21 grams experiment

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21 grams experiment

Quality:

21 grams experiment - 1907 pseudo-scientific study by Duncan MacDougall. Article “21 grams experiment” in Simple English Wikipedia has 70.8 points for quality (as of July 1, 2025). The article contains 45 references and 10 sections.

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

Since the creation of article “21 grams experiment”, its content was written by 3 registered users of Simple English Wikipedia and edited by 272 registered Wikipedia users in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #3735 in September 2023
  • Global: #37015 in September 2021

The highest popularity rank from 2008:

  • Local (Simple English): #1125 in March 2024
  • Global: #16045 in September 2015

There are 9 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, 2025 (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
1Simple English (simple)
21 grams experiment
70.8077
2English (en)
21 grams experiment
53.9367
3Indonesian (id)
Percobaan 21 gram
50.1224
4Persian (fa)
آزمایش ۲۱ گرم
46.2016
5Portuguese (pt)
Experimento do peso da alma
43.3535
6Spanish (es)
Experimento de los 21 gramos
41.4657
7Vietnamese (vi)
Thí nghiệm 21 gam
37.8804
8Korean (ko)
21그램 실험
35.5851
9French (fr)
Poids de l'âme
28.8097
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 "21 grams experiment" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
21 grams experiment
2 492 114
2French (fr)
Poids de l'âme
488 344
3Persian (fa)
آزمایش ۲۱ گرم
96 004
4Korean (ko)
21그램 실험
30 436
5Vietnamese (vi)
Thí nghiệm 21 gam
20 913
6Simple English (simple)
21 grams experiment
18 224
7Portuguese (pt)
Experimento do peso da alma
17 738
8Spanish (es)
Experimento de los 21 gramos
6 817
9Indonesian (id)
Percobaan 21 gram
813
More...

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

Most popular in June 2025

The most popular language versions of the article "21 grams experiment" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
21 grams experiment
8 255
2French (fr)
Poids de l'âme
1 517
3Spanish (es)
Experimento de los 21 gramos
546
4Simple English (simple)
21 grams experiment
393
5Korean (ko)
21그램 실험
343
6Persian (fa)
آزمایش ۲۱ گرم
341
7Portuguese (pt)
Experimento do peso da alma
131
8Vietnamese (vi)
Thí nghiệm 21 gam
128
9Indonesian (id)
Percobaan 21 gram
27
More...

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

The highest AI

Language versions of the article "21 grams experiment" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
21 grams experiment
161
2French (fr)
Poids de l'âme
68
3Vietnamese (vi)
Thí nghiệm 21 gam
15
4Persian (fa)
آزمایش ۲۱ گرم
10
5Portuguese (pt)
Experimento do peso da alma
6
6Korean (ko)
21그램 실험
5
7Spanish (es)
Experimento de los 21 gramos
3
8Simple English (simple)
21 grams experiment
3
9Indonesian (id)
Percobaan 21 gram
1
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 2025

Language versions of the article "21 grams experiment" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
21 grams experiment
4
2Spanish (es)
Experimento de los 21 gramos
0
3Persian (fa)
آزمایش ۲۱ گرم
0
4French (fr)
Poids de l'âme
0
5Indonesian (id)
Percobaan 21 gram
0
6Korean (ko)
21그램 실험
0
7Portuguese (pt)
Experimento do peso da alma
0
8Simple English (simple)
21 grams experiment
0
9Vietnamese (vi)
Thí nghiệm 21 gam
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 "21 grams experiment" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
21 grams experiment
24
2French (fr)
Poids de l'âme
19
3Persian (fa)
آزمایش ۲۱ گرم
5
4Korean (ko)
21그램 실험
4
5Spanish (es)
Experimento de los 21 gramos
3
6Vietnamese (vi)
Thí nghiệm 21 gam
3
7Portuguese (pt)
Experimento do peso da alma
1
8Indonesian (id)
Percobaan 21 gram
0
9Simple English (simple)
21 grams experiment
0
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in June 2025:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in June 2025:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
enEnglish
21 grams experiment
esSpanish
Experimento de los 21 gramos
faPersian
آزمایش ۲۱ گرم
frFrench
Poids de l'âme
idIndonesian
Percobaan 21 gram
koKorean
21그램 실험
ptPortuguese
Experimento do peso da alma
simpleSimple English
21 grams experiment
viVietnamese
Thí nghiệm 21 gam

Popularity rank trends

Best Rank Simple English:
#1125
03.2024
Global:
#16045
09.2015

AI rank trends

Best Rank Simple English:
#3735
09.2023
Global:
#37015
09.2021

Local popularity rank history

Local AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on 21 grams experiment from Wikipedia articles about 21 Grams, Soul, Duncan MacDougall, Spirit and Dark Matters: Twisted But True. Whereas reading the article about 21 grams experiment people most often go to Wikipedia articles on 21 Grams, Fringe science, Soul, Reporting bias and Evil.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 15 February 2026

On 15 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Wuthering Heights, 2026 Winter Olympics, Epstein files, Ilia Malinin, Wuthering Heights, Ghislaine Maxwell, Lucas Pinheiro Braathen, 2026 Winter Olympics medal table, Valentine's Day.

In Simple English Wikipedia the most popular articles on that day were: XXXTentacion, Black, List of European countries, Jeffrey Epstein, Vitruvian Man, Golden Edge, Jacqueline Kennedy Onassis, List of countries, Manon Bannerman, Megan Skiendiel.

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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information