Set of two resonance boxes with extra heavy aluminium forks having double the duration of audible vibration than the ordinary forks. One fork is weighted and can be adjusted over range of about 30 Hz. forks are of different lengths 19.4 cm and 17.5 cm approx.
To demonstrate resonance, sympathetic vibrations, and beat phenomenon. The two precision-made bars are mounted on a single solid resonance cavity. The cavity has two chambers with one bar tuned to 440Hz. The other to 441Hz. Includes: hammer and instructions. Size: 13.78" L x 7" W x 4.13" H Grades 6+
This unit is designed to demonstrate the principle of an electrochemical call. The LCD clock runs on 2 potatoes, oranges, grapefruits, or cans of soda pop. Ages 7+
Showing internal structure and operating principles of a simple piston air cooled two stroke engine, Mounted on a polished wood base with schematic diagram, overall height 360 mm approx.
A small but powerful van de Graaff generator. Generates high potential (up to 200 KV) and sparks up to 3″. With aluminum dome (7″ dia) and discharge sphere (4″ dia). The total height is about 18″. Comes with one replacement belt and standard accessories.
A simple hand driven van de Graaff generator for producing very high electric potentials at low currents. The apparatus consist of a wooden base, insulated Perspex stand, rubber belt, removable metal dome (135 mm dia), a driving wheel and driving belt. The discharge sphere (50 mm dia) is mounted on a pivoted arm, with handle for adjustment. The length of…
Consists of two disks which can be loaded with up to 8 ball bearings in internal compartments. Load one disk symmetrically and the other non-symmetrically to show the difference. Instructions and eight solid balls included.
General purpose student bench meters with full-scale accuracy of ±2.5% and overload protection. Additional features: large 3" scale, external zero-adjust calibration, and fully enclosed plastic case with inclined meter face. Double range, 0-5 V (0.1 V)/0-15 V (0.3 V).
To show the conversion of mechanical energy into electrical energy. Turbine with transparent cover, inlet, and outlet tubes directly connected to a dynamo. Fitted on base.
Supertek's Wave Demonstrator is a 6-foot metal helical spring. This high-quality spring is ideal for demonstration of travers waves, wave propagation, wave reflection and standing waves. 20mmD.
Demonstrating longitudinal and transverse waves. Some eccentric discs move several metal rods. Transverse waves are obtained by straight rods and longitudinal waves by bent rods.
Nickel-plated steel weight with slot design ensures that it may be easily removed and replaced, but will not fall off accidentally. All weights have the same size slot. Will fit both 50g or 100g nickel plated steel weight handers.
13 cm diameter molded wheel contains 4 grooves of different diameters in the ratios 1, 3, 5 & 7. The grooves are wide and flat bottomed ensuring an exact diameter for each groove, each comes with a small hole to retain the cord. The back of the wheel is hollow to minimize the mass and inertia. Wheel is attached to…
Traditional Electrostatic generator consists of two 250mm diam. Discs with radial aluminum segments driven in opposite directions by hand wheel and belt, with two Leyden jars, on wooden base.
This wire cutter and stripper is for use in installation, repairing and experiments. It will work as a cutter as well as stripper. It has new design handle for making proper pressure on cable. It has locking system at handle of tool.
Long wire helix (spring) for super wave demonstrations. On stand with instructions. Closed length of spring is 10" long and 2 1/2" Diameter. Base is 5"x5".