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Demonstration Dynamo, DC
This demonstration model facilitates the understanding of how dynamo works, thanks to the open and exposed design. A mounted armature, comprising two coils of copper wire, is rotated about horizontal axis by turning the hand cranked drive wheel within magnetic field, created by the permanent U-magnet supplied with the unit. Mounted on plastic base with LED and two mm sockets for connection to measuring instruments. Drive Wheel Dimemsions (Dia.): 140 mm. Base Dimensions (W x L): 150 x 200 mm.
274.30 AED
Demonstration Dynamo AC/DC
A hand driven pulley coupled to the smaller dynamo pulley by a rubber belt to give step-up ratio, to generate both AC and DC. Electrical output is via 2 pairs of 4 mm sockets (AC and DC) and two LEDs.
501.97 AED
Demonstration Motor
This demonstration motor comes ready assembled, with an open construction which clearly shows the design working parts of a simple motor. The motor is mounted on a robust wooden base with acrylic end plates with 4mm sockets and comes complete with ceramic magnets and yoke. Requires 1 -3 Volt DC laboratory power supply (not included). Overall Dimensions (L x W x H): 125 x 75 x 60 mm.
513.43 AED
Motor Kit
This self assembly motor kit is very robust and clearly demonstrates the constituent parts of DC motor.
236.75 AED
Demonstration Electric Motor
A model of the simplest form of DC electric motor, having 2-pole armature wound with enamelled copper wire, and permanent magnetic field provided by removable bar magnet. The construction of the model is completely open and all components are readily observable. A disc-type commutator is incorporated and external connection to the phosphorous bronze bushes is by means of a pair of 4 mm sockets. The motor operates on 6-8 V DC.
228.85 AED
Calorimeter Block, Aluminium
For experiments on specific heat capacity, cylindrical with 13 mm diameter central hole to accept immersion heater and off-set hole for thermometer. Mass of each block approx. 1 kg.
143.87 AED
Calorimeter Block, Brass
For experiments on specific heat capacity, cylindrical with 13 mm diameter central hole to accept immersion heater and off-set hole for thermometer. Mass of each block approx. 1 kg.
190.51 AED
Calorimeter Block, Copper
For experiments on specific heat capacity, cylindrical with 13 mm diameter central hole to accept immersion heater and off-set hole for thermometer. Mass of each block approx. 1 kg.
239.52 AED
Calorimeter Block, Steel
For experiments on specific heat capacity, cylindrical with 13 mm diameter central hole to accept immersion heater and off-set hole for thermometer. Mass of each block approx. 1 kg.
76.68 AED
Immersion Heater
Suitable for calorimeter blocks. 50 W fully sheathed 12 V 5 A AC or DC heater with 4 mm sockets. Dimensions (Dia. X L): 12.5 x 100 mm.
173.51 AED
Immersion Heater, Cup Top
A novel design that fits into the top of polystyrene or paper cups. A 2.2 Ohm heating element can be powered from a low voltage supply via the 4 mm sockets in the cap. A hole in the top allows thermometer to be inserted. Ideal for energy transfer, power and specific heat experiments. Diameter: 65 mm. Height: 75 mm.
141.89 AED
Calorimeter Top, 50 mm
Insulating covers made from white PVC to fit calorimeters. Each cover has a central hole for a thermometer and a smaller hole for stirrer.
240.31 AED
Calorimeter Top, 75 mm
Insulating covers made from white PVC to fit calorimeters. Each cover has a central hole for a thermometer and a smaller hole for stirrer.
240.31 AED
Calorimeter, Copper, 75 x 50 mm
With parallel sides, rolled rim and thicker than average walls.
45.45 AED
Calorimeter, Copper, 100 x 75 mm
With parallel sides, rolled rim and thicker than average walls.
63.64 AED
Calorimeter, Aluminium, 75 x 50 mm
With parallel sides, rolled rim and smoothed internal side walls. 50 mm diameter x 75 mm height.
27.27 AED
Calorimeter, Aluminium, 100 x 75 mm
With parallel sides, rolled rim and smoothed internal side walls. 75 mm diameter x 100 mm height.
39.53 AED
Energy Transfer System: Motor/Generator
For use as driving unit /dynamo. Comprises - 6 V D.C. motor provided with 15 mm diameter 'V' pulley. Base size 15 x 10 cm.
182.61 AED
Energy Transfer System: Line Shaft Unit
For showing the conversion from electrical energy via mechanical to potential energy by winding up weight on cord. One end of the 6 mm steel shaft carries an aluminium 'V' pulley 56 mm diameter and the other end is fitted with cord anchoring collar. Base size 15 x 20 cm.
200.79 AED
Energy Transfer System: Solar Cell Motor
This is small low consumption electric motor on base specially designed to run directly from the output of the solar cell and to illustrate the direct conversion of light energy to electrical and hence to mechanical.
81.82 AED
Energy Transfer System: Solar Cell, Mounted
For use with the motor to demonstrate the production of electrical energy directly from light energy. The apparatus comprises aselenium photo-voltaic cell.
