Silver
material · 3000 BC · Ancient world
A precious metal, the best conductor.
Principles and materials it uses
- Electrical conduction — uses. The best conductor.
Where it is used
- Mirror — is material for. A silver coating.
- Silver halide — is material for. A silver salt.
- Coin — is material for. Silver coins.
- Dental filling — is material for. Silver in the amalgam.
- Wall mirror — is material for. Silvering.
- Torsion balance — is material for. The suspension fibre is a thin silver wire.
- Mechanical pencil — is material for. Early mechanical pencils were silver.
- Syringe — is material for. Early needles were silver.
- Electrocardiograph — is material for. The quartz string of Einthoven’s galvanometer is silvered.
- Electroencephalograph — is material for. The electrodes are silver with silver chloride.
- Iconoscope — is material for. The target is a mosaic of silver grains with caesium.
- pH meter — is material for. The internal electrode is silver chloride.
- Control rod — is material for. Control rods of pressurized water reactors are a silver–indium–cadmium alloy.