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Demonstrated the Brownian Motion‚ or random motion of smoke particles. A specially designed plastic box has a sliding lid at the top and contains a glass smoke cell, a cylindrical condensing lens and a low voltage festoon
The set consists of two plastic, 10cm-diameter hemispheres. Each half has a wooden handle firmly attached to it. One of the hemispheres has a raised edge to hold a rubber seal, while the other hemisphere has a stopcock for attaching to vacuum tubi
Set comprises of 9 x 50 gram masses and one 50 gram hanger to give a total of 500 gram.
Set comprises of 9 x 10 gram masses and one 10 gram hanger to give a total of 100 gram.
To show liquid pressure increases with depth. A sheet metal cylinder with three orifices of same size but at different heights.
Comprising a borosilicate glass bulb 70 mm diameter approx., with side arms bent at right angles and formed into jets at their tips. The bulb is carried upon a metal stand which leaves it free to rotate about its horizontal axis. If
This is a small low \nconsumption electric \nmotor on a base \nspecially designed to run \ndirectly from the output of \nthe solar cell.
Comprising of partly evacuated glass bulb approx. \n70 mm diameter, containing at its centre a fi ne pivot \nwhich supports four light weight metal arms. One side \nof each vane is blackened, the reverse side is bright. \nMounted on round base, wh
General purpose clamps. Two welded steel plates with plated screws, handle and swivel shoe. Can clamp objects upto 7.5cm
Calorimeters, Aluminium - 75 x 50mm With parallel sides and rolled rim. Please note that natural oxidisation can occur Dimensions: 75 x 50mm
Borosilicate water jacket 205x100mm diameter surrounding a combustion chamber integral with it and open at its base. The combustion chamber is connected to a copper spiral heat transfer tube, which when used is connecte
Comprising a cylinder 200 x 30 mm dia one half of which is wood, \nthe other metal. If paper is wrapped tightly round the cylinder and the \nrod is held above the flame, the portion is contact with the wood will \nbe quickly scorched while the por
Robust colour co-ordinated sand timers giving accurate interval times for individual pupil use. Ideal for use in both Science and Maths lessons. Size: 90mm x 25mm.
Cubes for density investigation, 25 mm side. Set of 9 comprising brass, iron, copper, aluminium, hardwood, softwood, nylon, PVC and acrylic.
The kit consists of a set of 2 bi-metal strips measuring \n100 x 8 x 0.5 mm securely attached to wooden supports. \nThe device can be held in a standard laboratory clamp \nand with a few leads, battery or power supply, buzzer, and \nwhile revising
Searle’s Pattern. Spirit level mounted in two \nrectangular cast iron frame with one end \nresting on point of micrometer screw, fi tted \nin one frame, the second end of spirit level \npivoted in the second frame. The micromete
Made of nickel-plated brass, with ratchet top, oxidized threaded steel rod.
Consists of 5 plywoood beams with grooves. Supplied with 4 fulcrums & 40 \nmetal blanks 25mm square., fi ve plywood beams 600 x 44 x 3 mm graduated \nevery 38 mm and with groove across its centre to locate the fulcrum \npoint. Also included ar
A 250W tungsten filament bulb available with bayonet fitting, internally silvered.
This set has been assembled to provide a range of slides suitable for use in Biology. Set of 24 slides consisting of Artery and vein. Bone, T.S. Colon, T.S. Eye, V.S. Human blood smear Joint, L.S.
All significant structures of a plant cell are \nshown in colourful relief on this model, study \nthe cell wall, nucleus, vacuole, golgi \napparatus, mitochondria, chloroplast, \nchromoplast, lucoplast and endoplasmic \nreticulum up close. Size 33
A cluster of three LDR’s, connected in parallel, to provide increased \nsensitivity and better control of current directly in a reed relay.
Easy assembly - no soldering ! The line tracking robot will follow a black line with its tracking sensor. You can design your own route for the robot using a black marker pen, black electrical tape etc. No soldering is required. Asse
4mm pin, 18mm long spring insert for making firm contact with the socket into which inserted and solder nipple for attaching wire lead, fixed to a screw on hard plastic body. Overall length of plug about 40mm.
With transparent glass body. Quick blow type. 20 mm long and dia. 5 mm.
Rheostat of excellent quality. They are wound with heavily oxidized resistance wire upon a vitreous \nenameled steel tube. The winding is locked into place with ceramic cement. The tube is carried upon \nrobust enameled die-cast end stands. 4mm so
An excellent model to study the generation of electric current. Produces either AC or DC current when the hand wheel is turned. The generation of AC/DC Voltage is represented by two bulbs fitted on the base. A sw
Pillar mounted on plastic base supporting two pith balls in un-spun silk.
Tapered bristle with cotton tip for \ntubes 19 to 25mm bore. \nLength 230mm on galvanized wire
For showing slow AC on an oscilloscope or meter or for demonstrating the use of a dynamo in lighting a lamp. This apparatus has a cycle dynamo mounted on a base. Two 4 mm. socket terminals are provided for the dynamo output. For a visual output a
With a studded surface, these are ideal for the safe handling of hot beakers, flasks etc. Capable of withstanding temperatures of up to 250 degrees C. Also excellent for handling cold objects down to -57 degrees C.
Neutral glass Borosilicate, light wall, heat and chemical resisting. Supplied in length of 0.5mtr approx. Pack of 30.
Neutral glass Borosilicate, light wall, heat and chemical resisting. Supplied in length of 0.5mtr approx. Pack of 30.
