickness which is folded 15 times is around human height, the paper thickness which is folded 83 times is around a diameter of a galaxy. However, it is said that we can fold a paper no more than 8 times because required force to fold the paper increase while the paper area decrease.
"In order to reach moon, how many times do you need to fold a paper?"
If you never heard this problem, I want you to think before looking at the following answer.
Typical paper thickness is around 0.1 mm, so I will use this value here. A paper thickness which was folded n times is expressed as 0.1 times two to the power of n. Also, the distance between earth and moon is around 384,400 km. Therefore, the answer is forty-two times. When we fold a paper forty-two times, the paper thickness will be 439,804 km. Also, the paper thickness which is folded 15 times is around human height, the paper thickness which is folded 83 times is around a diameter of a galaxy. However, it is said that we can fold a paper no more than 8 times because required force to fold the paper increase while the paper area decrease.
Corrections (1)
No. 1 Zoe
- A Way to Reach Moon by Folding a Paper
- A Way to Reach the Moon by Folding a Paper
- "In order to reach moon, how many times do you need to fold a paper?"
- "In order to reach the moon, how many times do you need to fold a paper?"
- If you never heard this problem, I want you to think before looking at the following answer.
- If you have never heard this problem, I want you to think before looking at the following answer.
- Typical paper thickness is around 0.1 mm, so I will use this value here.
- The typical paper thickness of paper is around 0.1 mm, so I will use this value here.
- A paper thickness which was folded n times is expressed as 0.1 times two to the power of n.
- A paper thickness which wais folded n times is expressed as 0.1 times two to the power of n.
- Also, the distance between earth and moon is around 384,400 km.
- Also, the distance between the earth and the moon is around 384,400 km.
- Therefore, the answer is forty-two times.
- This sentence is perfect! No correction needed!
- When we fold a paper forty-two times, the paper thickness will be 439,804 km.
- When we fold a paper forty-two times, the paper's thickness will be 439,804 km.
- Also, the paper thickness which is folded 15 times is around human height, the paper thickness which is folded 83 times is around a diameter of a galaxy.
- Also, thea paper thickness which is folded 15 times is around human height, theand a paper thickness which is folded 83 times is around athe diameter of a galaxy.
- However, it is said that we can fold a paper no more than 8 times because required force to fold the paper increase while the paper area decrease.
- However, it is said that we can fold a paper no more than 8 times, because the required force to fold the paper increases while the paper area decreases.
Toru
Thank you so much for correcting me! :)
I wanna be good at use of articles.
Thank you so much for correcting me! :)
I wanna be good at use of articles.