# Talk:Bedsheet Problem

## Contents

• Is there any way you can start this page by showing pictures of something being folded over and over? You could create them digitally, or just take pictures of something. This will help the reader understand the set up of the page and of the question.
• I do think that adding many more images into this page will help drastically. Before adding more explanatory text, spend time looking for and creating images that you think will aid the description and put them all up front. AnnaP 6/21

• Is the girl cropped out of the main image on purpose?

[Placing the girl back into the picture] *Check your image spacing -- a couple images are overlapping/interfering with section headings.

• I like this idea -- it connects to something that I did see spread around as fact when I was little, and I think it's a very accessible topic.
-Kate 21:00, 24 May 2011 (UTC)

xd 02:25, 25 May 2011 (UTC)

In your problem statement, the "Bedsheet Problem", I think you should state the problem first, that is "What is the ultimate number of folds a flat piece of material can achieve". Then you can go on to explain the myth and picture and what this page tries to achieve. You need to give a strong sense of direction to the readers.

• I think this is a really fun topic and an interesting page. The king's problem is one if my favorite math topics. I think there are a couple things you could do to make the page more "fun" though.

:*You could make the titles of the sections more exciting: "Brittany Gallivan" could be something like "Debunking the Myth"...and should it be "folding directions" not "folding direction"? Richard 6/20 </font>

## Short description of image above TOC

*This description seems a little long to me, but it does a good job of posing the problem and explaining its prevalence as a myth. Perhaps part of it could be moved to the basic description section?

• You've got a couple comma-usage errors. There shouldn't be a comma 4th sentence after "Even though" or in the 6th sentence after "Perhaps"
-Kate 21:00, 24 May 2011 (UTC)</font>

*I think you can take out "This leads into the problem:" and have it sound more natural while having the same meaning. Richard 6-20</font>

• I changed the spacing.
• I agree with Kate- this section is too long. I think the second paragraph of this part is a bit redundant after the word However. I think you could cut out everything after "However...." and conclude with "However, all who claimed the myth was valid could only cite empirical evidence, they could not explain or prove it mathematically."

Rebecca 02:26, 25 May 2011 (UTC)

## Basic Description

Richard 6/20 "The bedsheet problem is an urban legend as well as the following:"

• Is it supposed to be "that states the following"?
• It seems to me like more of an old wives tale type of thing than an urban legend???? I don't really know though.

### Folding Direction

• I'm not exactly sure what "length of a fold" means right off the bat. Maybe you could have a picture that diagrams exactly what a "fold" is. And it should be "curve" not "curve" I think in the first sentence of the first big paragraph.
• It might be clearer to explicitly say that there are several methods at the beginning.

### King's Problem

• "If it isn't clear yet" sounds too informal to me.

• I don't believe your second paragraph should begin with "However", because you're not directly contrasting that sentence with anything. I'd just start it with "The thickness, width…"
• This brings the issue with folding a sheet of paper in half -- Do you mean "this brings UP the issue"? Or just "This is the issue with…"
• Using the chessboard to illustrate exponential growth is a really good idea! I think you should mention that it's eight on the next square and not six though. Even though the series starts with 1, I can imagine someone seeing 2, 4 and assuming 6 comes next.
• Typo! After a certain number of fold (this varies… should be "After a certain number of folds…"
• I don't think an urban legend can be "solved", I'd say it was "disproved" or "busted" like you used earlier.
-Kate 21:00, 24 May 2011 (UTC)
• The first paragraph of this section is redundant as well. I think it's a good idea to start with the first sentence that you have (restating the problem) but you don't need the second part.
• I think the second paragraph starting with "Consider a piece of paper..." to "very thick really fast" can be removed. You cover this next, and there's no need to assign variable in this section if you don't use them.
• The section talking about how this is similar to exponential growth is great!
• Start a new section to talk about the king problem, and expand on it.
• I would make a section about the history of the problem too and keep the part about Britney Gallivan separate. It's just a lot of text to have in one section as it is.

Rebecca 02:27, 25 May 2011 (UTC)

xd 02:33, 25 May 2011 (UTC)

This paragraph is too long and it needs to be more concise and straight to the point you need to achieve. From my understanding, you are trying to say two things, 1. There is limit to number of folds. 2. The thickness grows exponentially and that is why it is hard to achieve many folds. Then I suggest moving all the detailed explanation to the More Math Section and try to invoke intuitive understanding of the reading of the two aforementioned points. The anecdote of Britney Gallivan should go into why interesting section, I think.

Based on Maurer's suggestion I introduce Gallivan before going into the problem.

## More Mathematical Explanation

xd 02:36, 25 May 2011 (UTC)

I see this section is not finished yet so I am just offering some general comments. I will take a closer look when this section takes up shape.

1. Outline your goal. What are you trying to prove or disprove and how are you going to get there?

### Derivations

• If you take a sheet of paper the thickness doubles after each fold -- I think you mean "If you keep folding a sheet of paper…"
• Really good job explaining about how the circular part prevents further folding.
-Kate 21:00, 24 May 2011 (UTC)
• Great explanation in the derivations section. Very clear! Rebecca 02:28, 25 May 2011 (UTC)

### Single Direction

*I don't understand the part in parentheses that says "Sloane" and a number, but I think you're still working on this section.[Took this out]

-Kate 21:00, 24 May 2011 (UTC)</font>
• I found this section confusing as well. Sounds good like you're still working though Rebecca 02:29, 25 May 2011 (UTC)
• xd 18:18, 14 June 2011 (UTC) Where did you get this derivation? I tried to follow through this but failed. I did my own derivation and it is different from yours. I think you need to clearly explain your intention before you present the equations. If this whole section is aimed at expanding the the equation for L, the length of material needed , then you need to state that. Otherwise, the reader won't know where you are heading.
• [Still working on derivation with Gene or Maurer.] 16:22 15 June 2011

### Limitations

* I think the limitations section should be bigger, and should have subheadings or bullets for each limitation. You should address each limitation individually, but you have a good start here. Rebecca 02:30, 25 May 2011 (UTC)

### Alternate problem

*Typo: After 3 fold it should be "After 3 folds"

-Kate 21:00, 24 May 2011 (UTC)
• You could add a picture to the related problem section. I can maybe help you if you need to make one. Just a suggestion- this isn't urgent. Rebecca 02:31, 25 May 2011 (UTC)

[Creating Image for this]

==Why It's Interesting==