
Global Light Knowledge Test
Since 2013, we have been measuring the global knowledge about light through the online quiz game.
The results are based on 261110 answers to questions in category light, given by players from 151 countries.
This test has questions in the following languages:
Ukrainian language, French language, German language, Dutch language, English language, Polish language, Romanian language, Portuguese language, Spanish language, Russian language and Italian language.
Results by country
Results by gender

30.4% | /67495 |

17.1% | /60848 |
Origin of answers
Answers distribution by gender:
gender
men
52%
67495
women
48%
60848
Answers distribution by language:
language
Ukrainian language
0%
27
French language
0%
110
German language
3%
8997
Dutch language
0%
89
English language
10%
27456
Polish language
84%
221100
Romanian language
0%
0
Portuguese language
0%
62
Spanish language
0%
1080
Russian language
0%
1084
Italian language
0%
1105
Answers distribution by country:
country

84%
220733

3%
8498

2%
7783

2%
7352

1%
3350

0%
1323

0%
1298

0%
994

0%
975

0%
776
Quiz size
Number of active questions per language:
language
Ukrainian language
1%
1
French language
1%
1
German language
19%
16
Dutch language
1%
1
English language
25%
21
Polish language
40%
34
Romanian language
1%
1
Portuguese language
1%
1
Spanish language
2%
2
Russian language
4%
4
Italian language
1%
1