Ginsberg Scientific Inc.

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US$15.40
This demonstration unit graphically illustrates the inertia of an object. Rest the plastic ball on top of the plexiglass square that is set on the vertical post. Release the spring and the square shoots out. The ball falls into the concave recession in the post, remaining at rest on top of the post as if nothing happened.
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US$15.18
The Fulcrum Holder is a metal support and cast iron base only. Dimensions: 3-3/4"" x 3-3/4" x 6-1/2".
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US$3.23
The Metal Balance Clamp slides on and locks to any meter stick. The removable stirrup can be used for suspension of weights.
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US$53.90
Contains all the necessary components to demonstrate the relationship between length of the lever arm, moment of force, and amount of force. When they adjust weights on the lever to establish equilibrium students will observe the law of torque and its properties. Consists of a 50cm meter stick, stand, three knife-edge clamps, one 50 gram hooked weight and one 100 gram hooked weight.
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US$15.02

This DC Motor Kit contains all the parts you need to build a DC Motor from scratch. Wind your own armature and field coil and build the commutator with two snap pieces. Includes detailed instructions manual. Excellent for classroom project.

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US$41.43
This is a hand vacuum pump supplied with a pressure gauge that reads in both centimeters and inches of mercury. Pumping rate is 15ml per stroke, and will displace up to 725 ml of air. Fitted with a valve to release the vacuum without disconnecting the pump.
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US$46.20
Constructed of heavy gauge aluminum to prevent corrosion and collapsing under a vacuum. Consists of a boiler, sample cup, tripod and two rubber stoppers with and without hole. The boiler is 100mm diameter x 170mm height, the stand measures 240mm in height. Requires a bunson burner or hot plate. (5" x 11-1/2" x 6").
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US$3.85
The Electroscope Foil Leaves are for any Electroscope. Pack of 12. (1/4" x 1").
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US$112.35
This kit can be used to demonstrate most of the principles of electricity. Supplied with an easily understood instruction manual. The kit contains the following: Voltmeter 0-1.5; 0-3v, Milliammeter 0-500 mA; 0-1000mA, Electroscope, Battery Kit, Mini Rheostat, Two Bar Magnets 2" in length, Compass Needle, Two Resistors, Mini Electromagnet, Horseshoe Magnet, Two Mini Contact Switches, Two Bulb Holders, Package of Iron Filings, Battery Holder D-Cell, Coil of Wire, Steel Rod Electromagnet, Acrylic Piece 19mm x 120mm, Two Plastic Rods 5mm x 120mm.
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US$392.00
This is perfect for classroom demonstrations of the effect a load has on a power source. The field of this magneto consists of a single Alnico magnet, which has a strong magnetic flux density. Capable of producing higher voltages then cobalt-steel magnets. The generator is mounted on 7 5/8" x 12" wood base with incandescent lamp and socket used as a load. Two binding posts are placed on the board for attaching other loads. Complete with instructions. (16" x 8" x 6"; 6Ibs).
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US$19.25

This kit is designed to teach permanent and electromagnetic demonstrations. This model of both an AC and DC motor is easy to assemble and disassemble.

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US$107.73

With the Alternating/Direct Current Generator you simply turn the handle and a current is produced that illuminates a lamp mounted on the generator base. Specially designed commutator switches between AC and DC current generation. Open construction allows visibility of all the parts. Magnet polarity marked "N" and "S" for easy reference. Can be removed and remounted with the opposite polarity. Binding posts allow external meters to be hooked up to generator. 

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US$18.72
This DC Hand Generator is a versatile generator and a perfect power supply for many experiments. This pistol grip style handle generator can be utilized with almost any experiment requiring up to 12-volt DC current. Housed in tough clear plastic.
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US$73.99
Four stroke operation is demonstrated by the gear driven timing mechanisms, valves, ignition, systems and more. DC power input is available to power a lamp which represents the spark or glow plug ignition. Made from high density plastic that will withstand continual use.
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US$122.43
The open front spring clips make it much easier to remove the test tubes while the tubes remain submerged. The test tubes have been graduated for a clear measurement of the volume of gas generated. The black acrylic background aids in viewing the water level while supporting the test tubes. The binding posts have been reposititioned for easy access and greater safety. The unit measures 140mm x 203mm x 38mm. Instructions included.
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US$6.93

This conisists of five 2" x 2" Acrylic Color Filters ideal for optical transmission, measurements, solar monitoring, attenuation of laser beams and demonstrating laser light's monochromatic character.

