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Small, sounding, moving loudspeakers are used to explore the acoustic properties of the well, and portray it as an acoustic chamber. | Small, sounding, moving loudspeakers are used to explore the acoustic properties of the well, and portray it as an acoustic chamber. | ||
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Two possibilities: | Two possibilities: | ||
[[Media:brunnen1_english.jpg]] | [[Media:brunnen1_english.jpg]] | ||
[[Media:brunnen2_english.jpg]] | [[Media:brunnen2_english.jpg]] | ||