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HE1008654HE1008654
Philip Harris Bourdon Gauge Pack of 1 Simple circular gauge used for the measurement of actual (total gaseous) pressure.The dial from reads 0 to 3.4 x 105 Pa actual (total) pressure.The case has a clear Perspex back so that the working parts may be seen.A tubule, 8mm diameter, provides connection to the system under investigation.With n...
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HE1008655HE1008655
Hookes Law Apparatus Pack of 1 The Hooke's Law Apparatus is used to demonstrate that the relationship between the extension on a spring is proportional to the load applied to it. The apparatus consists of a high quality, moveable, 120mm scale that is mounted on a simple stand and base. A combined mass hanger/pointer is provided a...
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HE1008657HE1008657
Philip Harris Demonstration Electric Motor Pack of 1 A model of the simplest form of d.c. electric motor, having a 2-pole armature wound with enamelled copper wire, and a permanent magnetic field provided by a removable magnet. The construction of the model is completely open and all components are readily observable. A disc-type commutator is incor...
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HE1008658HE1008658
Philip Harris Demonstration Dynamo Pack of 1 The Demonstration Dynamo includes 2-pole armature wound with enamelled copper wire, and a permanent magnetic field provided by a removable magnet. The construction of the model is completely open and all components are readily observable. This model is mounted on a 200 x 125mm baseplate, which also ...
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HE1008660HE1008660
Leslie’s Cube Pack of 1 Tinplate box with 100mm sides. The vertical faces of the box are blackened, roughened, varnished and polished respectively. The top opening is fitted with a lid. The apparatus is filled with water and an external infrared sensor (such as a digital infrared thermometer) may be used to compare the rel...
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HE1008661HE1008661
Philip Harris Ray Box Slit Plates - Pack of 5 Pack of 1 Spare Ray Box slit plates, suitable for the Philip Harris Ray Optics Box (B8R06342) & the Battery Operated Ray Box (B8R06343).Dimensions: 50mm x 100mmPack of 5
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HE1008664HE1008664
Double Convex Spherical Lenses: +20D FL:50mm - Pack of 5 Pack of 1 Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes.Diameter: 38mmFocal Length: 50mm,Power: +20DRefractive index: 1.52 approx.Material: Float GlassPack of 5
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HE1008665HE1008665
Double Convex Spherical Lenses: +20D FL:50mm - Pack of 5 Pack of 1 Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 50mmPower: +20DRefractive Index: 1.52.Material: Float GlassPack of 5
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HE1008666HE1008666
Double Convex Spherical Lenses: +10D FL:100mm - Pack of 5 Pack of 1 Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 100mmPower: +10DRefractive index: 1.52 approx.Material: Float GlassPack of 5
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HE1008667HE1008667
Double Convex Spherical Lenses: +6.6D FL:150mm - Pack of 5 Pack of 1 Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 150mmPower: +6.6DRefractive Index: 1.52 approx.Material: Float GlassPack of 5
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HE1008668HE1008668
Double Convex Spherical Lenses: +5D FL:200mm - Pack of 5 Pack of 1 Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 200mmPower: +5DRefractive index: 1.52.Material: Float GlassPack of 5
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HE1008669HE1008669
Double Convex Spherical Lenses: +3.3D - Pack of 5 Pack of 1 Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 300mmPower: +3.3DRefractive index: 1.52 approx.Material: Float GlassPack of 5
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HE1008670HE1008670
Double Convex Spherical Lenses: +2D FL:500mm - Pack of 5 Pack of 1 Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 500mmPower: +2DRefractive index: 1.52 approx.Material: Float GlassPack of 5
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HE1008671HE1008671
Double Concave Spherical Lenses: -20D - Pack of 5 Pack of 1 Spherical Lenses: Double ConcaveWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal length: 50mmPower: -20DRefractive Index: 1.52 approx.Material: Float GlassPack of 5
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HE1008672HE1008672
Double Concave Spherical Lenses: -10D - Pack of 5 Pack of 1 Spherical Lenses: Double ConcaveWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 100mmPower: -10DRefractive Index: 1.52 approx.Material: Float GlassPack of 5
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HE1008674HE1008674
Double Concave Spherical Lenses: -5D FL:200mm - Pack of 5 Pack of 1 Spherical Lenses: Double ConcaveWith optically worked faces and ground edges, for educational purposes.Diameter: 50mmFocal Length: 200mmPower: -5DRefractive index: 1.52 approx.Material: Float GlassPack of 5
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HE1008675HE1008675
Lenses: Plano-Convex +7D FL:140mm - Pack of 5 Pack of 1 Plano-Convex Lenses made from clear glass with ground edges & optically worked faces, for educational purposes.Diameter: 50mmFocal Length: 140mmPower: +7DRefractive Index: 1.52 approx.Material: Float GlassPack of 5
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HE1008676HE1008676
Lenses: Plano-Cylindrical +7D - Pack of 5 Pack of 1 Plano-Cylindrical Lenses made from clear glass with ground ends and optically worked faces, for educational purposes.Dimensions: 50mm x 50mm.Power: +7DMaterial: Float GlassPack of 5Plano-Cylindrical Lenses: 50mm, +10 Pack of 5 also available (B8L27303).
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HE1008677HE1008677
Lenses: Plano-Cylindrical +10 - Pack of 5 Pack of 1 Plano-Cylindrical Lenses made from clear glass with ground ends and optically worked faces, for educational purposes.Dimensions: 50mm x 50mm.Power: +10DMaterial: Float GlassPack of 5Plano-Cylindrical Lenses: +7D - Pack of 5 also available (B8L27297).
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HE1008701HE1008701
Philip Harris Decade Resistance Unit Pack of 1 For use as an accurate potential divider, ratio arm etc. This unit employs high stability metal film resistance elements having superior characteristics to traditional wire wound coils. It is equally suitable for a.c. or d.c. use. The individual decades are series connected, each having switched pos...
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