Saturated. adj.
A liquid is saturated with a substance when it has dissolved all that it
can, while an excess is present in the liquid. It is possible, by
dissolving some salts in hot water and allowing the solution to cool
without access of air, to obtain a supersaturated solution. On
introduction of a crystal of the salt, or often on mere access of air,
the solution forms crystals and the liquid left is saturated.
Saw, Electric.
A platinum coated steel wire mounted and connected to be raised to
incandescence for cutting purposes.
Schweigger's Multiplier.
An old term for the galvanometer as invented by Schweigger soon after
Oerstedt's discovery.
Scratch Brushes.
Brushes for cleaning the surface of articles to be electroplated to give
a good metallic surface suitable for deposition. They have often wire
instead of bristles.