For use on pump plate not less than 15 cm. diameters Electric Bell operating on 4-6 volts AC/DC, suspended on rubber cord in bell jar. Fine coiled wire connections to terminals mounted in rubber bung sealing the jar
For use on pump plate not less than 15 cm. diameters Electric Bell operating on 4-6 volts AC/DC, suspended on rubber cord in bell jar. Fine coiled wire connections to terminals mounted in rubber bung sealing the jar
To determine the standing longitudinal waves in column of air and velocity of sound in air, it comprises of a glass tube approx 1.2 meter length and 34 mm diameter. There is a tightly fitting but adjustable piston on a 390 mm long rod at one end of the glass tube. A loose fitting piston attached to a 1.2 meter long sounding rod at the other end of the glass tube, fitted on a wooden base.
To determine the standing longitudinal waves in column of air and velocity of sound in air, it comprises of a glass tube approx 1.2 meter length and 34 mm diameter. There is a tightly fitting but adjustable piston on a 390 mm long rod at one end of the glass tube. A loose fitting piston attached to a 1.2 meter long sounding rod at the other end of the glass tube, fitted on a wooden base.
Made of varnished wood with glass front and membrane suspended on cord for loading with sand to show positions of nodes and antinodes, overall length 760 mm.
Made of varnished wood with glass front and membrane suspended on cord for loading with sand to show positions of nodes and antinodes, overall length 760 mm.
Square section with tapered mouthpiece, made of polished wood, with graduated sliding piston, square in section having a knob at the end for easy handling. The slider is marked with a diatonic scale. It is used to investigate phenomenon of beats in conjunction with a second pipe of same type. Approx. overall length when extended 840mm.
Square section with tapered mouthpiece, made of polished wood, with graduated sliding piston, square in section having a knob at the end for easy handling. The slider is marked with a diatonic scale. It is used to investigate phenomenon of beats in conjunction with a second pipe of same type. Approx. overall length when extended 840mm.
Overall length when fully extended is about 840 mm approx., 540 mm when closed, stoppered, and made of varnished wood with movable piston marked with the chromatic scale from C (256) to (512)
Overall length when fully extended is about 840 mm approx., 540 mm when closed, stoppered, and made of varnished wood with movable piston marked with the chromatic scale from C (256) to (512)
It consists of a tube 100cm long, 25mm dia mounted on a stand which is fitted with leveling screws. The lower end of the rubber tubing provided is connected to the 500ml glass reservoir which slides on a metal rod and can be raised or lowered for adjusting the length of column of air. It is used to measure the velocity of sound waves in air at room temperature by using a tuning fork.
It consists of a tube 100cm long, 25mm dia mounted on a stand which is fitted with leveling screws. The lower end of the rubber tubing provided is connected to the 500ml glass reservoir which slides on a metal rod and can be raised or lowered for adjusting the length of column of air. It is used to measure the velocity of sound waves in air at room temperature by using a tuning fork.
Glass Tube approx. 84cm long and 2.5cm dia mounted on retort stand with clamp and boss, with 500ml glass bulb supported on iron ring, connecting rubber tubing and spring clip.
Glass Tube approx. 84cm long and 2.5cm dia mounted on retort stand with clamp and boss, with 500ml glass bulb supported on iron ring, connecting rubber tubing and spring clip.
It comprises two aluminium tubes telescoping into each other, so that the column of air within the tubes may be altered from 30 cms to 53 cms, outer tube fits into a wooden base.
It comprises two aluminium tubes telescoping into each other, so that the column of air within the tubes may be altered from 30 cms to 53 cms, outer tube fits into a wooden base.
Comprising two plastic tubes one 305 x 32 mm diameter, the other 305 x 25 mm diameter. The small tube slides within the other in foam plastic collars, allowing the air column length to be varied from 300 to 530 mm.
Comprising two plastic tubes one 305 x 32 mm diameter, the other 305 x 25 mm diameter. The small tube slides within the other in foam plastic collars, allowing the air column length to be varied from 300 to 530 mm.
The apparatus consists of a wooden framed tray with a plate glass base and detachable legs, overall size of tray 600x 520x 56mm deep.
A pair of support rods with integral ‘G’ clamps is provided which can be attached to the sides of the tank and used to carry the wave generating system. A set of 4 metal barriers (reflectors) is included consisting of a pair of straight barriers 150 x 25mm, a curved barrier of 215 mm. chord length x 25mm high and a short, straight barrier 25 x 25mm, to minimize unwanted reflections from the sides of the tank a set of four loose gauze strips are provided which, when is use, are arranged around the edges to from a ‘beach’ on all sides.
The apparatus consists of a wooden framed tray with a plate glass base and detachable legs, overall size of tray 600x 520x 56mm deep.
A pair of support rods with integral ‘G’ clamps is provided which can be attached to the sides of the tank and used to carry the wave generating system. A set of 4 metal barriers (reflectors) is included consisting of a pair of straight barriers 150 x 25mm, a curved barrier of 215 mm. chord length x 25mm high and a short, straight barrier 25 x 25mm, to minimize unwanted reflections from the sides of the tank a set of four loose gauze strips are provided which, when is use, are arranged around the edges to from a ‘beach’ on all sides.
The apparatus consists of a framed tray with a plexi glass base and detachable legs, overall size of tray 600 x 520 x 56 mm deep. A pair of support rods with integral 'G' clamps is provided which can be attached to the sides of the tank and used to carry the wave generating system. A set of 4 metal barriers (reflectors) is included consisting of a pair of straight barriers 150 x 25 mm, a curved barrier of 215mm chord length x 25mm high and a short, straight barrier of 25 x 25 mm.
The apparatus consists of a framed tray with a plexi glass base and detachable legs, overall size of tray 600 x 520 x 56 mm deep. A pair of support rods with integral 'G' clamps is provided which can be attached to the sides of the tank and used to carry the wave generating system. A set of 4 metal barriers (reflectors) is included consisting of a pair of straight barriers 150 x 25 mm, a curved barrier of 215mm chord length x 25mm high and a short, straight barrier of 25 x 25 mm.
This unit provides continuously variable D.C outputs for the ripple tank motor, together with a fixed A.C output to operate lamp, supplied with a detachable mains lead.
This unit provides continuously variable D.C outputs for the ripple tank motor, together with a fixed A.C output to operate lamp, supplied with a detachable mains lead.
With four toothed wheels each 75 mm dia, fixed 6 mm apart on a shaft, projecting as spindle with slight taper at its end. Wheels have 36, 45, 54, and 72 teeth respectively, used with whirling table
With four toothed wheels each 75 mm dia, fixed 6 mm apart on a shaft, projecting as spindle with slight taper at its end. Wheels have 36, 45, 54, and 72 teeth respectively, used with whirling table
Simple type model, it comprises a wooden board 700 x 90 mm (L x W) on four feet, fitted with two steel wires about 0.3mm x 1m (dia x length). At one end of base there are two 50 N spring balances with hooks and at the other end are two wrest pins, supplied complete with three bridges, one large, to span both wires and two small bridges for individual wires, two steel wires 0.3 mm dia. x 1 meter long.
Simple type model, it comprises a wooden board 700 x 90 mm (L x W) on four feet, fitted with two steel wires about 0.3mm x 1m (dia x length). At one end of base there are two 50 N spring balances with hooks and at the other end are two wrest pins, supplied complete with three bridges, one large, to span both wires and two small bridges for individual wires, two steel wires 0.3 mm dia. x 1 meter long.
