For demonstrating wave motion. Helical coil of flat section
tempered steel wire. Coil diameter 7.5 cm. length closed 10 cm.
fully extended 3 meters.
WAVE APPARATUS
For demonstrating longitudinal and transverse motion. Consisting
of a number of eccentric disc supporting a series of metal rods on
revolving the handle, transverse waves are obtained. Longitudinal
waves are obtained with bent rods running in metal guide on
metal base.
KUNDT'S TUBE, UNMOUNTED EISCO
For showing the wavelength of vibrations in air in a closed tube,
by depositing lycopodium powder at the nodes. Comprising a
glass tube approximately 80 cm. in length and 32 mm. in dia. at
one end is a tightly fitting but adjustable cork piston fitted to a
metal rod 100 cm. long and at the other end, a loose fitting piston
attached to a rod, 100 cm. in length and 8 mm. dia. Overall length
fully closed, 1.89 m. Approx.
RIPPLE TANK EISCO
This dual purpose tank is a versatile apparatus allowing all types
of waves and wave motion. With illuminator lamp and important
accessories included it forms a complete ready to us unit. The
unique design and size allows it to be used on an overhead
projector as well. Supplied in foam packing and consists of the
following components :
Ripple Tank 40 x 40 cm.
Push Fit legs
Rippler Motor with eccentric cam, mounted on PVC bar
Three supports for illuminator and the motor unit
Motor hanging clamps
Springs for motor support
Lamp Unit Halogen 6 Volts
Hand Stroboscope
Concave Perspex plate
Convex Perspex plate
Rectangular Perspex plate
Curved reflector
Barrier Large
Barrier Small
Plastic Roller Bar
TUNING FORKS
Best quality nickel-plated, plain shanks, with frequency marked,
C (256), D (288), E (320), F (341), G (384), A (426), B (480), C
(512). Complete set of EIGHT tuning forks, supplied in case.
SONOMETER EISCO
Comprising a wooden resonance box of 114 cm. length, 12.5-cm.
width and 10 cm. height, with two rules 1 meter long sub-divided
into millimeters. One each brass and steel wire of different
diameter attached to fixed bridge and tensioned by fine
adjustment pegs, two moveable bridges, pulley and fixed screw
to enable a third wire to be fixed for tensioning by masses. One
each additional wire of steel and brass, each 1.5 m. length and of
22 SWG.
