electro massage (elektromasazh)

In therap., the combination of the use of electri city with ma age by employing the more or le specially modified electrodes of a galvanic or faradic battery as instruments for more or le imperfect rubbing and kneading. electro medical (ē-lek-tro-med'i-kal), a. Per taining to the medicinal use of electricity. electrometallurgy (ē-lek-tro-metal-er-ji), n. The art of depositing certain metals, as gold, silver, copper, etc., from their solutions by means of the slow action of an electric current. Its most important applications are electroplating and electrotyping. The e ential parts of the proce of plating with copper, for example, are as follows: If the surface upon which the metal is to be deposited is a mold (as of a medal) of gutta-perch a or wax, it must be made conductor by having its surface brushed over with powdered graphite. It is then attached to the negative pole of the battery and suspended in the solution of the required metal, as copper sulphate, the positive pole at the same time consisting of a plate of the same metal. The result of the electrolysis (see electrolysis ) caused by the pa age of the current is the decomposition of the solution, the metal being deposited upon the exposed surface at the negative pole, and sulphuric acid being formed at the positive pole; the acid, however, di olves a part of the copperplate, and thus keeps the solution of constant strength. A current of uniform strength is nece ary. Iron and nickel are deposited from solutions of electrometry trometer + -y.] That department artment of the science of electricity which embraces the methods of making electrical measurements, more espe 1. The