Difference between revisions of "Talk:26: Fourier"
| (10 intermediate revisions by 9 users not shown) | |||
| Line 1: | Line 1: | ||
| + | <!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--> | ||
Isn't the cat also imaginary because its Fourier transform isn't symmetric? | Isn't the cat also imaginary because its Fourier transform isn't symmetric? | ||
| Line 5: | Line 6: | ||
[[User:Shdwdrgn|Shdwdrgn]] ([[User talk:Shdwdrgn|talk]]) 06:33, 8 October 2014 (UTC)shdwdrgn | [[User:Shdwdrgn|Shdwdrgn]] ([[User talk:Shdwdrgn|talk]]) 06:33, 8 October 2014 (UTC)shdwdrgn | ||
| + | Picking up on shdwdrgn's comment above, how interesting would the Fourier transform of Schroedingers's cat be. I guess it would consist of two overlaid graphs neither of which would be certain until you actually looked at it.[[User:EditorGonk|EditorGonk]] ([[User talk:EditorGonk|talk]]) 09:38, 20 July 2018 (UTC) | ||
| − | Might this also be a Garfield joke? Garfield's veterinarian is named Liz. Although Garfield, being roughly a three-dimensional ovoid, would probably end up with a much different looking Fourier transform than what is depicted here. | + | Might this also be a Garfield joke? Garfield's veterinarian is named Liz. Although Garfield, being roughly a three-dimensional ovoid, would probably end up with a much different looking Fourier transform than what is depicted here. --[[Special:Contributions/199.27.130.246|199.27.130.246]] 21:26, 9 October 2014 (UTC) |
| − | --[[Special:Contributions/ | + | I think the transform may be of the movements of various parts of the cat. Cats tend to move their ears and heads a lot, and other parts, less so. What tipped me off is the spike at the tip of the tail. Cats typically twitch the very tip of their tail in a rhythmic fashion. [[Special:Contributions/108.162.216.192|108.162.216.192]] 21:52, 2 March 2015 (UTC) |
| + | |||
| + | Coincidentially, the Fourier transform of a cat was used in a 2003 paper on the so-called phase problem in protein crystallography (figure 3) to illustrate the relevance of phase and amplitude information. See http://journals.iucr.org/d/issues/2003/11/00/ba5050/index.html | ||
| + | and http://journals.iucr.org/d/issues/2003/11/00/ba5050/ba5050fig3.html | ||
| + | |||
| + | Can someone do a reverse fourier transform on the cat's graph and post it here please? --[[Special:Contributions/162.158.79.37|162.158.79.37]] 18:12, 14 July 2020 (UTC)Bumpf | ||
| + | |||
| + | I have done a fourier transform on the graph but sorry to report it's not that interesting. I can't figure out how to upload here so here's an imgur link https://imgur.com/a/APfAxLb (First time contributing sorry if I do something wrong)--[[User:T7685|T7685]] ([[User talk:T7685|talk]]) 00:49, 10 March 2025 (UTC) | ||
| + | :You did great! Thank you for the graphs, I uploaded them myself and [[26: Fourier#Trvia|added them to the article]]! --[[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 15:40, 10 March 2025 (UTC) | ||
| − | I | + | In an attempt to find calculated fourier series of cats I found this gem: [https://www.ellipsix.net/blog/2013/09/interpreting-fourier-transforms.html Interpreting Fourier transforms] [[User:Cynthia7979|Wanderer Sinner]] ([[User talk:Cynthia7979|talk]]) 17:37, 27 March 2025 (UTC) |
| + | |||
| + | My guess is that if you shift the black part of the graph by -50, it will form the cat. [[Special:Contributions/2A0D:3344:34CA:3110:7472:DB46:583D:B4A|2A0D:3344:34CA:3110:7472:DB46:583D:B4A]] 07:25, 4 August 2025 (UTC)Unknown | ||
Latest revision as of 16:55, 19 September 2025
Isn't the cat also imaginary because its Fourier transform isn't symmetric?
I feel like there's another joke in that his cat is "imaginary" or has complex components.
Shdwdrgn (talk) 06:33, 8 October 2014 (UTC)shdwdrgn
Picking up on shdwdrgn's comment above, how interesting would the Fourier transform of Schroedingers's cat be. I guess it would consist of two overlaid graphs neither of which would be certain until you actually looked at it.EditorGonk (talk) 09:38, 20 July 2018 (UTC)
Might this also be a Garfield joke? Garfield's veterinarian is named Liz. Although Garfield, being roughly a three-dimensional ovoid, would probably end up with a much different looking Fourier transform than what is depicted here. --199.27.130.246 21:26, 9 October 2014 (UTC)
I think the transform may be of the movements of various parts of the cat. Cats tend to move their ears and heads a lot, and other parts, less so. What tipped me off is the spike at the tip of the tail. Cats typically twitch the very tip of their tail in a rhythmic fashion. 108.162.216.192 21:52, 2 March 2015 (UTC)
Coincidentially, the Fourier transform of a cat was used in a 2003 paper on the so-called phase problem in protein crystallography (figure 3) to illustrate the relevance of phase and amplitude information. See http://journals.iucr.org/d/issues/2003/11/00/ba5050/index.html and http://journals.iucr.org/d/issues/2003/11/00/ba5050/ba5050fig3.html
Can someone do a reverse fourier transform on the cat's graph and post it here please? --162.158.79.37 18:12, 14 July 2020 (UTC)Bumpf
I have done a fourier transform on the graph but sorry to report it's not that interesting. I can't figure out how to upload here so here's an imgur link https://imgur.com/a/APfAxLb (First time contributing sorry if I do something wrong)--T7685 (talk) 00:49, 10 March 2025 (UTC)
- You did great! Thank you for the graphs, I uploaded them myself and added them to the article! --FaviFake (talk) 15:40, 10 March 2025 (UTC)
In an attempt to find calculated fourier series of cats I found this gem: Interpreting Fourier transforms Wanderer Sinner (talk) 17:37, 27 March 2025 (UTC)
My guess is that if you shift the black part of the graph by -50, it will form the cat. 2A0D:3344:34CA:3110:7472:DB46:583D:B4A 07:25, 4 August 2025 (UTC)Unknown
