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UFO

29 Feb 2012 15:14



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am gasit si ceva interesant, o ipoteza despre celebrele viori Stradivarius, ce ar fi avut calitati superioare tocmai datorita micii ,,ere glaciare". Daca ideea se dovedeste corecta, muzicienii (constructorii de viori) vor fi cu siguranta unii dintre cei mai fericiti, in decadele urmatoare.

 We propose an alternative hypothesis based on the unique climate situation that existed between AD 1645–1715 known as the Maunder Minimum. This period of reduced solar activity was noted also for its lowered temperatures, which therefore caused reductions in tree growth rates. We hypothesize that the longer winters and cooler summers produced wood that had slower, more even growth, desirable properties for producing higher-quality sounding boards. During Stradivari's latter decades, he used spruce wood that had grown mostly during the Maunder Minimum. These lowered temperatures, combined with the environmental setting (i. e., topography, elevation, and soil conditions) of the forest stands from where the spruce wood was obtained, produced unique wood properties and superior sound quality. This combination of climate and environmental properties has not occurred since Stradivari's “Golden Period.”

de aici http://www.sciencedirect.com/science/article/pii/S1125786504700314