118.58 AED
Hand Powered Generator (Dynamo) Set
The generator is mounted in transparent plastic housing. Using a handle and exchange gear, the generator can yield power output of up to 7.5 watts. The generator unit is supplied with an E10 socket for small bulbs and leads with mini crocodile clips for attachment to electrolysis experiments, measuring instruments, electrical circuits, etc. The set consists of two hand generator units (complete with bulb, cable and mini crocodile clips) and includes complete user instructions and a spare bulb.
249.01 AED
Hero's Engine
A functional glass model of the earliest form of steam turbine. Comprising borosilicate glass bulb 70 mm diameter, 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. With 25-30 mL of water put into the bulb and boiled, the increased pressure ejects steam, which causes rapid rotation as per Newton's third law. Supplied complete on stand but without burner.
229.25 AED
Rijke Tube (Singing Pipe)
The 'Singing Pipe' apparatus is a simple, effective and entertaining way to demonstrate energy conversion from heat (thermal energy) to sound energy. Quick and easy to set up and use, this demonstration rarely fails to impress. The apparatus consists of a 450 x 28 mm copper tube which has a metal gauze fitted inside, at pinch point part way up from the base. The tube should be supported by a retort clamp towards the top, away from the heat, and blue Bunsen burner flame directed into the base and onto the gauze for few seconds only. Shortly after removing the flame, the tube emits loud 'foghorn' sound as air is drawn up the tube by heat rising from the hot gauze. If the tube becomes too hot it will stop emitting sound, in which case it should be allowed to cool before trying again.
361.26 AED
Solar Panel, 10 Watts
Solar panel consisting of 36 monocrystalline solar cells mounted in an aluminium frame with front glass panel. Complete with shrouded 4 mm plug leads. • Maximum output: 18.0 V / 0.58 A • Open-circuit voltage: 22 V • Short-circuit current: 0.6 A • Dimensions: 383 x 299 x 34 mm
473.90 AED
Steam Engine SP2
A powerful compact engine capable of driving workshop models. Uses solid fuel tablets.
1264.80 AED
Steam Engine SP4
A versatile unit capable of driving larger models. Uses solid fuel tablets.
1462.43 AED
Conductivity Star
Thermal conductivity apparatus for use witha tea light candle or small bunsen burner flame. The unit has an integral polished wooden handle and metal rods (aluminium, brass, mild steel, copper and nickel) mounted ina brass centre block. Students can discover which metals conduct heat the most efficiently by placing small amount of wax at the end of each rod and seeing which melts first when heat is applied to the centre block. Wax not included. Rod Dimensions (Dia. x L): 4 x 75mm.
57.71 AED
Conductivity Apparatus
Consists of four metal strips (aluminium, brass, copper and iron) mounted on a wooden ring. The outer end of the strips are formed into small cup to contain wax. Suitable for use with a small bunsen flame or tea light/candle.
57.71 AED
Thermal Conductivity Bars
These are safe, clean (no wax) and easy to use. The durable liquid crystal strips embedded in the bars show how a red zone of 40°C moves up the bars. The colours give a dramatic view of conduction and the marked difference in temperature gradients in the bars is also visible. By immersing the heated bars into cold water shows how conductivity applies to heat leaving the metal. The tops of the bars are designed to be touched with finger tip to reinforce the colour observations.
290.11 AED
Thermal Conductivity Bars, Set 12
These are safe, clean (no wax) and easy to use. The durable liquid crystal strips embedded in the bars show how red zone of 40°C moves up the bars. The colours give dramatic view of conduction and the marked difference in temperature gradients in the bars is also visible. By immersing the heated bars into cold water shows how conductivity applies to heat leaving the metal. The tops of the bars are designed to be touched with finger tip to reinforce the colour observations.Class set of 12 in a Gratnells tray.
2905.09 AED
Ingenhousz's Apparatus
Five rods, one of each aluminium, brass, copper, zinc and iron, embedded along one side of metal tank. Rates of melting compared by placing wax on end of rods thus giving rates of conductivity in the different metals. Dimensions (L x W x H): 150 x 90 x 100mm.
224.50 AED
Wood/Metal Cylinder
The wood/metal cylinder offers a nice demonstration of conduction and insulation. The apparatus consists of a copper tube attached to a wooden rod of equal diameter. A piece of paper is wrapped tightly around the central section, covering the wood and metal parts, then the rod/cylinder is passed through a Bunsen burner flame for few seconds, making sure both wood and metal parts pass through the flame. The metal part conducts heat away so the paper hardly browns, but because the wood part is an insulator the paper covering gets scorched by the flame. Dimensions (L x Dia.): 190 x 22 mm.
