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Prism Glass 60 X 60 X 60 38 Mm (l)

Clear glass equilateral triangular prism made from clear optical glass with optically polished faces.  For educational use. Angles: 60° x 60°

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Reference HE1006931

RRP£12.36

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Your Price £7.10

Prism Glass 60 X 60 X 60 63 Mm (l)

Clear glass equilateral triangular prism made from clear optical glass with optically polished faces. For educational use. Angles: 60° x 60° x 60°.

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Reference HE1006932

RRP£56.85

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Your Price £33.06

Prism Glass 70 X 50mm (hypotenuse X L)

Clear glass triangular prism made from clear white optical glass with optically polished faces. For educational use. Angles: 90° x45° x 45° Refractive index 1.52

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Reference HE1006934

RRP£29.13

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Your Price £14.57

Prism Perspex 35 X 25mm (hypotenuse X L)

Clear Perspex triangular prism with polished faces.  For educational use. Angles: 90° x 45° x 45°. Refractive Index: 1.5 approx. Prism Face Dimensions: 35mm x

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Reference HE1006937

RRP£4.29

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Your Price £3.69

Prism Perspex 60 X 60 X 60 38 Mm (l)

Clear Perspex equilateral triangular prism with polished faces. For educational use. Angles: 60° x 60° x 60°. Refractive Index: 1.5 approx Prism Face Dimensions:

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Reference HE1006935

RRP£9.03

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Your Price £5.23

Prism Perspex 60 X 60 X 60 63mm (l)

Clear Perspex equilateral triangular prism with polished faces.  For educational use. Angles: 60° x 60° x 60° Refractive Index: 1.5 approx. Prism Face

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Reference HE1006936

RRP£9.48

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Your Price £5.45

Ray Optics Box

A ventilated Ray Optics box which is open fronted with extended sides finned externally for heat dissipation and vertical internal grooves to

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Reference HE1522297

RRP£34.98

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Your Price £17.49

Rayzer Lightbox

Bring modern technology into your classroom with this raybox for the 21st century.This unit is for studying ray optics. It contains 3 laser diode

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Reference HE1775808

RRP£272.31

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Your Price £136.16

Rectangular Glass Block 114 X 65 X19mm

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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Reference HE1006925

RRP£13.65

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Your Price £6.83

Replacement Led For Ray Optics Box

Replacement LED bulb for the Battery-Operated Ray Optics Box (B8R06343).

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Reference HE1878007

RRP£16.98

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Your Price £8.49

Set Of 6 Colour Filters

Set of 6 standard colour filters. Orange Marius Red Primary Green Tokyo Blue QFD Blue Violet

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Reference HE1226013

RRP£296.73

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Your Price £148.37

Set Of 6 Colour Filters Mounted 50x50mm

A set of three primary and three secondary colour acetate filters, mounted in plastic frames (50mm x 50mm).Suitable for use in optical boxes etc. While not suitable for

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Reference HE1006949

RRP£76.56

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Your Price £38.28

Set Of Acrylic Blocks

Clear acrylic blocks which are all 15mm thick.  All faces are fully polished. The set comprises 7 blocks in a storage tray as follows:

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Reference HE1003073

RRP£26.85

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Your Price £23.49

Slit Plate Holder For Light Source Kit

Slit plate holders. Pack of 4

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Reference HE1591583

RRP£31.83

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Your Price £15.92

Slit Plate Low Cost Ray Box

Spare Ray Box slit plates suitable for use with the now discontinued Economy Science Ray Box. Dimensions: 45mm x 75mm Pack of 5.

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Reference HE1008228

RRP£9.87

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Your Price £4.94

Slit Slides - Double

For the measurement of the wavelength of light by the observation of 'fringes' produced by the interference between the 2 beams of light, from a common source, passing

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Reference HE1513184

RRP£36.18

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Your Price £18.09

Slit Slides - Single

For the measurement of the wavelength of light by the observation of 'fringes' produced by the interference between the 2 beams of light, from a common source, passing

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Reference HE1513182

RRP£35.37

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Your Price £17.69

Spare Dippers For Ripple Tank

Spare Dipper intended for use with the Economy Ripple Tank (B8R08097).

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Reference HE1878013

RRP£87.63

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Your Price £43.82

Spare Len Cylindrical Double Convex 45mm

Spare 45mm glass double convex cylindrical lens for use with the, now discontinued, Economy Ray Box. Dimensions: (W)45mm x (H)50mm

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Reference HE1008936

RRP£14.73

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Your Price £7.37

Spare Pair Of Plastic Slit Plates

Set of spare slit plates for use with the Light Box and Optical Set (B8A44106). Plate Dimensions: 90mm x 50mm x 3mm Pack Size: 2 plates

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Reference HE1006907

RRP£13.38

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Your Price £6.69

Spare Slit Plates For H77468

Spare Ray Box slit plates, suitable for the Philip Harris Ray Optics Box (B8R06342) & the Battery Operated Ray Box (B8R06343). Dimensions: 50mm x 100mm Pack of 5

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Reference HE1008661

RRP£14.73

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Your Price £7.37

Spectrometer Prism Extra Dense Flint

Spectrometer Prism 60° x 60° x 60°. Extra dense flint glass. Refractive index 1.7 approximately. Optically polished and made from white optical glass Dimensions: 32mm

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Reference HE1580314

RRP£29.82

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Your Price £17.33

Spectrum Tube Holder

This economical special holder allows an external power source to be used for 26cm long spectrum tubes. Fitted with 4mm safety sockets on black panel. This holder is

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Reference HE1473308

RRP£150.81

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Your Price £75.41

Spectrum Tubes - Hydrogen

Spectrum Tube - HydrogenHydrogen gas-filled discharge tube for studying typical spectra of the different gases and for use in calibrating spectrometers. The

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Reference HE1006964

RRP£57.66

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Your Price £28.83