Eisco

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US$62.03
This Circular Coil on a Base allows you to to observe static magnetic fields generated by a constant flowing current which affects the disposition of iron filings. A coil of wire through which a current can be passed is mounted on a plastic base and surrounds a sheet on which iron fillings can be placed. 
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US$7.47
Weight (lb)0.2. Length (in)0.4. Width (in)0.3. Height (in)0.2.
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US$62.72
Plates with matrices of 98 small circular chambers contain an iron rod, which functions as effectively as a plotting compass. The transparent plates can be arranged in various ways including as faces of a cube or as a single large two-dimensional surface. This versatility allows you to show the configuration of magnetic fields in one or two dimensions.
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US$36.31
This apparatus allows students to study the magnetic fields around a wire. A heavy brass wire with terminals is arranged on a clear plastic base. Also included are one each 45mm compass and six each 16mm compasses. Dimensions 7" x 3" x 4".
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US$135.92
This advanced apparatus demonstrates both longitudinal and transverse wave motions. Consisting of a number of eccentric discs supporting a series of metal rods revolving on a handle, transverse waves are obtained. Longitudinal waves are obtained from the bent rods.
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US$83.86
Apparatus is designed to show vibrations in a stretched cord and investigate the relationship between frequency, tension and density. In addition the provision of electrical contacts, opened and closed by the vibrating armature, allow the apparatus to be used as a high speed changeover switch.
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US$308.18
The Ripple Tank is a dual purpose vesatile tank allowing all types of waves and wave motion. Supplied in foam packing and consists of the following components: Ripple Tank 40cm x 40cm. Push fit legs. Rippler motor with eccentric cam, mounted on PVC bar. Three supports for illuminator and the motor unit. Motor hanging clamps. Springs for motor support. Lamp Unit Halogen 6 volts. Hand Stroboscope. Concave Perspex Plate. Convex Perspex Plate. Rectangular perspex Plate. Curved Reflector. Barrier Large. Barrier small. Plastic roller Bar.
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US$875.00
More advanced Spectrometer, Easy to set-up and use.Includes grating and holder, prism, illuminated magnifier, auto-collimation mirror, and detailed instruction manual. Supplied in wooden carrying case. This instrument whilst robust enough for individual student use also intended for more advanced work. Scale 150 mm diameter circle is fixed, and the table and telescope movements are completely independent of each other. Both movements can be read to 30 sec. of arc by means of double ended verniers. Both rotations have fine adjustment screws, and release of a clamping screw enables coarse adjustment to be made by hand.
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US$12.59
This is a Wave Form Helix that can be: (1) used as a scientific instrument to measure a wave function (it actually has a higher spring constant than the classic toy); or (2) unleashed down a wicked set of stairs.
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US$73.15
Set Includes: 1 Rectangular Block 75 x 50 x 15mm. 1 Semi-Circle 90mm base x 15mm thick. 1 Equilateral Prism 75mm side, 15mm thick. 1 Double Convex Lense 90mm long, 23mm at center. 2 Double Concave Lenses 90mm long, 10mm at center.
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US$61.59
This apparatus demonstrates the behavior of a bimetallic strip when heat is applied. This unit consists of a bimetallic strip on a 130mm x 80mm x 30mm base. A 12V halogen bulb is mounted right below a metallic strip. The bimetallic strip is heated by the glow of the bulb, which then bends, the circuit breaks and the bulb goes off. Once the bulb cools, the circuit becomes complete, the bulb glows and the sequence is repeated. Sockets are safety sockets.
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US$26.96

This radiometer comprises a partly evacuated glass bulb about 70mm in Diameter mounted on a round base, containing at its centre a fine pivot which supports four light weight metal arms. One side of each vane is blackened , the reverse side is bright. When the light strikes the wings, it transfers the heat to each one, but not at the same degree.

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US$111.30
This is useful for demonstrating the properties of velocity. Demonstrates that the horizontal component of velocity of a body thrown vertically upward from another body moving horizontally is the same as that of the body moving horizontally.
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US$90.00
A platform is supported on spring steel strips which is made to oscillate in the horizontal plane under various loads. Two aluminum trays 130 x 50 mm., held approximately 200mm apart on spring steel strips attached to their sides. One tray has holes to take three equal mass cylinders, approximately 100 x 25 mm, length x diameter. Three support pins to fit radial holes in cylinders.
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US$63.59
The Spouting Cylinder is made of Perspex which gives a clear view of the variation level of liquid and pressure. A spouting cylinder demonstrates that the pressure of a liquid depends on depth/height.
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