173.12 AED
Ice Melting Kit, Advanced
This advanced ice melting kit nicely demonstrates the thermal conductivity of materials by using different types of metal blocks to melt ice cubes. The kit consists of an acrylic base with sump, an acrylic tube, two cylindrical copper blocks and two cylindrical steel blocks. The apparatus is set up by placing one of the copper blocks on top of the acrylic base. The base has an integral sump, which will contain the meltwater from an ice cube. The acrylic tube is then placed over the copper block, in order to contain the metal blocks and ice cube. An ice cube is then dropped down the tube onto the block and the second copper block is placed on top. Immediately the ice begins to melt, due to the high thermal conductivity of copper (along with large thermal mass), and in matter of 10-15 seconds the ice will have melted and disappeared. By repeating the experiment using the steel blocks it can be seen that the ice melts more slowly, due to the lower thermal conductivity of steel. Each experiment can be timed, for more accurate comparison between the two different metals. The kit also includes two plastic insulating discs, which can be placed between the ice and the metal blocks to show that it is not simply the pressure of the top block which is causing the ice to melt. If repeating the experiment using the same blocks, it is better to allow the blocks to come back up to room temperature first (if repeatable results are required). Contents: • Acrylic base and tube • 2 x 0.5 kg copper blocks • 2 x 0.5 kg steel blocks • 2 x plastic insulating discs Also required: Ice cubes, preferably quite large.
282.21 AED
Heat Absorption & Radiation Apparatus
This apparatus offers quick and safe method for demonstrating comparative heat absorption from radiated heat source. The apparatus uses a 12 V 24W bulb as heat source, with parabolic metal dishes for heat absorption one finished in black and one in shiny metal. The dishes include integral holders for thermometers, to allow comparison of temperature readings (thermometers not included). Comes complete with instructions.
200.79 AED
Radiant Heat Source
A safe, compact heat source, ideal for heat radiation experiments in schools. Comprising a base and cage enclosing a custom IR radiating lamp of the dull emitter type. • 300 W power output • Dimensions (W x D x H): 150 x 150 x 220 mm
948.60 AED
Leslie Cube
A 10 cm cube with surfaces: dull black, shiny black, white and copper. The opening on top allows the cube to be filled with hot water, and the lid reduces both heat loss and the risk of spillage.
267.98 AED
Heat Sensitive Paper
A novel way to investigate temperature, insulation, and body temperature. Heat sensitive thermochromic paper changes colour as the temperature rises, even from the heat of your hand. The paper is supplied in four colours blue/white, purple/pink, pink/white and green/yellow. Dimensions (L x W): 297 x 210 mm.
319.36 AED
Wind Turbine Kit
This wind turbine can be used to carry out wide range of experiments on wind power. The blades of the wind turbine can easily be attached, removed or adjusted, allowing students to investigate the effects of changing the number, pitch, size and shape of the blades. Some of the effects can be quite counter-intuitive and require students to think carefully about the concepts of energy and power. With mm sockets attached for easy connection to other equipment, the electrical output is DC. Assembly required. Contents: generator assembly 1, support post 1, turbine hub 1, turbine blade posts 6 and turbine blades 6.
258.89 AED
Wind Power Renewable Energy Kit
Wind is one of the most promising sources of clean, renewable energy available today. Wind energy has been used for centuries to pump water and crush grain in windmills, and is now increasingly being used to generate electricity to power our modern world. Using this kit you can assemble a wind turbine complete with electric generator, adjustable rotors, and wind speed indicator, then conduct more than 20 experiments with your wind turbine. Experiment with different numbers of rotor blades, different blade angles and profiles, different wind speeds, different gear ratios etc. Use the wind turbine to generate mechanical power to lift heavy weight or generate electricity to light up an LED and charge rechargeable battery. Includes full-colour, 32-page experiment manual with illustrated instructions and scientific information. • Build working wind turbine • Harness mechanical energy to lift weights • Generate electricity to light an LED and charge battery • Learn the physics of wind turbines • Discover how wind occurs and why it is such promising energy source • Learn about the physics of force and motion as it applies to wind power technology. • Learn how to measure and calculate the different forces acting on the rotor blades by breaking them down into vectors • Discover how the sun makes the wind, providing us with an endless source of energy • Read about different types of wind turbines and windmills
332.01 AED
Wind Turbine Kit
Developed with the National Energy Foundation, this quality, easy to use Wind Turbine Kit is a working model of a real wind turbine. Hands-on and fully interactive, the kit shows how wind power can be harnessed to generate electricity. The kit can be assembled in minutes, is easy to use and has been designed for use in schools, colleges and universities. The wind turbine can be used indoors with a fan, or outdoors in the wind to power the electric motor, buzzer or LED, or can be connected to the voltmeter to measure the amount of electricity generated. The rear vane automatically turns the wind turbine towards the wind, even if the wind changes direction. The turbine hub offers combinations of two, three or six blades and the blade angles can be easily adjusted to discover which configuration gives the greatest electrical output. The kit includes a set of four gears which can be easily interchanged to test different gear combinations e.g. ratios of 3:1, 1:1 and 1:3, to discover what effect this has on the power generated. Packed weight: 1.29 kg The kit contains: • Two-part wind turbine (600 mm high) consisting of nacelle (top), and tower (base) • Integral clamp to secure the wind turbine to table top or bench etc. • Six turbine blades • Motor module • LED module • Buzzer module • Dual-scale analogue voltmeter • Brass-hub gears: 60-tooth, x 40-tooth, and 20-tooth with 1.5mm hex key • Operating and assembly instructions • Cardboard storage case
1162.50 AED
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