Galvanic
Galvanic
Galvanic (/ɡælˈvænɪk/), derived from the name of Italian scientist Luigi Galvani, refers to the direct current of electricity, particularly when produced by chemical action. It is also used to describe the effects or production of such a current.
Etymology
The term "galvanic" is named after Luigi Galvani, an Italian physician, physicist, and philosopher who is recognized for his pioneering work in bioelectricity. Galvani discovered in 1780 that the muscles of dead frogs' legs twitched as if alive when struck by an electrical spark.
Related Terms
- Galvanic Cell: A galvanic cell, or voltaic cell, named after Luigi Galvani and Alessandro Volta respectively, is an electrochemical cell that derives electrical energy from spontaneous redox reactions taking place within the cell.
- Galvanic Corrosion: Galvanic corrosion is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte.
- Galvanic Skin Response: Galvanic Skin Response (GSR) is a method of measuring the electrical conductance of the skin, which varies with its moisture level. This is of interest in psychology due to its relation with the body's stress response.
- Galvanic Series: The galvanic series (or electropotential series) determines the nobility of metals and semi-metals. When two metals are submerged in an electrolyte, while also electrically connected, then metal atoms from the anode will dissolve and deposit on the cathode.
- Galvanic Isolation: Galvanic isolation is a principle of isolating functional sections of electrical systems to prevent current flow; no direct conduction path is permitted. Energy or information can still be exchanged between the sections by other means, such as capacitance, induction or electromagnetic waves, or by optical, acoustic or mechanical means.
- Galvanic Vestibular Stimulation: Galvanic Vestibular Stimulation (GVS) is a method used in scientific research to manipulate the sense of balance.
External links
- Medical encyclopedia article on Galvanic
- Wikipedia's article - Galvanic
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