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A flat glass plate and a slightly convex lens of 50 mm diameter Are placed in a metal frame with three pressure adjusting screws to produce Newtons Rings.
For demonstrating that white light may be composed from all the spectral colours by rotation of the multi coloured disk. Comprising of a 200mm disc, and driven by gears with the help of driving wheel fitted with a handle can be clamped to a desk.
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
For the rapid examination of spectral composition of white light, metal tube with draw out focusing and an adjustable slit fitted with a chromatic objective glass and 3 element prism. Complete in wooden box.
Housed in black metal body, specially molded spectrum tube sockets enable the tube to be placed in position easily and also provides protection against electrical contact. Bottom socket is spring loaded for easy tube
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
This liquid is non-toxic liquid paraffin containing a UV sensitive photochromic dye. Indoors it appears as a clear liquid but when exposed to natural light it immediately becomes coloured. This colour increases in intensity when exposed to direct
A range of encapsulated solar cell modules mounted in sturdy black polycarbonate cases. The faceplate consists of tiny bubble magnifiers which maximise performance by enhancing light as it strikes the cell. Monocrystalline constructi
Non-RoHS Photoconductive cadmium sulphide cell with a spectral response similar to the human eye. As light falling on the cell increases, so the resistance of the cell decreases. Peak spectral response: Typ. 550 nm
A mains operated Ultra Violet light source ideally suited to demonstrate use. Comes complete with an on/off switch. The tube is 45cm long and is housed in a UV reflective plastic housing. Suitable for showing the fluorescing propert
Two photo gates which can be used as a light operated timing gates. Fitted with a pair of 4mm terminals to allow \nconnection to electronic timers. When the light gates are switched on it creates a short circuit, \nwhich becomes an open circuit ea
To explore light reflection and refraction properties of concave and convex mirrors, laws of reflection, image formation, the effects of surface curvature on reflection, spherical aberration etc. Each
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
A range of encapsulated solar cell modules mounted in sturdy black polycarbonate cases. The faceplate consists of tiny bubble magnifiers which maximise performance by enhancing light as it strikes the cell. Monocrystalline constructi
A range of encapsulated solar cell modules mounted in sturdy black polycarbonate cases. The faceplate consists of tiny bubble magnifiers which maximise performance by enhancing light as it strikes the cell. Monocrystalline constructi
A solar kit incorporating 3 independent modules within a sealed miniature solar panel, enabling a range \nof experiments using voltages between 1.5V and 4.5V and outputs from 100mA up to 300mA. \nComplete with stand, low-inertia DC motor, motor st
8 cardboard boxes 150 x 100 x 100 mm with hole, screen and lid, filament lamp, 50 sheets of black paper 200 x 250 mm, one 60 watts lamp, one mounted lamp holder with flex, one packet of pins.
Wooden, with V shaped slot to take spherical lens or mirror up to 75 mm diameter, with index mark.
To demonstrate refraction and provides a better understanding of Snell’s Law. Comprises of acrylic cube and a glass mug. Includes instructions.
Reads to 1 minute of arc.150 mm diameter Scale with protective cover and acrylic windows to read verniers, is fixed to the telescope movement. The table is attached to double ended verniers reading to 1 minute of arc with magnefiers provided for t
Stroboscopic flashes are triggered by either the internal oscillator or by external pulses which may be connected to the two 4mm sockets mounted on the rear panel of the instrument. Example of the many applications of this unit are to be found in
A Robust light box in matt black finish with a 12 V 24 W axial filament lamp with flexible leads. One end of the box takes a cylindrical convex lens in an adjustable sliding mount to enable production of convergent, parallel or divergent beams. Co
Unmounted plastic sheets of size 50x35mm, comprising of 3 primary and 3 secondary colours
Hand held simplest form of spectroscope. It can be used to get a general \nidea of the correlation between wavelength and observed color. A \ndiffraction grating is used which spreads the incident light into its \ncomponent wavelengths. An illumin
A metal Ray Box comprises of a die cast enclosure, delivers white light but runs much cooler than conventional ray boxes. It uses the latest cool ultra bright LED technology giving superior white light. Supplied complete with slit plate and batter
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A flat glass plate and a slightly convex lens of 50 mm diameter Are placed in a metal frame with three pressure adjusting screws to produce Newtons Rings.
