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.
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Answers by country
Barometer
Sextant
Astrolabe
A clock
answers
Republic of Ireland
26
Belgium
14
Poland
14360
Turkey
12
Greece
21
the Netherlands
21
Germany
557
Romania
19
Switzerland
52
Australia
42
Canada
65
Austria
90
the United Kingdom
186
India
94
Portugal
12
the United States
257
France
51
Italy
30
Mexico
13
Spain
20