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<專題討論>2017/3/2(四)14:10綜合大樓2樓48218教室演講「The secrets of Stradivari violins」( 戴桓青 助理教授 / 臺灣大學化學系)

張貼者:2017年3月1日 上午1:12Dabby Lu   [ Ann-Chen Jang 已於 2017年3月6日 下午7:54 更新 ]
The modern violin was invented nearly 500 years ago, but the most famous violins all came from a small town in Italy called Cremona. There were two famous makers in Cremona, Antonio Stradivari (1644-1737) and Giuseppe Guarneri “del Gesu” (1698-1744), who made amazing instruments that all top violinists wanted to play. For the past 200 years, no maker has been able to recreate the magic of Stradivari and Guarneri violins.
In collaboration with Chimei Museum in Tainan, we have investigated the acoustics and wood properties of Stradivari violins. By recording various violins in the Chimei collection, we found that Stradivari violins produced formants (resonance peaks) differently compared to other violins. We also found that the maple wood used by Stradivari had been treated with minerals. After 300 years of aging, the hemicellulose in the wood has undergone natural hydrolysis. The effect of high frequency vibrations has further altered the ultrastructure of wood in Stradivari violin but not his cellos. We believe that the unique properties of wood may contribute to the unique sound of Stradivari violins. .. ..
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Dabby Lu,
2017年3月1日 上午1:12
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