Galvanizing protects in two ways: 1  It forms a coating of corrosion-resistant zinc which prevents corrosive substances from reaching the more delicate part of the metal. 2  The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.he earliest known example of galvanizing of iron, encountered by Europeans is found on 17th century Indian armor in the Royal Armouries Museum collection. It was named in English via French from the name of Italian scientist Luigi Galvani.
Keyboard and pedals. Almost every modern piano has 88 keys (seven octaves and a bit, from A0 to C7). Many older pianos only have 85 (from A0 to A6), while some manufacturers extend the range further in one or both directions.
Vertical pianos all have similar lengths and widths, so the main difference between the models is the height. Although the dimensions vary slightly from instrument to instrument, most vertical pianos are about 5 feet wide and 2 to 2 1/2 feet deep.Allot a 5-foot-by-5-foot floor space for a vertical piano and its bench.ave. The term upright piano refers to a particular type of instrument -- the tallest type of vertical piano, at least 47 inches high and sometimes as tall as 60 inches. People today often use the term to refer to any sort of piano that isn't a grand; these come in a range of sizes and are called vertical pianos..