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                    <text>Diagonal machine. A small square wooden frame, about a foot wide. A slightly smaller frame slides horizontally out. A brass ball on a string and attached to a pulley on the smaller frame moves diagonally upwards as the frame is slid horizontally.</text>
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                <text>Diagonal machine. A small square wooden frame, about a foot wide. A slightly smaller frame slides horizontally out. A brass ball on a string and attached to a pulley on the smaller frame moves diagonally upwards as the frame is slid horizontally.</text>
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                <text>ABDNP:201403a</text>
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                <text>Demonstration originated by James Ferguson to illustrate that the sum of compound motions at right angles produce a diagonal displacement. Wooden frame sliding element holding with brass ball on rod that slides up rod as frame is moved sideways. Disk "Univ. Abdn. Nat. Phil."</text>
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            <description>An entity primarily responsible for making the resource</description>
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                <text>Patrick Copland</text>
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            <name>Date</name>
            <description>A point or period of time associated with an event in the lifecycle of the resource</description>
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                <text>1780-1790</text>
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            <description>The file format, physical medium, or dimensions of the resource</description>
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                <text>wood, brass, string&#13;
255 mm wide, 75 mm deep, height 225 mm</text>
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            <name>Type</name>
            <description>The nature or genre of the resource</description>
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                <description>A name given to the resource</description>
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                    <text>Insulating stand. A thin brass disc about 15 centimetres wide on a glass pillar with a turned wooden base.</text>
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                <text>Insulating stand. A thin brass disc about 15 centimetres wide on a glass pillar with a turned wooden base.</text>
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            <name>Identifier</name>
            <description>An unambiguous reference to the resource within a given context</description>
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                <text>ABDNP:201397a</text>
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                <text>Wooden base with glass pillar and brass table for electrostatic experiments.</text>
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                <text>circa 1800</text>
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                <text>wood, glass, brass&#13;
base diameter 125 mm, table diameter 155 mm, height 215 mm</text>
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                    <text>Anamorphic drawings. Four coloured drawings on paper discs with a tall curved mirror placed at the centre: a butterfly, a man on a horse, a bust of a man's head, and two men arguing; the drawings appear normal in the mirror but are stretched out and curved on the paper.</text>
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            <description>A name given to the resource</description>
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                <text>Anamorphic drawings. Four coloured drawings on paper discs with a tall curved mirror placed at the centre: a butterfly, a man on a horse, a bust of a man's head, and two men arguing; the drawings appear normal in the mirror but are stretched out and curved on the paper.</text>
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            <description>An unambiguous reference to the resource within a given context</description>
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                <text>ABDNP:200412a, 201396a</text>
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            <description>An account of the resource</description>
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                <text>A hemispherical polished speculum cylinder mounted in a wood pillar case with brass small handle. Tin-plate storage case. Ivory maker's plate inlaid into pillar. Accompanied by a selection of early 19th century anamorphic drawings.&#13;
&#13;
6 anamorphic drawings on circular sheets of waxy paper. Small hole in centre of sheets:&#13;
1) drawing of person in yellow cravat chained to a rock speaking with man in green jacket. Characters not yet identified.&#13;
2) blue, yellow and black drawing of (swallow-tail?) butterfly&#13;
3) Black and white drawing of Napoleon(?) on horseback, most of diagram black inked&#13;
4) Black and white drawing of bust (could it be Wellington?, not yet checked)&#13;
5) Leaf-based pattern more black than white&#13;
6) Coloured drawings around 360 degrees of flowers on black ground</text>
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            <name>Creator</name>
            <description>An entity primarily responsible for making the resource</description>
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                <text>mirror: W &amp; S Jones, London</text>
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            <name>Date</name>
            <description>A point or period of time associated with an event in the lifecycle of the resource</description>
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                <text>mirror: 1790-1820&#13;
drawings: 1810-1830</text>
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            <name>Format</name>
            <description>The file format, physical medium, or dimensions of the resource</description>
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                <text>mirror:&#13;
speculum metal (copper, tin and arsenic alloy), wood&#13;
box - 145mm high x 85mm x 50mm box&#13;
&#13;
drawings:&#13;
paper, paint&#13;
diameter 205 mm&#13;
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            <description>The nature or genre of the resource</description>
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                <text>Physical Object</text>
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                <name>Title</name>
                <description>A name given to the resource</description>
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                    <text>Suction pump. A glass tube with a small brass fitting covering the top and a larger one on the bottom. Hinged on to the bottom fitting is a brass plunger with the end wrapped in fabric, operated with a lever. A small pipe also projects from the bottom fitting.</text>
