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Aluminum Pulley - Triple Tandem
Aluminum Pulley - Triple Tandem
16875

Strong Aluminum Pulleys with deep V-grooves mounted in metal bracket with hooks on both ends. Pulleys are 2" (50mm) dia.
Strong Aluminum Pulleys with deep V-grooves mounted in metal bracket with hooks on both ends. Pulleys are 2" (50mm) dia.

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$8.25 Each
Archimedes Principle Demonstration
Archimedes Principle Demonstration
14703

Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.
Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.

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$13.50 Each
Ball and Card
Ball and Card
11736

Newton's Second Law of Motion. Demonstrates inertia.
Newton's Second Law of Motion. Demonstrates inertia.

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$10.95 Each
Ball and Ring
Ball and Ring
11737

Demonstrates expansion of metals with heat.
Demonstrates expansion of metals with heat.

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$13.50 Each
Bar and Gauge
Bar and Gauge
14699

Illustrates linear and spherical expansion by heating and contraction by cooling. Mild steel bar 110x12.5mm, length x diameter. Mounted on a rod with wooden handle and a brass gauge 150x38mm with a cutout mounted on a separate wooden handle which just admits the bar lengthways and a hole into which the bar passes endways when cold.
Illustrates linear and spherical expansion by heating and contraction by cooling. Mild steel bar 110x12.5mm, length x diameter. Mounted on a rod with wooden handle and a brass gauge 150x38mm with a cutout mounted on a separate wooden handle which just admits the bar lengthways and a hole into which the bar passes endways when cold.

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$10.95 Each
Barometer Demonstration Model
Barometer Demonstration Model
16250

Encased in a transparent acrylic case which allows full view of the movement. The action can be demonstrated with the help of a rubber bellow which increases the pressure when squeezed. Supplied complete with rubber bellow.

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$25.50 Each
Bench Mounting Adjustable Pulley
Bench Mounting Adjustable Pulley
16870

Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.
Strong all metal construction, can be mounted on a table up to 2" (50mm) thick. Aluminum Pulley, 1.125" (300m) diameter, mounted on a vertically height adjustable bracket, which can slide up and down, and can be tightened at any point, from being parallel to the clamping surface, up to 2" (50mm) higher to the clamping surface.

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$10.50 Each
Bourdon Vacuum Gauge
Bourdon Vacuum Gauge
16298

Bourdon type mounted on brass pillar with nozzles for in and out connections 3/8" O.D. Heavy cast iron base for stability. Calibrated 0-30 inches of Hg / 0-750mm of Hg. Used for Vacuum Experiments.
Bourdon type mounted on brass pillar with nozzles for in and out connections 3/8" O.D. Heavy cast iron base for stability. Calibrated 0-30 inches of Hg / 0-750mm of Hg. Used for Vacuum Experiments.

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$40.50 Each
Concepts of Heat and Temperature Kit (Student version)
Concepts of Heat and Temperature Kit (Student version)
15627

Same as 15626, but does not include Basic Linear Expansion apparatus.
Same as 15626, but does not include Basic Linear Expansion apparatus.

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$70.50 Each
Concepts of Resistance Kit (Student version)
Concepts of Resistance Kit (Student version)
16261

Same as 16260, but does not include the Multimeters.
Same as 16260, but does not include the Multimeters.

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$101.00 Each
Conductometer
Conductometer
14695

Demonstrates the difference in thermal conductivity of different metals. Consists of five metal rods stainless steel, brass, copper, iron and aluminum connected to a center metal, brass, hub which is mounted on a rod with wooden handle. The five rods have depressions on the ends to hold wax. When the center hub is heated, heat is conducted through the rods and conductivity of heat can be ascertained by the melting of wax.
Demonstrates the difference in thermal conductivity of different metals. Consists of five metal rods stainless steel, brass, copper, iron and aluminum connected to a center metal, brass, hub which is mounted on a rod with wooden handle. The five rods have depressions on the ends to hold wax. When the center hub is heated, heat is conducted through the rods and conductivity of heat can be ascertained by the melting of wax.

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$9.95 Each
Convection Tube
Convection Tube
15880

To demonstrate convection of heat in liquids. Rectangular glass tube 200 x 150mm sides and 22mm in diameter with a built in funnel for easy pouring in of the liquid. Made from Borosilicate Glass. Instructions included.
To demonstrate convection of heat in liquids. Rectangular glass tube 200 x 150mm sides and 22mm in diameter with a built in funnel for easy pouring in of the liquid. Made from Borosilicate Glass. Instructions included.

