This sturdy pulley is excellent for use with an inclined plane or any other similar apparatus. Ite features a 4-cm plastic pulley mounted on a chrome plated steel rod. The overall length is 15cm and the shaft diameter is 8mm.

Ideal for demonstrating series and parallel circuits. Lamp Boards are supplied with spare bulbs and an activity guide.

This pump features a painted steel barrel, steel valve assembly, and a wooden handle. Both in a out ports are equipped with hose connectors, for use with vacuum experiments as well as to generate pressure. Length: 14", barrel diameter 1"; shipping weight 1 Lb.

Made from Plate Glass, with carefully ground and polished optical survaces, and cleanly ground edges, these lenses feature a diameter of 38mm - 125mm and focal lengths from 50mm - 500mm.

Classic demonstration of how a current loop generates a magnetic field. Two coils of insulated wire, with 5 and 10 turns respectively, are wound around a 6" diameter plastic ring. The ring is mounted on a plastic base with 3 binding posts that allow connection to five, ten, or fifteen turns of…

Magnifying Glass with Glass lenses molded into high quality unibody plastic frames.

Set of equipment for studying the photo-emission of a mixed alkali photocathode. Precise , stable illumination and bias control for excellent results. This product has a 90 day lead time. Market standard for this type of product.

Good quality weight set contains 9 weights (1 each of 1g, 5g, 10g, 50g, and 100 g sizes, and 2 each 2 g and 20g sizes) plus a set of 1 to 500 mg fractional weights and a 5 mg rider and forceps, in a wooden storage box. Weights are made of polished stainless steel and each weight is inscribed with…

All plastic construction. Dual scale range is 6" or 150mm. Readability is 1/128" or 0.05mm.

This magnetic compass is extra large (90mm diameter), comes in a bright color plastic case, with a clear plastic top. Shipping weight: 2.0 oz. Dimensions: 4"; x 4"; x 1".

Rectangular glass block with two frosted sides, 114mm x 63mm x 19mm.

This versatile and tough steel inclined plane includes a graduated protractor and an adjustable pulley. Incline is 4" wide x 23" long. Includes a 14oz. Roller that can be used as a vehicle on the plane or as a counterweight. Also includes a pan and cord for masses.

Tripod magnifier, 10x magnification. Available in Plastic or Brass with Glass lenses.

Folding magnifier in a pouch. 50mm diameter, 2.5x magnification.

21st century New York Balance is ideal for demonstrating basic physics principles including levers and center of gravity. Set includes a demonstration balance support, three knife edge lever clamps, a half meter stick, one 50g hooked weight, and one 100g hooked weight. Includes activity guide.

This robustly constructed inertia demonstrator works reliably every time and is a great improvement on traditional versions of this classic experiment. A steel ball rests on a thin metal card on top of a pillar, and a spring-loaded catch is mounted next to the pillar. When the catch is released, a…

This device demonstrates the generation, propagation, reflection, interference, and diffraction of waves. It comes with all accessories necessary for these experiments. A 6VDC power source and an overhead projector are required (not included). Instruction manual included.

Deluxe slotted weight set with rack, 8 weights, brass. Includes 1x500g, 2x200g, 1x100g, 1x50g, 2x20g, 1x10g, rack. Deluxe slotted weight set with rack, 10 weights. Deluxe slotted weight set with rack, 12 weights, brass/aluminum. Includes 1x500g, 2x200g, 1x100g, 1x50g, 20g, 1x10g, 1x5g, 2x2g,…

Our Radiometer is made from a glass bulb from which much of the air has been removed. Inside the bulb, on a low-friction spindle, is a rotor with 4 vanes. Each vane has one blackened side and one silvered side; one black vane features a white dot in order to count rotations easily. When exposed to…

Superior version of the classic device for investigating electromagnetic induction—the best we have seen! Primary and secondary coils are wound on robust molded formers fitted with shielded banana jacks, plated iron core has a molded handle for accurate positioning in the coils. Primary coil has…

Acrylic or Flint Glass equilateral refraction prism, measuring 75mm long by 9mm thick.

An insulated snap-on connector with 15cm red and black leads.

This high quality 27mm lens is mounted in a sturdy black plastic loupe. Available in either 6x or 10x.

These Spring Scales come in a clear plastic case, metal pointer, spring, suspension ring, and load hook. Scales are calibrated in Grams, Newtons, or both, with zero adjustment. Other prices are available; call for prices.

Glass thermometer with red Toluene solution is mounted on a plastic backing card. Range is -40° to +50°C .

Operating on 1.5 to 6 V DC, this electromagnet lifts up to 3.5kg. A current direction indicator is included for the study of the magnetic field.

This sturdy pulley is excellent for use with an inclined plane or any other similar apparatus. Ite features a 4-cm plastic pulley mounted on a chrome plated steel rod. The overall length is 15cm and the shaft diameter is 8mm.

This economical seven piece kit lets you demonstrate the conversion between different forms of energy. It includes four devices for generating electrical energy from mechanical motion (hand generator), chemical energy (batteries), light (solar energy), and wind (windmill) and three devices for…

Recommended for grades 3 to 8, this set is ideal for introducing students to the concepts of changing force by levers and pulleys, and the notion of mechanical advantage. The manual describes experiments with the three types of levers, single and double pulley systems, and shows the characteristics…

Strong Alnico 1 Cylindrical Magnets, shipped in pairs, with separators and keepers.

Comprehensive set of equipment with built in He-Ne laser. Top quality optical glass components allow over 75 experiments in geometric and physical optics. This product has a 90 day lead time. Market standard for this type of product.

This instrument is an enhanced version of our popular Intermediate Spectrometer.  Its larger 30mm diameter optics give brighter line images and make precise measurements easier.  The optical focusing system has also been refined and the instrument retains the same premium features as the…