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US$4.62
These Tubular Spring Scales are calibrated in both Grams and Newtons with transparent bodies and each size is color coded for identification.
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US$12.71
The Precision Weight Masses Set is for most balances, supplied in a plastic storage container with stainless steel forceps. Includes: 1-50 gram, 1-20 gram, 2-10 gram, 1-5 gram, 2-2grams, 1-1 gram. Total of 8 pieces.
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US$3.99
Consists of 52 pieces of: 40 of 1 gm masses, 8 of 5 gm, 4 of 10 gm. These masses are excellent for teaching weighing concepts. Molded from durable plastic with recesses so the masses are stackable and color coded to correspond with the value of each mass. The weight value is also molded into the top of each piece.
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US$4.62
These are a set of porcelain Mortar and Pestle.     Order#   Capacity   Rim dia  7-1302-20...
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US$9.17

These are blue solid rubber stoppers are made of excellent grade rubber and sold in one pound bags

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US$23.49

The flame can easily be controlled higher or lower by rotating the ratcheted wick control wheel. The air cap is securely attached to the burner by a matching polished chain. Dimensions: 3.5" tall. 2.75" in diameter. 150ml capacity.

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US$8.09

The Two Way Burner Stand is ideal for use with alcohol burners. The base is made from 3/16" stainless steel rod with a plated steel mesh top. Stand can be used in either high or low positions.

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US$20.79

These Boston Round Flint Bottles with Dropper Assemblies are made of non-porous glass and autoclavable.

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US$6.09

The uncalibrated Specific Gravity Bottle, 25 ml, is made of borosilicate glass with ground stoppers for a precision fit.

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US$2.62
This is a 10ml tall clear glass and stopper form weighing bottle.
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US$6.93
Size: 7 X 60 mm, 1/2 oz. Description: 18/400. The bulbs are made from a synthetic material and do not contain latex.
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US$5.70

These Dropper Bulbs can be used with pipettes and syringes.

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US$9.24
This is a polished aluminum clamp which will rotate and lock into any position. The clamp will hold a standard-size thermometer securely to a support rod. The clamp will accept rods up to 1/2" in diameter, and will rotate 360 degrees and lock into place.
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US$3.08
These are hooks collars that are very versatile to support for various lab experiments. Great for suspending pulleys and spring scales.
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US$1.08
The Mohr's Pinchcock Clamp easily fits over standard size tubing to effectively clamp off hoses and control the flow of solutions.
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US$2.31

These screw form Hoffman Clamp allows added control by a screw type adjustment which allows more or less air or liquid through.

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US$1.78
This Stoddard type Test Tube Clamp with Finger Grips is made of heavy gauge nickel plated steel wire and is 5 inches in length.
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US$128.98

With this distillation apparatus you can separate any mixture of two liquids by raising the temperature of the mixture to a point where one of the liquids will boil but the other remains liquid. Consists of: 300mm Leibig Condenser. Kjeldahl Ball 50mm in dia. 500ml Boiling Flask. Cast Iron Base with Support Rod. Clamp. Cast Iron Tripod. Wire Gauze. 500ml Erlenmeyer Flask.

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US$18.48

Set contains twelve 3 1/2 X 4 1/2 polystyrene spot plates and each spot plate contains twelve 5.7mm depressions.

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US$16.87
The Graduated 5 ml Fermentation Tube is used for the fermentation of carbohydrates and for collecting and measuring the gases that are produced.
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US$7.32
This red rubber safety pipette filler is a bulb type filler. It has three valves which control the air release, liquid intake, and the dispensing of liquid through either a volumetric or Mohr pipette. The three valves are identified on the unit.
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US$3.85
These Bomex Erlenmeyer glass flask have a narrow mouth, tooled top finish, metric capacity scale and thick walls. Does not include stopper. These Erlenmeyer or conical Flasks are excellent for school laboratories.
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US$4.00

These Borosilicate Glass Cylinders come with removable stands for added stability and a bumper guard to prevent breaks.

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US$1.85
These are high quality Short Stemmed Funnels made of Borosilicate Glass.
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US$33.66
These Bomex Glass Brand Separatory Funnels have a conical shape, with ground glass Stoppers and Stopcorks.
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US$131.29

This 36 piece Glassware Kit contains all the essential borosilicate laboratory glassware. Included are the following: Griffin beakers, one 50ml, two 250ml and one 600ml -- Erlenmeyer flasks; one 50ml, two 250ml and one 500ml --six medicine droppers -- six stir rods 6" -- one graduated cylinder 10ml -- one graduated cylinder 100ml -- one serological pipet -- twelve test tubes 16x150mm -- one short stem funnel 75mm x 75mm.

