Ultraviolet catastrophe

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Ultraviolet catastrophe

Quality:

Ultraviolet catastrophe - classical physics prediction that black body radiation grows unbounded with frequency. Article “Ultraviolet catastrophe” in Simple English Wikipedia has 0.7 points for quality (as of July 1, 2026).

This article has the best quality in Croatian Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Ultraviolet catastrophe”, its content was written by 6 registered users of Simple English Wikipedia and edited by 417 registered Wikipedia users in all languages.

The article is cited 3 times in Simple English Wikipedia and cited 350 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #2035 in March 2017
  • Global: #1441 in April 2003

The highest popularity rank from 2008:

  • Local (Simple English): #3498 in November 2021
  • Global: #96860 in May 2017

There are 25 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1Croatian (hr)
Ultraljubičasta katastrofa
36.786
2Serbo-Croatian (sh)
Ultraljubičasta katastrofa
32.6618
3French (fr)
Catastrophe ultraviolette
20.4678
4English (en)
Ultraviolet catastrophe
20.4602
5Swedish (sv)
Ultravioletta katastrofen
17.7138
6Chinese (zh)
紫外灾变
17.5747
7Persian (fa)
فاجعه فرابنفش
16.3337
8Russian (ru)
Ультрафиолетовая катастрофа
16.0737
9Czech (cs)
Ultrafialová katastrofa
15.9164
10Ukrainian (uk)
Ультрафіолетова катастрофа
15.9155
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Ultraviolet catastrophe" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Ultraviolet catastrophe
1 773 347
2Russian (ru)
Ультрафиолетовая катастрофа
338 018
3Spanish (es)
Catástrofe ultravioleta
308 256
4Italian (it)
Catastrofe ultravioletta
238 181
5French (fr)
Catastrophe ultraviolette
190 960
6Portuguese (pt)
Catástrofe do ultravioleta
114 477
7Chinese (zh)
紫外灾变
111 318
8Arabic (ar)
الكارثة فوق البنفسجية
40 192
9Korean (ko)
자외선 파탄
37 093
10Indonesian (id)
Bencana ultraungu
25 558
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "Ultraviolet catastrophe" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Ultraviolet catastrophe
5 259
2Russian (ru)
Ультрафиолетовая катастрофа
733
3French (fr)
Catastrophe ultraviolette
598
4Spanish (es)
Catástrofe ultravioleta
500
5Italian (it)
Catastrofe ultravioletta
396
6Chinese (zh)
紫外灾变
356
7Portuguese (pt)
Catástrofe do ultravioleta
177
8Japanese (ja)
紫外破綻
144
9Korean (ko)
자외선 파탄
119
10Persian (fa)
فاجعه فرابنفش
74
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Ultraviolet catastrophe" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Ultraviolet catastrophe
135
2French (fr)
Catastrophe ultraviolette
60
3Italian (it)
Catastrofe ultravioletta
43
4Russian (ru)
Ультрафиолетовая катастрофа
25
5Spanish (es)
Catástrofe ultravioleta
16
6Portuguese (pt)
Catástrofe do ultravioleta
15
7Chinese (zh)
紫外灾变
15
8Arabic (ar)
الكارثة فوق البنفسجية
12
9Persian (fa)
فاجعه فرابنفش
12
10Swedish (sv)
Ultravioletta katastrofen
10
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "Ultraviolet catastrophe" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Arabic (ar)
الكارثة فوق البنفسجية
1
2English (en)
Ultraviolet catastrophe
1
3Bulgarian (bg)
Ултравиолетова катастрофа
0
4Catalan (ca)
Catàstrofe ultraviolada
0
5Czech (cs)
Ultrafialová katastrofa
0
6Danish (da)
Ultraviolette katastrofe
0
7Spanish (es)
Catástrofe ultravioleta
0
8Persian (fa)
فاجعه فرابنفش
0
9French (fr)
Catastrophe ultraviolette
0
10Croatian (hr)
Ultraljubičasta katastrofa
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Ultraviolet catastrophe" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Ukrainian (uk)
Ультрафіолетова катастрофа
93
2English (en)
Ultraviolet catastrophe
44
3French (fr)
Catastrophe ultraviolette
23
4Russian (ru)
Ультрафиолетовая катастрофа
19
5Korean (ko)
자외선 파탄
18
6Chinese (zh)
紫外灾变
18
7Italian (it)
Catastrofe ultravioletta
16
8Catalan (ca)
Catàstrofe ultraviolada
14
9Spanish (es)
Catástrofe ultravioleta
14
10Croatian (hr)
Ultraljubičasta katastrofa
12
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in June 2026:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in June 2026:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
الكارثة فوق البنفسجية
bgBulgarian
Ултравиолетова катастрофа
caCatalan
Catàstrofe ultraviolada
csCzech
Ultrafialová katastrofa
daDanish
Ultraviolette katastrofe
enEnglish
Ultraviolet catastrophe
esSpanish
Catástrofe ultravioleta
faPersian
فاجعه فرابنفش
frFrench
Catastrophe ultraviolette
hrCroatian
Ultraljubičasta katastrofa
huHungarian
Ultraibolya katasztrófa
idIndonesian
Bencana ultraungu
itItalian
Catastrofe ultravioletta
jaJapanese
紫外破綻
koKorean
자외선 파탄
msMalay
Malapetaka ultralembayung
nlDutch
Ultravioletcatastrofe
ptPortuguese
Catástrofe do ultravioleta
ruRussian
Ультрафиолетовая катастрофа
shSerbo-Croatian
Ultraljubičasta katastrofa
simpleSimple English
Ultraviolet catastrophe
skSlovak
Ultrafialová katastrofa
svSwedish
Ultravioletta katastrofen
ukUkrainian
Ультрафіолетова катастрофа
zhChinese
紫外灾变

Popularity rank trends

Best Rank Simple English:
#3498
11.2021
Global:
#96860
05.2017

AI rank trends

Best Rank Simple English:
#2035
03.2017
Global:
#1441
04.2003

Local popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Ultraviolet catastrophe from Wikipedia articles about Black-body radiation, Black body, Gravitational singularity, Rayleigh–Jeans law and Cosmological constant problem. Whereas reading the article about Ultraviolet catastrophe people most often go to Wikipedia articles on Rayleigh–Jeans law, Black body, Plancks law, Cosmological constant problem and Wien approximation.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, List of sex positions, 2026 Iran war, Suresh Raina, Politics of Germany, Academy Award for Best Director, 2020, DYSS-TV, 2022.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information