Physical Balance (7- Stone)

Key Features

• High Sensitivity: The 7-stone design (agate bearings) reduces friction, allowing for precise weight measurements. Upthrust Experiment Ready: Hangers are equipped with double hooks specifically for performing hydrostatic or Archimedes' principle (upthrust) experiments. 
• Durable Design: Generally features nickel-plated fittings, a golden lacquer finish on the beam, and a robust wooden housing to protect against dust and airflow. 
• Leveling System: Includes a wooden base equipped with leveling screws to ensure accurate, horizontal balance. 
  
  
• Physical Balance (7-Stone) Specifications

Component/Feature	Description/Value
Model/Type	7-Stone Physical Balance
Capacity	Commonly 200g or 250g
Sensitivity	2mg (typical, can vary slightly)
Knife Edges/Bearings	7 Agate (Hardened stone)
Beam	Open-type brass beam, gold lacquer finish
Pans	Detachable, Stainless Steel (approx. 100mm diameter)
Hangers	Double hooks for upthrust experiments
Base	Sturdy wooden base (often Sunmica finish) with leveling screws
Case	Teak wood show case with glass panel doors
Dimensions (Appx.)	420mm x 240mm x 380mm
Weights	Supplied without weights (usually)