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传说世界上享有盛名的意大利斯特拉迪瓦里提琴的秘密在于他把由火山灰制成的水凝性水泥用于制作提琴。为了证实这一点,英国的研究人员巴洛等人用分析电子显微镜观察1711年出品的斯特拉迪瓦里大提琴的琴身,发现在木质和清漆之间有微粒子层,并且发现微粒子的成分多为铜、铁,其次是硅、钙、钾等元素。此外,研究人员还调查了意大利境内的埃特纳火山的红色火山灰,发现大部分为铁、铜成分,接下来是钙、硅、钾,而且光谱十分相似。对上述的研究结果,有人认为是使用浮石研磨
The secret of the legendary Italian Stradivarius, the legendary legend, lies in the fact that he uses hydrated cement made of volcanic ash for making violins. To confirm this, the British researchers Barlow et al. Observed the piano body of the Stella diva cello produced in 1711 with an analytical electron microscope and found that there was a layer of fine particles between the wood and the varnish, and the composition of the particles was found to be large For copper, iron, followed by silicon, calcium, potassium and other elements. In addition, the researchers investigated the red volcanic ash of Mount Etna in Italy and found that most of the iron and copper components, followed by calcium, silicon and potassium, and the spectrum is very similar. The above findings, some people think that is the use of pumice grinding