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Demonstrated the Brownian Motion‚ or random motion of smoke particles. A specially designed plastic box has a sliding lid at the top and contains a glass smoke cell, a cylindrical condensing lens and a low voltage festoon
The set consists of two plastic, 10cm-diameter hemispheres. Each half has a wooden handle firmly attached to it. One of the hemispheres has a raised edge to hold a rubber seal, while the other hemisphere has a stopcock for attaching to vacuum tubi
Set comprises of 9 x 50 gram masses and one 50 gram hanger to give a total of 500 gram.
Set comprises of 9 x 10 gram masses and one 10 gram hanger to give a total of 100 gram.
To show liquid pressure increases with depth. A sheet metal cylinder with three orifices of same size but at different heights.
Comprising a borosilicate glass bulb 70 mm diameter approx., with side arms bent at right angles and formed into jets at their tips. The bulb is carried upon a metal stand which leaves it free to rotate about its horizontal axis. If
This is a small low \nconsumption electric \nmotor on a base \nspecially designed to run \ndirectly from the output of \nthe solar cell.
Comprising of partly evacuated glass bulb approx. \n70 mm diameter, containing at its centre a fi ne pivot \nwhich supports four light weight metal arms. One side \nof each vane is blackened, the reverse side is bright. \nMounted on round base, wh
General purpose clamps. Two welded steel plates with plated screws, handle and swivel shoe. Can clamp objects upto 7.5cm
Calorimeters, Aluminium - 75 x 50mm With parallel sides and rolled rim. Please note that natural oxidisation can occur Dimensions: 75 x 50mm
Borosilicate water jacket 205x100mm diameter surrounding a combustion chamber integral with it and open at its base. The combustion chamber is connected to a copper spiral heat transfer tube, which when used is connecte
Comprising a cylinder 200 x 30 mm dia one half of which is wood, \nthe other metal. If paper is wrapped tightly round the cylinder and the \nrod is held above the flame, the portion is contact with the wood will \nbe quickly scorched while the por
Robust colour co-ordinated sand timers giving accurate interval times for individual pupil use. Ideal for use in both Science and Maths lessons. Size: 90mm x 25mm.
Cubes for density investigation, 25 mm side. Set of 9 comprising brass, iron, copper, aluminium, hardwood, softwood, nylon, PVC and acrylic.
The kit consists of a set of 2 bi-metal strips measuring \n100 x 8 x 0.5 mm securely attached to wooden supports. \nThe device can be held in a standard laboratory clamp \nand with a few leads, battery or power supply, buzzer, and \nwhile revising
Searle’s Pattern. Spirit level mounted in two \nrectangular cast iron frame with one end \nresting on point of micrometer screw, fi tted \nin one frame, the second end of spirit level \npivoted in the second frame. The micromete
Made of nickel-plated brass, with ratchet top, oxidized threaded steel rod.
Consists of 5 plywoood beams with grooves. Supplied with 4 fulcrums & 40 \nmetal blanks 25mm square., fi ve plywood beams 600 x 44 x 3 mm graduated \nevery 38 mm and with groove across its centre to locate the fulcrum \npoint. Also included ar
A 250W tungsten filament bulb available with bayonet fitting, internally silvered.
This set has been assembled to provide a range of slides suitable for use in Biology. Set of 24 slides consisting of Artery and vein. Bone, T.S. Colon, T.S. Eye, V.S. Human blood smear Joint, L.S.
All significant structures of a plant cell are \nshown in colourful relief on this model, study \nthe cell wall, nucleus, vacuole, golgi \napparatus, mitochondria, chloroplast, \nchromoplast, lucoplast and endoplasmic \nreticulum up close. Size 33
A cluster of three LDR’s, connected in parallel, to provide increased \nsensitivity and better control of current directly in a reed relay.
Easy assembly - no soldering ! The line tracking robot will follow a black line with its tracking sensor. You can design your own route for the robot using a black marker pen, black electrical tape etc. No soldering is required. Asse
4mm pin, 18mm long spring insert for making firm contact with the socket into which inserted and solder nipple for attaching wire lead, fixed to a screw on hard plastic body. Overall length of plug about 40mm.
With transparent glass body. Quick blow type. 20 mm long and dia. 5 mm.
Rheostat of excellent quality. They are wound with heavily oxidized resistance wire upon a vitreous \nenameled steel tube. The winding is locked into place with ceramic cement. The tube is carried upon \nrobust enameled die-cast end stands. 4mm so
An excellent model to study the generation of electric current. Produces either AC or DC current when the hand wheel is turned. The generation of AC/DC Voltage is represented by two bulbs fitted on the base. A sw
Pillar mounted on plastic base supporting two pith balls in un-spun silk.
Tapered bristle with cotton tip for \ntubes 19 to 25mm bore. \nLength 230mm on galvanized wire
For showing slow AC on an oscilloscope or meter or for demonstrating the use of a dynamo in lighting a lamp. This apparatus has a cycle dynamo mounted on a base. Two 4 mm. socket terminals are provided for the dynamo output. For a visual output a
With a studded surface, these are ideal for the safe handling of hot beakers, flasks etc. Capable of withstanding temperatures of up to 250 degrees C. Also excellent for handling cold objects down to -57 degrees C.
Neutral glass Borosilicate, light wall, heat and chemical resisting. Supplied in length of 0.5mtr approx. Pack of 30.
Neutral glass Borosilicate, light wall, heat and chemical resisting. Supplied in length of 0.5mtr approx. Pack of 30.
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