Interesting Facts about Piano

These is interesting facts about piano...

• The Piano was invented in 1698 by an Italian, Bartolomeo Cristofori.

• There are over 12,000 parts in a piano, 10,000 which are moving.

• There is approximately 18 tons of pressure being exerted by the stretched steel piano strings. In a concert grand, it is close to 30 tons of pressure. The average string having about 160 pounds of tension. There are 230 strings inside a typical piano.

• The action of a grand is superior in many ways to a vertical piano, one being that any key can be repeated (reset) faster than any vertical upright (regardless of the name given by manufacturers i.e.: upright grand, studio grand, inverted grand, etc.).

• If all of the strings were of the same thickness and under the same tension, with high C being the usual two inches, low C would have to be about thirty feet long. For this reason, lower strings are weighted by wrapping copper or iron wire around the core wire. The lowest octave having two wrappings.

• If a piano hammer were attached directly to the back end of a key, when the key was depressed, the hammer would hit the string and stay there, damping out all vibration and sound. For this reason, all piano actions have some kind of escapement mechanism for each key, allowing the hammer to be released from the key just before hitting the string. When the key is released, the action returns to its original position and resets itself for another cycle.

 Source:http://www.kenfoster.com/PianoTuning/Facts.html