What it is?

Barometer
Sextant
Astrolabe
A clock
This is the clock from the time of the Great French Revolution. During this time the French replaced various non-standard units in physics with the decimal metric system. The 24-hour division of the day was also abolished in favour of 20-hour, however, this regulation did not survive.
Katarzyna DÄ…browska
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Answers by country

Barometer
Sextant
Astrolabe
A clock
answers
flagRepublic of Ireland
0%
8%
16%
75%
12
flagSwitzerland
0%
16%
25%
58%
12
flagPoland
6%
14%
21%
56%
12332
flagAustria
0%
18%
27%
54%
22
flagTurkey
9%
0%
36%
54%
11
flagGermany
5%
19%
20%
52%
144
flagthe United Kingdom
6%
17%
23%
52%
86
flagFrance
7%
11%
34%
46%
26
flagGreece
38%
0%
15%
46%
13
flagIndia
12%
19%
29%
36%
47
flagItaly
9%
9%
45%
36%
11
flagAustralia
30%
0%
35%
35%
20
flagthe United States
18%
15%
28%
33%
153
flagCanada
23%
4%
38%
33%
21