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| | Articles - Piano (Site not responding. Last check: 2007-10-16) |
 | | duplex scaling, invented by Theodore Steinway in 1872, permits the parts of the string near its ends, which otherwise would be damped with cloth, to vibrate freely, thus increasing resonance and adding to the richness of the sound. |
 | | World War II brought about plastics which were originally incorporated into some pianos in the 1940s and 1950s, but were clearly disastrous, crystallizing and losing their strength after only a few decades of use. |
 | | The Steinway firm once incorporated Teflon, a synthetic material developed by DuPont, for some grand action parts in place of cloth, but ultimately abandoned the experiment due to an inherent "clicking" which invariably developed over time. |
| www.nanriver.com /articles/Piano (4176 words) |
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