Scientific & Medical Objects

Group of Physical Demonstration Models, c. 1900 First Image

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Group of Physical Demonstration Models, c. 1900 First Image

Group of Physical Demonstration Models, c. 1900

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Group of Physical Demonstration Models, c. 1900 (1 of 5)

Group of Physical Demonstration Models, c. 1900 Group of Physical Demonstration Models, c. 1900 1) Wimshurst's influence machine, Trüb, Fierz & Cie., Zurich, height 14 ½ in., complete, rubber straps need to be renewed. - 2) 8 chromic acid

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4 Interesting Physical Demonstration Models, c. 1900 (1 of 3)

4 Interesting Physical Demonstration Models, c. 1900 4 Interesting Physical Demonstration Models, c. 1900 1) Ebert's phosphorescent lamp with 2 electrodes. – 2) Crookes' apparatus for experiments on radiant matter. – 3) Crookes' radiometer. – And:

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Ampère Table, c. 1900 (1 of 1)

Ampère Table, c. 1900 Ampère Table, c. 1900 Physical demonstration model, used for experiments on the relationship between magnetic fields and electric currents, probably France, with pole changer, overall height 15 3/4 i

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Electromagnetic Motor with Geissler Tube, c. 1900 (1 of 1)

Electromagnetic Motor with Geissler Tube, c. 1900 Electromagnetic Motor with Geissler Tube, c. 1900 Physical demonstration model, for tubes up to 6 in., overall height 8 in. Elektromagnetischer Motor mit Geißler'scher Röhre, um 1900 Physikalisches

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Group of Vacuum Tubes, c. 1915 (1 of 1)

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Physical Demonstration Apparatuses, c. 1900 (1 of 3)

Physical Demonstration Apparatuses, c. 1900 Physical Demonstration Apparatuses, c. 1900 1) Magdeburg hemispheres, brass, with 2 handles. – 2) Windlass, machine model, brass worm and gear wheels, with handcrank. – 3) Pyrometer, for d

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4 Physical Demonstration Models, c. 1910 (1 of 1)

4 Physical Demonstration Models, c. 1910 4 Physical Demonstration Models, c. 1910 1) Reflection and refraction apparatus by "Max Kohl, Chemnitz". – 2) Filament lamp on wooden stand. – 3) Voltmeter by "Radiguet à Paris", brass. – And:

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2 Physical Demonstration Models, c. 1910 (1 of 1)

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6 Physical Demonstration Models, c. 1910 (1 of 1)

6 Physical Demonstration Models, c. 1910 6 Physical Demonstration Models, c. 1910 1) 2 Leyden jars, height 15 and 20 ½ in. – 2) Discharger, with 2 ebonite handles and hinge. – And: 3) 3 conductors on glass pillars, one by Robert Droste

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2 Electrostatic Induction Demonstration Models, c. 1900 (1 of 1)

2 Electrostatic Induction Demonstration Models, c. 1900 2 Electrostatic Induction Demonstration Models, c. 1900 Glass balls with hanging gold strips, conductors on the top, height 7 ½ and 9 7/8 in. 2 Demonstrationsmodelle "Influenz-Elektrizität", um 1900

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Bell Telephone Demonstration Model, c. 1900 (1 of 1)

Bell Telephone Demonstration Model, c. 1900 Bell Telephone Demonstration Model, c. 1900 Manufacturer: E. Leybold's Nachfolger, Coeln-Rhein. Open-works telephone model for demonstrating the mechanism, on mahogany base, very good original condit

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3 Electro-Physical Demonstration Models, c. 1915 (1 of 1)

3 Electro-Physical Demonstration Models, c. 1915 3 Electro-Physical Demonstration Models, c. 1915 1) Stand with 2 copper spirals separated by a glass cylinder, with an incandescent lamp, height 13 in. - 2) Kolbe's electrometer, aluminum, standard b

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2 Physical Demonstration Instruments, c. 1900 (1 of 1)

