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Immersion Heater: 12V 50W Pack of 1 A fully sheathed miniature 12V, 50W (nominal) heater specially developed for use with metal block calorimeters.The element is housed in a 150mm x 11mm stainless steel tube, the heated section occupying 70mm from the closed end. Electrical connection is via 300mm flying leads with heat resisting insu...
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Thermal Conductivity of Metals Apparatus Pack of 1 Comprising bars of copper, iron, aluminium and brass with nominal thermal conductivities of 395, 72, 240 and 128 Wm-1K-1 respectively, each 80mm x 20mm x 1.5mm, provided with a hollow for wax and mounted on a wooden ring.Outside diameter: 130mmInside diameter: 80mm
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Convection in Water Apparatus Pack of 1 Comprising a 360mm x 210mm rectangle of 22mm diameter glass tubing.In use, the tube is mounted vertically in a retort stand. Convection currents may be generated by gently heating one of the lower corners of the rectangle, and a small amount of potassium manganate(VII) crystals dropped into the tubu...
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Solar Motor Pack of 1 Precision low inertia motor with very low starting current, ideal for low power applications including solar cells and modules. Rotation is clockwise as viewed from shaft end. Disc varistor incorporated for EMC noise reduction.Dimensions: 24.3mm Dia. x 12.8mm high.Shaft length 6.0mm x 2.0mm dia.We...
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Solar Cell - 400mA - 75mm x 45mm Pack of 1 Solar Cell:Current (Max): 400mADimensions: 75mm x 45mmOutput Voltage: 0.45V in clear sunlight.They may be linked in series/parallel for increased power.
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Solar Cell - 800mA - 95mm x 65mm Pack of 1 Solar Cell:Current (Max): 800mADimensions: 95mm x 65mmOutput voltage 0.45V in clear sunlight.They may be linked in series/parallel for increased power.
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eisco Solar Furnace Pack of 1 For demonstrating the high temperatures that may be generated by focusing sunlight in an appropriate manner, and illustrating an 'alternative' method of heating. The apparatus consists essentially of a rear aluminised parabolic mirror, 305mm diameter x 185mm focal length, and a matt black copper rec...
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Steel Spring: Narrow - 10m Extension Pack of 1 Narrow Steel spring ideal for transverse wave motion experiments showing standing waves through interference between two waves, reflection of waves and the inversion of the pulse, and the relationships between the initiating pulse, pulse length, wave speed, amplitude and frequency.Spring Diameter: 2...
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Large Rectangular Tank with Wave Generator Pack of 1 For refraction, reflection and wave demonstrations. The tank is transparent, long and narrow to give an adequate path length for wave experiments. A wave generator in the form of a plastic block with handle is provided.Dimensions: 600mm x 75mm x 200mm.
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Ray Box Slit Plates - Pack of 2 Pack of 1 Set of spare slit plates for use with the Light Box and Optical Set (B8A44106).Plate Dimensions: 90mm x 50mm x 3mmPack Size: 2 plates
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Light Box Pack of 1 Light box, with formers for a collimating lens and slit plates. This ray box is versatile and allows all colour mixing experiments due to the hinged mirrors provided. Comprises of a bright halogen lamp, with 4mm sockets.Includes a pair of slit platesSupplied without filters.Requires a 12V power supp...
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Plastic Double Sided Flexible Mirrors - 75mm x 25mm - Pack of 10 Pack of 1 Double-sided plastic plane mirrors with high quality mirror finish. These mirrors are flexible, unbreakable and can be cut into different shapes. They are ideal for use by children. They can be taped together for multiple reflections. Both sides are covered with a protective film. Uses include ...
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Unmounted Glass Mirrors - Plane - 75x25mm - Pack of 10 Pack of 1 Unmounted Plane Glass Mirrors - 75mm x 25mmSilvered back with protective coating.Dimensions: 75mm x 25mmThickness: 2mmPack of 10
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Unmounted Glass Mirrors -Plane - 100x75mm - Pack of 10 Pack of 1 Unmounted Plane Glass Mirrors - 100mm x 75mmSilvered back with protective coating.Dimensions: 100mm x 75mmThickness: 2mmPack of 10
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Unmounted Glass Mirrors - 150x50mm - Pack of 10 Pack of 1 Unmounted Plane Glass Mirrors - 150mm x 50mmSilvered back with protective coating.Dimensions: 150mm x 50mmThickness: 2mmPack of 10
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Philip Harris Plane Glass Mirror - Mounted - 75 x 25mm Pack of 1 Mounted Plane Glass Mirror - 75mm x 25mmSilvered back with protective coatingMounted on a painted wooden block, 20mm thick.Dimensions: 75mm x 25mm
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Philip Harris Plane Glass Mirror - Mounted - 100 x 75mm Pack of 1 Mounted Plane Glass Mirror - 100mm x 75mmSilvered back with protective coatingMounted on a painted wooden block, 20mm thickDimensions: 100mm x 75mm
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Symmetry Mirror Pack of 1 A simple but effective device for demonstrating the symmetrical nature of plane surface reflection. It consists of a tinted Perspex screen, 150 x 100mm, provided with side supports. If the mirror is placed on a sheet of paper with an object in front of it, the reflected virtual image is seen in the ...
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Rectangular Glass Block Pack of 1 Rectangular block made from high quality glass with optically worked surfaces. All angles are accurately worked.Dimensions: 114mm x 65mm x 19mm
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Rectangular Perspex Block Pack of 1 Rectangular clear Perspex block.  Useful for Ray Optics experiments.  All faces are fully polished.Dimensions: 115mm x 65mm x 20mm
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