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US$5.08
This Digital Stopwatch comes complete with battery and carrying cord. Featured on this stopwatch are hour, minute, second, calendar display, 24 hour stopwatch, hourly chime, alarm, split time and total time, 12 or 24 hour mode option, and 1/100 second chronograph. Lightweight and easy to operate.
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US$107.80
This is a 4 piece high quality Precision Measurement Set in a high impact reusable plastic storage container. Includes: 1-Micrometer 0-25 x .01mm. 1-Vernier Caliper 150 x .05mm. Knife edge square 90 degrees. Ruler Steel 150mm.
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US$2.00
PTC paper, which is often used when discussing heredity in biology classes, is paper soaked with phenol thiocarbamide (PTC).
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US$2.46
This is pH Test Paper Acid Neutral Base, 100 strips per vial.
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US$2.00

This is pH Test Paper Neutral Litmus, 100 strips per vial. Used to test for acid or alkili.

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US$2.00
This is pH Test Paper Blue Litmus, pH 4.3-6.8, 100 strips per vial. Used to test acids from pH 4.3 red to 6.8 blue/violet.
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US$1.08
These clinder are autoclavable and molded from tough translucent polypropylene with a a broad base for stability and raised graduations for easy reading.
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US$5.17
60mm OD x 18mm Tube Dia x 100mm Total Ht x 30mm Bowl Ht.
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US$0.77

Long Stem Utility Funnels smooth walled and molded from chemical resistant polypropylene with a 60 degree cone angle and external ribs to prevent air lock.

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US$9.24
These burner Tripods have a cast iron support ring with black enamel, acid resistant finish, detachable nickel-plated steel legs angled outward for better stability.
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US$49.28
The 1/2" thick vacuum plate was designed to fit any jar 8-1/2" O.D. or smaller. A rubber gasket is also included. 9" outside diameter.
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US$0.92
This is a 4" x 4" Wire Gauze without ceramic fiber centers and is excellent for high-temperature applications. The gauze is made of woven iron wire with turned edges, which prevents fraying.
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US$7.78
These Wood Splints are helpful for demonstrating oxygen's presence and support of combustion. 3/16" x 5-1/2" x .040 thick. 500/package.
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US$34.50
These detailed kits allow you to build simple inorganic compounds such as H20, NaCI, H2SO4, O2, and C12; simple organic molecules such as ethylene, acetylene, and propane; or complex compounds such as sugar and cyclohexane. Made from a super strong, unbreakable pre-colored plastic. The connecting bonding plugs fit securely yet are flexible enough for double bonding applications. The balls are precision drilled for correct bond angles.
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US$4.24
This is a SPDT Knife Switch with Screw Type Binding Posts for a solid electrical connection, (4-1/2" x 2-1/2" x 1").
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US$4.24

This is a DPST Knife Switch with Screw Type Binding Posts for a solid electrical connection, 4-1/2" x 3-1/2" x 1".

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US$4.86
This is a DPDT Knife Switch with Screw Type Binding Posts for a solid electrical connection, 5-1/2" x 3-1/2" x 1".
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US$16.17
This Compass Board is a package of 20 ungraduated and transparent 20mm in diameter compasses.
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US$66.22
Used for many demonstrations involving electric magnets or solenoids. A plastic spool is wrapped with three layers of 20-gauge magnet wire. A 1.8 cm diameter removable steel core is located inside the solenoid. Insulated binding posts are located at each end for application of an electric current.
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US$59.00
Unit has a high-power silicon cell which converts light directly into electricity to operate a motor. Exceptionally high output 1/2v with 300 milliamps of current output in bright sunlight. Solar cell approximately 2" x 3" with plastic diffusing lens and protective mounting. Motor with special anti-friction bearings revolves approximately 400 RPM in bright sunlight.
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US$46.66
This is a great desktop item and attention-getter. Four powerful solar cells are mounted on a revolving disk and motor. This in turn is mounted to a plastic stand and base. Watch as the entire disk, solar cells included, begin to whirl around when the unit is placed in the sun. Instructions provided.
Delivery within 1-2 weeks
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US$1.69
The 7-1606-1 is a 3/4" single black pulley. Item# Description 7-1606-1 Single Pulley (3/4"W; .1 lb) 7-1606-2...
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