<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">quincke&apos;s tubes</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31307693</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:22:48</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">quincke&apos;s tube</dcterms:alternative> <dcterms:alternative xml:lang="en">tubes, quincke&apos;s</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ Instruments used to demonstrate the interference of sound, consisting of two U-tubes, one sliding into the other, with a Galton's whistle at one intersection of the tubes and a sensitive flame at the other. Air passes through the two bends of the tube to meet at the flame, and the flicker is analyzed against a scale on one of the tubes. ]]></dc:description></metadata>