<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dcterms="http://purl.org/dc/terms/">
<rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9811">
    <dcterms:title><![CDATA[discharge tube demonstration]]></dcterms:title>
    <dcterms:description><![CDATA[One of two tubes have a spiral glass feature; presumed to have been acquired as a set with five others]]></dcterms:description>
    <dcterms:date><![CDATA[1897-1910]]></dcterms:date>
    <dcterms:format><![CDATA[glass; wood; metal]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:200123d]]></dcterms:identifier>
    <dcterms:coverage><![CDATA[London (?)]]></dcterms:coverage>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9810">
    <dcterms:title><![CDATA[telescope]]></dcterms:title>
    <dcterms:description><![CDATA[Small brass telescope. Part of something.]]></dcterms:description>
    <dcterms:creator><![CDATA[Unknown]]></dcterms:creator>
    <dcterms:date><![CDATA[1850-1950]]></dcterms:date>
    <dcterms:format><![CDATA[length 195 mm, diam. 25 mm]]></dcterms:format>
    <dcterms:format><![CDATA[metal, glass]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:200701a]]></dcterms:identifier>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9809">
    <dcterms:title><![CDATA[Mercury vapour arc rectifier]]></dcterms:title>
    <dcterms:description><![CDATA[Provides approx. 1200 Volts at a few hundred Amps . One of the largest vacuum tubes. Pool of mercury in the base acts as a cathode, feeding the 3 side-arm anodes, one for each phase of a 3-phase supply. Three intermediate grids provide some control over the large current .]]></dcterms:description>
    <dcterms:creator><![CDATA[unknown]]></dcterms:creator>
    <dcterms:format><![CDATA[mercury]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:200137a]]></dcterms:identifier>
    <dcterms:coverage><![CDATA[unknown]]></dcterms:coverage>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9808">
    <dcterms:title><![CDATA[PC manual for ABDNP201456a]]></dcterms:title>
    <dcterms:description><![CDATA[User&#039;s manual for ABDNP201456a including operating instructions, circuit diagram and supplementary booklets for keyboard and mouse.  In original cardboard case.]]></dcterms:description>
    <dcterms:creator><![CDATA[Elonex]]></dcterms:creator>
    <dcterms:date><![CDATA[1988-1989]]></dcterms:date>
    <dcterms:format><![CDATA[220 mm by 160 mm by 25 mm]]></dcterms:format>
    <dcterms:format><![CDATA[paper]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:201456b]]></dcterms:identifier>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9807">
    <dcterms:title><![CDATA[Eddy current drag]]></dcterms:title>
    <dcterms:description><![CDATA[arch shaped stand with a copper disc and a bar magnet suspended from the top]]></dcterms:description>
    <dcterms:creator><![CDATA[Watkins and Hill]]></dcterms:creator>
    <dcterms:date><![CDATA[1840-1855]]></dcterms:date>
    <dcterms:format><![CDATA[height 480mm]]></dcterms:format>
    <dcterms:format><![CDATA[copper, brass and magnet]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:200089b]]></dcterms:identifier>
    <dcterms:coverage><![CDATA[5 Charing Cross, London]]></dcterms:coverage>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9806">
    <dcterms:title><![CDATA[Leyden jar]]></dcterms:title>
    <dcterms:description><![CDATA[Glass jar with wooden lid; lid handle extends through to bottom of lid with chain attached which hangs into jar.  Jar is painted in conducting material.]]></dcterms:description>
    <dcterms:creator><![CDATA[unknown]]></dcterms:creator>
    <dcterms:date><![CDATA[1840-1899]]></dcterms:date>
    <dcterms:format><![CDATA[height 241 mm; diameter 95 mm]]></dcterms:format>
    <dcterms:format><![CDATA[glass; metal]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:200086a]]></dcterms:identifier>
    <dcterms:coverage><![CDATA[unknown]]></dcterms:coverage>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9805">
    <dcterms:title><![CDATA[Tangent galvanometer]]></dcterms:title>
    <dcterms:description><![CDATA[Has 3 interwound coils forming a vertical loop in the centre of which lies a magnetic pointer and dial on a circular horizontal wooden table.  All are mounted on an ebonite pedestal with three brass adjustable feet.  Six terminals are joined in pairs to the three windings]]></dcterms:description>
    <dcterms:creator><![CDATA[Gruel]]></dcterms:creator>
    <dcterms:date><![CDATA[1880-1910]]></dcterms:date>
    <dcterms:format><![CDATA[220mm dia 300 mm high]]></dcterms:format>
    <dcterms:format><![CDATA[chrome, glass, brass, ebonite]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:200467a]]></dcterms:identifier>
    <dcterms:coverage><![CDATA[Berlin]]></dcterms:coverage>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9804">
    <dcterms:title><![CDATA[sovereign balance]]></dcterms:title>
    <dcterms:description><![CDATA[Said to be attached to model of levers but not present]]></dcterms:description>
    <dcterms:creator><![CDATA[&#039;W. &amp; S. Jones N. 30 Holborn London&#039;]]></dcterms:creator>
    <dcterms:date><![CDATA[1800-1830]]></dcterms:date>
    <dcterms:identifier><![CDATA[ABDNP:200019a]]></dcterms:identifier>
    <dcterms:coverage><![CDATA[London]]></dcterms:coverage>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9803">
    <dcterms:title><![CDATA[Density bottle]]></dcterms:title>
    <dcterms:description><![CDATA[Glass density bottle; etched onto bottle &#039;25 Grammes, 60 F&#039;; in custom-made black-painted tin; packed in cotton wool]]></dcterms:description>
    <dcterms:date><![CDATA[1920-1960]]></dcterms:date>
    <dcterms:format><![CDATA[diameter 50 mm; height 120 mm]]></dcterms:format>
    <dcterms:format><![CDATA[metal; glass; cotton]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:201783b]]></dcterms:identifier>
</rdf:Description><rdf:Description rdf:about="https://exhibitions.abdn.ac.uk/university-collections/document/9802">
    <dcterms:title><![CDATA[large full wave metal rectifier]]></dcterms:title>
    <dcterms:description><![CDATA[Selenium rectifier with black cooling fins.  Every fourth sheet has a hole in one corner while all other corners have been taken off.  The central rod has screw terminals at either end.]]></dcterms:description>
    <dcterms:date><![CDATA[1950-1970]]></dcterms:date>
    <dcterms:format><![CDATA[length 360mm, width 95mm, height 95mm]]></dcterms:format>
    <dcterms:format><![CDATA[metal]]></dcterms:format>
    <dcterms:identifier><![CDATA[ABDNP:201333a]]></dcterms:identifier>
</rdf:Description></rdf:RDF>