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Optically worked faces, ground edges, white glass, well polished size 50x45mm
Optically worked faces, ground edges, white glass, well polished size 50x45mm
Optically worked faces, ground edges, white glass, well polished size 50x45mm
Optically worked faces, ground edges, white glass, well polished size 50x45mm
With ground and polished faces and ground edges. One each of double convex, plano-convex, \nconverging concave-convex, diverging concave-convex, double concave, plano-concave. Supplied in box.
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
Resistance varies with the intensity of light falling on the unit.
A cluster of three LDR’s, connected in parallel, to provide increased \nsensitivity and better control of current directly in a reed relay.
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
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
This meter is a precision instrument used to measure illuminance in the fi eld. It meets \nCIE photopic spectral response and is fully corrected for angular incidence of light. \nSupplied with carry case instruction manual and battery. Measuring r
UT383 is a MiniLight Meter equipped with photo electricsensing technology, which can effectively represent light intensity with electrical signals, then processes data and displays the result on LCD. It is light weight, compac
Practical paper chromatography offers motivational learning opportunities, but relies on standard analytical grade papers or much less satisfactory alternatives such paper towelling. Select School Supplies can now offer a really low-cost al
Good quality, hard wearing magnifiers with dual magnification. Specification 45mm. Pk10.
Pocket type magnifier mounted in single body with a metal cover which doubles as a handle fitted with a single lens of diameter 18 mm with a magnification of x 10.
Pocket type magnifier mounted in single body with a metal cover which doubles as a handle fitted with a single lens of diameter 18 mm with a magnification of x 10.
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
For use with the mounted solar cell or on its own. A12V, 24W S.B.C. bulb in a metal socket mounted on a base with pair of 4 mm sockets
For use with the mounted solar cell or on its own. A12V, 24W S.B.C. bulb in a metal socket mounted on a base with pair of 4 mm sockets
Solid steel Small Bayonet Cap (SBC) lamp holder with a tough powder coat paint finish and a solid brass lamp holder with 2 x 4mm electrical sockets. A perfect addition to any school physics laboratory
For use with the motor to demonstrate the \nproduction of electrical energy directly from \nlight energy. The apparatus comprises a \nselenium photo-voltic cell.
For use with the motor to demonstrate the \nproduction of electrical energy directly from \nlight energy. The apparatus comprises a \nselenium photo-voltic cell.
Description Measures transmittance or absorbance of visible light at three wavelengths through a sample with a 10mm path length and displays the values on a liquid crystal display or via USB to dedica
A set of four Mystrica 2.0 wireless colorimeters fitted in a deep Gratnells tray with a lid and polyethylene foam insert Apart from the colorimeters the contents are : • a box of 40 4ml cuvettes • a b
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.
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.
Can be used to filter light sources for special effects and in scientific experiments. Supplied in pack of 5 assorted colours. Each piece 100 x 140mm approx.
Periscope that allows the view of an obstructed field above or below the level of viewer. It is a Z shaped tube with mounted mirrors on both sides at 45° facing each other.
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
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 digital timer with multi functions. It can be used with photo gates to observe the frequency, time interval and as counter during the various experiments. It is a compact handy device operates on po
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.
A multipurpose unit that allows the user to easily calculate Planck's constant, to measure the wavelength of coloured light, demonstrate colour light transmission through colour filters and show the d
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 60 x 60 x 60.
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 60 x 60 x 60.
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 90 x 45 x 45. Size: 50mm
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 90 x 45 x 45. Size: 50mm
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Optically worked faces, ground edges, white glass, well polished size 50x45mm
Optically worked faces, ground edges, white glass, well polished size 50x45mm
Optically worked faces, ground edges, white glass, well polished size 50x45mm
Optically worked faces, ground edges, white glass, well polished size 50x45mm
With ground and polished faces and ground edges. One each of double convex, plano-convex, \nconverging concave-convex, diverging concave-convex, double concave, plano-concave. Supplied in box.
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
Resistance varies with the intensity of light falling on the unit.
A cluster of three LDR’s, connected in parallel, to provide increased \nsensitivity and better control of current directly in a reed relay.
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
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
This meter is a precision instrument used to measure illuminance in the fi eld. It meets \nCIE photopic spectral response and is fully corrected for angular incidence of light. \nSupplied with carry case instruction manual and battery. Measuring r
UT383 is a MiniLight Meter equipped with photo electricsensing technology, which can effectively represent light intensity with electrical signals, then processes data and displays the result on LCD. It is light weight, compac
Practical paper chromatography offers motivational learning opportunities, but relies on standard analytical grade papers or much less satisfactory alternatives such paper towelling. Select School Supplies can now offer a really low-cost al
Good quality, hard wearing magnifiers with dual magnification. Specification 45mm. Pk10.
Pocket type magnifier mounted in single body with a metal cover which doubles as a handle fitted with a single lens of diameter 18 mm with a magnification of x 10.
Pocket type magnifier mounted in single body with a metal cover which doubles as a handle fitted with a single lens of diameter 18 mm with a magnification of x 10.
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
For use with the mounted solar cell or on its own. A12V, 24W S.B.C. bulb in a metal socket mounted on a base with pair of 4 mm sockets
For use with the mounted solar cell or on its own. A12V, 24W S.B.C. bulb in a metal socket mounted on a base with pair of 4 mm sockets
Solid steel Small Bayonet Cap (SBC) lamp holder with a tough powder coat paint finish and a solid brass lamp holder with 2 x 4mm electrical sockets. A perfect addition to any school physics laboratory
For use with the motor to demonstrate the \nproduction of electrical energy directly from \nlight energy. The apparatus comprises a \nselenium photo-voltic cell.
For use with the motor to demonstrate the \nproduction of electrical energy directly from \nlight energy. The apparatus comprises a \nselenium photo-voltic cell.
Description Measures transmittance or absorbance of visible light at three wavelengths through a sample with a 10mm path length and displays the values on a liquid crystal display or via USB to dedica
A set of four Mystrica 2.0 wireless colorimeters fitted in a deep Gratnells tray with a lid and polyethylene foam insert Apart from the colorimeters the contents are : • a box of 40 4ml cuvettes • a b
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.
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.
Can be used to filter light sources for special effects and in scientific experiments. Supplied in pack of 5 assorted colours. Each piece 100 x 140mm approx.
Periscope that allows the view of an obstructed field above or below the level of viewer. It is a Z shaped tube with mounted mirrors on both sides at 45° facing each other.
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
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 digital timer with multi functions. It can be used with photo gates to observe the frequency, time interval and as counter during the various experiments. It is a compact handy device operates on po
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.
A multipurpose unit that allows the user to easily calculate Planck's constant, to measure the wavelength of coloured light, demonstrate colour light transmission through colour filters and show the d
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 60 x 60 x 60.
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 60 x 60 x 60.
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 90 x 45 x 45. Size: 50mm
Non-optically worked with polished faces, edges slightly beveled. Nominal angles 90 x 45 x 45. Size: 50mm
Showing products per page