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              <description>A name given to the resource</description>
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            <description>A name given to the resource</description>
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                <text>Suction pump. A glass tube with a small brass fitting covering the top and a larger one on the bottom. Hinged on to the bottom fitting is a brass plunger with the end wrapped in fabric, operated with a lever. A small pipe also projects from the bottom fitting.</text>
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            <name>Identifier</name>
            <description>An unambiguous reference to the resource within a given context</description>
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                <text>ABDNP:200535a</text>
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          <element elementId="41">
            <name>Description</name>
            <description>An account of the resource</description>
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                <text>Wooden box containing demonstration suction pump in two parts; glass barrel illustrates operation of two valves, one at base of barrel and one in piston; instrument sits on velvet cloth and there seem to be space for other instrument. Matches item in Copland's 1822 inventory.</text>
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            <description>A point or period of time associated with an event in the lifecycle of the resource</description>
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                <text>1790-1905</text>
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            <name>Format</name>
            <description>The file format, physical medium, or dimensions of the resource</description>
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                <text>wood, textile, brass, glass&#13;
Box: length 355 mm; width 190 mm; height 105 mm</text>
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            <name>Type</name>
            <description>The nature or genre of the resource</description>
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                <text>Physical Object</text>
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          <element elementId="50">
            <name>Title</name>
            <description>A name given to the resource</description>
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                <text>Discharging tongs. Two metal rods with balls on the end fixed to a glass rod with a wooden handle. The metal rods are mounted on wheels allowing them to be rotated together or apart.</text>
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          </element>
          <element elementId="43">
            <name>Identifier</name>
            <description>An unambiguous reference to the resource within a given context</description>
            <elementTextContainer>
              <elementText elementTextId="87733">
                <text>ABDNP:200471a</text>
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            </elementTextContainer>
          </element>
          <element elementId="41">
            <name>Description</name>
            <description>An account of the resource</description>
            <elementTextContainer>
              <elementText elementTextId="87734">
                <text>twin brass rods hinged at one end fitted on a glass insulating rod and wooden handle. Each rod terminates in a brass sphere; for removal of charge from electrostatically charged spheres. Likely to be one of Copland's "Discharging rod, jointed, glass handle" two of which are mentioned in the 1823 inventory.</text>
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          </element>
          <element elementId="40">
            <name>Date</name>
            <description>A point or period of time associated with an event in the lifecycle of the resource</description>
            <elementTextContainer>
              <elementText elementTextId="87735">
                <text>1780-1810</text>
              </elementText>
            </elementTextContainer>
          </element>
          <element elementId="42">
            <name>Format</name>
            <description>The file format, physical medium, or dimensions of the resource</description>
            <elementTextContainer>
              <elementText elementTextId="87736">
                <text>brass, glass, wood&#13;
550 mm long, glass rod 15 mm diameter</text>
              </elementText>
            </elementTextContainer>
          </element>
          <element elementId="51">
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            <description>The nature or genre of the resource</description>
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                <text>Physical Object</text>
              </elementText>
            </elementTextContainer>
          </element>
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                <description>A name given to the resource</description>
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                    <text>Oscillating prism. A small glass prism connected to a brass mechanism with a crank.</text>
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              <description>A name given to the resource</description>
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                  <text>Copland Teaching Apparatus</text>
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                <text>Oscillating prism. A small glass prism connected to a brass mechanism with a crank.</text>
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            <description>An unambiguous reference to the resource within a given context</description>
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                <text>Equiangular triangular prism, 13 mm side x 43 mm long (incl. brass ends) setting vertically on base made to oscillate 6 times for every rotation of an ivory handle. Could be the device mentioned in Copland's inventory. The design is very similar to the illustrations of C.R. Alder Wright</text>
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                <text>1790-1890</text>
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                <text>glass, brass, ivory&#13;
width 65 mm; depth (incl. handle) 52 mm; height 160 mm</text>
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                <text>McCulloch's mariner's compass. A large compass consisting of a wide ring of card printed with directions and a degree scale, covered with glass and fixed on a steel strip screwed to a conical projection underneath. The compass is on a brass gimbal mount in a wooden box. </text>
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                <text>McCulloch's patent compass in oak box without lid. Card marked in degrees, in quadrants . Embedded brass disc inside box ' Univ. Abdn. Nat. Phil. ' In single gimbals. Patent No 1663 (1788). One of only a few in museums throughout the world.</text>
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                <text>McCulloch, compass maker, London</text>