2 Physical Demonstration Instruments, c. 1900 2 Physical Demonstration Instruments, c. 1900 1) Aluminum plate electrometer by A. Pichler's Wwe, Vienna. Brass, height 10 ½ in. - And: 2) Ohmmeter by Chauvin & Arnoix, Paris. No. 696, in wood c

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Group of Scientific Instruments (1 of 7)

Group of Scientific Instruments Group of Scientific Instruments Physical demonstration models and others: 5 various Crookes cathode ray tubes, 1 x-ray tube (defective), 15 glass valves, 4 stands, 3 Leyden jars, 2 glass tubes with me

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Twin-Cylinder Rack-Balancing Steam Engine with Boiler House, c. 1900 (1 of 4)

Twin-Cylinder Rack-Balancing Steam Engine with Boiler House, c. 1900 Twin-Cylinder Rack-Balancing Steam Engine with Boiler House, c. 1900 Demonstration model of a pumping station, engraved on plaque: "Bateman & Sharratt, Rack Engine 60 H.P., Manchester Eng, 1794 to 182

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2 Physical Demonstration Models with 9 Geissler Tubes, (1 of 3)

2 Physical Demonstration Models with 9 Geissler Tubes,2 Physical Demonstration Models with 9 Geissler Tubes, c. 1910 1) Stand with turning star and 3 tubes with uranium spirals. – And: 2) Isolated stand with 6 tubes of different shape and color, 2 of t

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2 Dynamo-Electric Machines, c. 1910 (1 of 1)

2 Dynamo-Electric Machines, c. 1910 2 Dynamo-Electric Machines, c. 1910 Physical demonstration models, 1 by Masquellier, Anvers, handcrank-driven, cast-iron wheels, on wooden boards, heights 12 ½ in. and 16 ½ in. 2 dynamoelektrische M

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Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890 (1 of 4)

Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890 Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890 Physical demonstration model, 1:163 million scale, bronzed cast metal and brass, with hand-turned mechanism, the sun as a candle without reflec

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Tellurium and Lunarium by Jan Felkl, Prague, c. 1880 (1 of 1)

Tellurium and Lunarium by Jan Felkl, Prague, c. 1880 Tellurium and Lunarium by Jan Felkl, Prague, c. 1880 Physical demonstration model, signed on the earth globe: "Die Erde, Prag bei J. Felkl, No. 1", bronzed cast metal and lacquered brass, 2 1/3 in. pl

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Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890 (1 of 3)

Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890 Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890 Physical demonstration model, 1:163 million scale, bronzed cast metal and brass, with hand-turned mechanism, the sun as a candle with reflector

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Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890 (1 of 1)

Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890 Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890 Physical demonstration model, two electro-magnets, on brass pillar, with wood and brass holder and original Geissler tube, for creating a da

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Electro-Magnetic Motor with Rotating Geissler Tube, c. (1 of 1)

Electro-Magnetic Motor with Rotating Geissler Tube, c.Electro-Magnetic Motor with Rotating Geissler Tube, c. 1915 Physical demonstration model, height 9 7/8 in., tube length 10 1/5 in., good condition, untested. Elektromagnetischer Motor mit rotieren

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Large Electro-Magnetic Motor with Rotating Geissler (1 of 1)

Large Electro-Magnetic Motor with Rotating Geissler Large Electro-Magnetic Motor with Rotating Geissler Tube, c. 1910 Physical demonstration model, height 18 ¼ in., for tubes of up to 15 3/4 in. length, brass and steel, on walnut base, later tube, ve

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Electric Motor with 10 Geissler Tubes, c. 1910 (1 of 3)

Electric Motor with 10 Geissler Tubes, c. 1910 Electric Motor with 10 Geissler Tubes, c. 1910 Physical demonstration model with rotating Geissler tubes, on brass pillar and walnut base, height 7 ½ in., with 10 tubes of various shapes and colors.

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