Otto v. Guerickes manometer

Danish Instrument Inventory text:

Barometer. Otto v Guericke's. T-shaped wooden frame H1050 L900 supports a wooden balance beam L960. At one end, arm L250, a large metal sphere Dia640 is suspended, whereas the other end of the beam, arm L700, supports a weight of small volume (missing), and is provided with a pointer, indexing on a brass scale 20-0-20. Equilibrium depends on the buoyancy of the atmosphere. Cpr item 465.Ref: Det phys Cab vol1 p138 pl25 fig8.Not signedc1800 (g)

• Category: Pressure
• Hauch number: C43
• Inventory number: 1840
• Danish Instrument Inventory number: 466

• Hauch references:
• Begynd.grund: §0
• Cabinet 1: 1138 25,08

• Literature:
• Sigaud de Lafond : 1,2108

• Guericke(1661);
  

  Erxlebens(1790), §263;
  

  Fouchy(1794)