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            <description>A point or period of time associated with an event in the lifecycle of the resource</description>
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                <text>1792</text>
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                <text>wood, brass, iron&#13;
box: 262 mm square, height 170 mm; diameter of bowl 170 mm</text>
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                <name>Title</name>
                <description>A name given to the resource</description>
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                    <text>Azimuth compass. A compass with a rotatable ring-shaped brass frame around it mounted on a heavy brass stand. The frame is marked with degree scales. Four removable rectangular plates of brass, each with a rectangular hole, a slit and three small circular holes in them, project vertically from the frame equidistant from one another.</text>
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            <description>An unambiguous reference to the resource within a given context</description>
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                <text>ABDNP:200369a</text>
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                <text>Azimuth compass in wooden box with lid and lock and key . Brass scales. 4 sights are detachable - 2 fit on rotating compass ring and 2 on meridional line. Each sight has a slit and a cross wire one above the other. Box has inset disc ' Univ. Abdn. Nat. Phil. ' The compass is calibrated 0°-360° in an anti-clockwise direction (steps are1.0°). The main azimuth scale has&#13;
an outer scale 0° - 360° in steps of 1° clockwise an adjoined scale 360° - 0° in steps of 0.5° anticlockwise an inner non-uniform scale - the sector has the same scale in 4 octants&#13;
with 0 at 45° and 315° positions with labeling 'shadow' near 0 marks. The S sector has 4 octants marked 0-10-0-10-0 starting at E with 0 at 90°, 180°, 270° points and 10 at 135° and 225° positions - divisions slightly closer nearer 10.</text>
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            <name>Creator</name>
            <description>An entity primarily responsible for making the resource</description>
            <elementTextContainer>
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                <text>Dudley Adams, London</text>
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                <text>1790-1817</text>
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                <text>brass, glass, paper&#13;
175mm x 180mm x 65mm</text>
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              </elementText>
            </elementTextContainer>
          </element>
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            <name>Title</name>
            <description>A name given to the resource</description>
            <elementTextContainer>
              <elementText elementTextId="87716">
                <text>Azimuth compass. A compass with a rotatable ring-shaped brass frame around it mounted on a heavy brass stand. The frame is marked with degree scales. Four removable rectangular plates of brass, each with a rectangular hole, a slit and three small circular holes in them, project vertically from the frame equidistant from one another.</text>
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                <description>A name given to the resource</description>
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                    <text>Arnold's compensated escapement model. A large brass and iron contraption, on a wooden base, consisting of a wheel with two arcs of metal terminating in brass balls around the outside, on an axel with another smaller brass wheel. Underneath is another axel with a toothed wheel and a small wooden barrel on it. An irregularly bent strip of metal curls over the top axel.</text>
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              <description>A name given to the resource</description>
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            <description>A name given to the resource</description>
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                <text>Arnold's compensated escapement model. A large brass and iron contraption, on a wooden base, consisting of a wheel with two arcs of metal terminating in brass balls around the outside, on an axel with another smaller brass wheel. Underneath is another axel with a toothed wheel and a small wooden barrel on it. An irregularly bent strip of metal curls over the top axel.</text>
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            <description>An unambiguous reference to the resource within a given context</description>
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                <text>ABDNP:200364a</text>
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            <description>An account of the resource</description>
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                <text>Arnold's compensated escapement - demonstration of his patent No. 1328. A brass escapement on a wooden base.</text>
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            <name>Creator</name>
            <description>An entity primarily responsible for making the resource</description>
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                <text>John King</text>
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                <text>1781-1789</text>
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                <text>brass, wood, iron, spring metal&#13;
overall height 228 mm; base width 230 mm; depth 180 mm</text>
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            <description>The nature or genre of the resource</description>
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                <description>A name given to the resource</description>
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                    <text>Clock movement. A small brass contraption consisting of wheels, cogs, plates, and a spring.</text>
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                <text>Clock movement. A small brass contraption consisting of wheels, cogs, plates, and a spring.</text>
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                <text>ABDNP:200358a</text>
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            <description>An account of the resource</description>
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                <text>Spring clock and movement for demonstrating the reduction of sound in vacuum; pounds 6.6.0. Brass. Some form of 'scale' behind escapement wheel, part of an old compass dial, although no pointer evident. Fancy key, handle heart-shaped and engraved on both sides with floral designs. Mainspring broken.</text>
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              <elementText elementTextId="87697">
                <text>C. Lunan</text>
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                <text>1815</text>
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