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$14.95 Each
Cosmic Energy Kinetic Scuplture
Cosmic Energy Kinetic Scuplture
12932

Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.
Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.

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$12.95 Each
Density Balls - Set of 6
Density Balls - Set of 6
14706

Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.

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$39.95 Set
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Density Blocks Set
Density Blocks Set
14709

Dense wood cube 1" sides. Average weight 16 grams/cube. Wood block: 2" x 2" x 1/8" soft wood. Steel block: 2" x 2" x 1/8". Aluminum block: 2" x 2" x 1/8"
Dense wood cube 1" sides. Average weight 16 grams/cube. Wood block: 2" x 2" x 1/8" soft wood. Steel block: 2" x 2" x 1/8". Aluminum block: 2" x 2" x 1/8"

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$3 Each $4.95 Each
Density Cubes - Set of 6
Density Cubes - Set of 6
14704

Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.

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$42.50 Set
Density Cylinders - Set of 4
Density Cylinders - Set of 4
14705

Aluminum, brass, copper, and steel. 50mm x 12.5 mm.
Aluminum, brass, copper, and steel. 50mm x 12.5 mm.

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$11.50 Set
Elasticity of Gases Kit
Elasticity of Gases Kit
15228

Serves to demonstrate Boyle's Law. Shows what happens when gases are subjected to increased pressure. The plastic syringe, with solid wood base and platen, is constructed so that the calibrations denoting interior volume read right side up. As masses of bricks, books, or other heavy objects are increased, the gas in the syringe is compressed to smaller and smaller volume. The kit includes: 1 Syringe Cylinder w/ Cap, 1 Syringe Piston, 1 Base, 1 Platen.
Serves to demonstrate Boyle's Law. Shows what happens when gases are subjected to increased pressure. The plastic syringe, with solid wood base and platen, is constructed so that the calibrations denoting interior volume read right side up. As masses of bricks, books, or other heavy objects are increased, the gas in the syringe is compressed to smaller and smaller volume. The kit includes: 1 Syringe Cylinder w/ Cap, 1 Syringe Piston, 1 Base, 1 Platen.

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$12.95 Each
Forces and Simple Machines Intro KitForces and Simple Machines Intro Kit
Forces and Simple Machines Intro Kit
16351

The Intro Kit 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 three types of levers, single and double pulley systems, and shows the characteristics of each machine. Set includes: 1 lever with centimeter scale, 2 pulleys, 1 spring scale, 2 weight hangers, 1 slotted weight set, 1 base and support rod, 1 support rod with clamp, 2 hook collars, 1 pulley cord, 1 manual and disc.
The Intro Kit 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 three types of levers, single and double pulley systems, and shows the characteristics of each machine. Set includes: 1 lever with centimeter scale, 2 pulleys, 1 spring scale, 2 weight hangers, 1 slotted weight set, 1 base and support rod, 1 support rod with clamp, 2 hook collars, 1 pulley cord, 1 manual and disc.

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$123.00 Each
Free Fall Tube
Free Fall Tube
16877

A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.
A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.

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$43.50 Each
Friction Blocks and Surface Set
Friction Blocks and Surface Set
15878

For introducing the concept that friction depends on the nature and smoothness of materials. The kit consists of three wooden blocks, L x W, 100mm x 70mm, with hooks. One with a highly polished side, second with a sandpaper side and third with an aluminum side. Complete with a polished wooden base about, L x W, 355mm x 70mm. Instructions included.
For introducing the concept that friction depends on the nature and smoothness of materials. The kit consists of three wooden blocks, L x W, 100mm x 70mm, with hooks. One with a highly polished side, second with a sandpaper side and third with an aluminum side. Complete with a polished wooden base about, L x W, 355mm x 70mm. Instructions included.

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$11.50 Each
Gas Convection Apparatus
Gas Convection Apparatus
14698

Metal construction. With sliding plate glass front. Two glass chimneys. Candle holder is mounted in the box.
Metal construction. With sliding plate glass front. Two glass chimneys. Candle holder is mounted in the box.

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$24.50 Each
Gyroscope
Gyroscope
11735

6 cm in diameter. Supplied with supported base with socket at top end for holding the gyroscope and demonstrating various principles.
6 cm in diameter. Supplied with supported base with socket at top end for holding the gyroscope and demonstrating various principles.

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$16.70 Each
Hand Air Pump
Hand Air Pump
15916

This pump features a painted steel barrel, steel valve assembly, and a wooden handle. Both in and 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.
This pump features a painted steel barrel, steel valve assembly, and a wooden handle. Both in and 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.

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$34.95 Each