Balance Barograph

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Inventory Number: 
AST50
Balance Barograph

The column of mercury is suspended to a bent balance beam with a counterweight. The pressure is proportional to the weight of the mercury in the tube The variation of the pressure are inscribed on a movable board which
thanks to a clockwork slowly descend along the vertical rails.

Data
Date: 
1890 (c.)

Copyright National Hellenic Research Foundation - National Observatory of Athens