For demonstrating that white light may be composed from all the spectral colours by rotation of the multi coloured disk. Comprising of a 200mm disc, and driven by gears with the help of driving wheel fitted with a handle can be clamped to a desk.
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
For the rapid examination of spectral composition of white light, metal tube with draw out focusing and an adjustable slit fitted with a chromatic objective glass and 3 element prism. Complete in wooden box.
Housed in black metal body, specially molded spectrum tube sockets enable the tube to be placed in position easily and also provides protection against electrical contact. Bottom socket is spring loaded for easy tube
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
This liquid is non-toxic liquid paraffin containing a UV sensitive photochromic dye. Indoors it appears as a clear liquid but when exposed to natural light it immediately becomes coloured. This colour increases in intensity when exposed to direct
A range of encapsulated solar cell modules mounted in sturdy black polycarbonate cases. The faceplate consists of tiny bubble magnifiers which maximise performance by enhancing light as it strikes the cell. Monocrystalline constructi
Non-RoHS Photoconductive cadmium sulphide cell with a spectral response similar to the human eye. As light falling on the cell increases, so the resistance of the cell decreases. Peak spectral response: Typ. 550 nm
A mains operated Ultra Violet light source ideally suited to demonstrate use. Comes complete with an on/off switch. The tube is 45cm long and is housed in a UV reflective plastic housing. Suitable for showing the fluorescing propert
Two photo gates which can be used as a light operated timing gates. Fitted with a pair of 4mm terminals to allow \nconnection to electronic timers. When the light gates are switched on it creates a short circuit, \nwhich becomes an open circuit ea
To explore light reflection and refraction properties of concave and convex mirrors, laws of reflection, image formation, the effects of surface curvature on reflection, spherical aberration etc. Each
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
Evacuated glass tube, about 26cm long, straight \nform, filled with different types of gases or vapours \nto study their respective discharge. The glass tube \nhas metal cap electrodes at both the ends for \nconnecting to high voltage supply and a
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
These pigments normally have a pale, off-white appearance but in sunlight or UV light they instantly change to a bright, vivid colour. The pigments revert to their pale colour when away from sunlight or UV light. If the pigment is mixed with a bin
A range of encapsulated solar cell modules mounted in sturdy black polycarbonate cases. The faceplate consists of tiny bubble magnifiers which maximise performance by enhancing light as it strikes the cell. Monocrystalline constructi
A range of encapsulated solar cell modules mounted in sturdy black polycarbonate cases. The faceplate consists of tiny bubble magnifiers which maximise performance by enhancing light as it strikes the cell. Monocrystalline constructi
A solar kit incorporating 3 independent modules within a sealed miniature solar panel, enabling a range \nof experiments using voltages between 1.5V and 4.5V and outputs from 100mA up to 300mA. \nComplete with stand, low-inertia DC motor, motor st
8 cardboard boxes 150 x 100 x 100 mm with hole, screen and lid, filament lamp, 50 sheets of black paper 200 x 250 mm, one 60 watts lamp, one mounted lamp holder with flex, one packet of pins.
Wooden, with V shaped slot to take spherical lens or mirror up to 75 mm diameter, with index mark.
To demonstrate refraction and provides a better understanding of Snell’s Law. Comprises of acrylic cube and a glass mug. Includes instructions.
Reads to 1 minute of arc.150 mm diameter Scale with protective cover and acrylic windows to read verniers, is fixed to the telescope movement. The table is attached to double ended verniers reading to 1 minute of arc with magnefiers provided for t
Stroboscopic flashes are triggered by either the internal oscillator or by external pulses which may be connected to the two 4mm sockets mounted on the rear panel of the instrument. Example of the many applications of this unit are to be found in
A Robust light box in matt black finish with a 12 V 24 W axial filament lamp with flexible leads. One end of the box takes a cylindrical convex lens in an adjustable sliding mount to enable production of convergent, parallel or divergent beams. Co
Unmounted plastic sheets of size 50x35mm, comprising of 3 primary and 3 secondary colours
Hand held simplest form of spectroscope. It can be used to get a general \nidea of the correlation between wavelength and observed color. A \ndiffraction grating is used which spreads the incident light into its \ncomponent wavelengths. An illumin
A metal Ray Box comprises of a die cast enclosure, delivers white light but runs much cooler than conventional ray boxes. It uses the latest cool ultra bright LED technology giving superior white light. Supplied complete with slit plate and batter
Showing products per page