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DFG300 Transmission Grating 300 Lines per mm
DFG300 Transmission Grating 300 Lines per mm
US$48.64
These quality student transmission gratings are protected by two glass plates, 60mm x 45 mm. Viewing area measures approximately 45mm x 30mm. These transmission gratings are for detailed quantitative spectral analysis.
Delivery within 2-3 weeks
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DFG525-PK/5 Transmission Grating in Slide Viewers 13,400 Lines per mm - Pkg of 5
DFG525-PK/5 Transmission Grating in Slide Viewers 13,400 Lines per mm - Pkg of 5
US$15.76
These quality student transmission gratings are protected by two glass plates, 60mm x 45 mm. Viewing area measures approximately 45mm x 30mm. These transmission gratings are for detailed quantitative spectral analysis.
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HRDKIT3 Chemistry Labware Kit
HRDKIT3 Chemistry Labware Kit
US$99.61
Contents: (2)Dropping Bottle, 30 ml, Barnes. (6)Dropping Pipettes, Plastic. (1)Beaker, Glass, 50 ml. (1)Beaker, Glass, 100 ml. (1)Beaker, Glass, 250 ml. (1)Evaporating Dish, Porcelain,70 mm dia. (6)Stirring Rods, Glass, 8”. (1)Erlenmeyer Flask, Glass, 125 ml. (1)Erlenmeyer Flask, Glass, 250 ml. (6)Test Tubes, Glass, 18 x 150 mm. (1)Cylinder, Plastic (PP), 10 ml. (1)Cylinder, Plastic (PP), 50 ml. (1)Cylinder, Plastic (PP), 100 ml. (1)Forceps, stainless, 5” long. (1)Crucible tongs, steel, 9” long. (1)Funnel, Glass, long stem, 90mm dia. (1)Funnel, Plastic, 75 mm dia. (1)Test Tube Clamp, brass, with finger grips. (1)Wire Gauze, 5” x 5”, with ceramic center. (1)Crucible, Porcelain, 25 ml with lid. (1)Watch Glass, 75 mm dia. (1)Plastic Scoop. (1)Spatula, stainless, 3” long blade with wooden handle. (3)Rubber Stoppers, solid. (3)Rubber Stoppers, one-hole. (3)Rubber Stoppers, two-hole.

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SLRCR1 Solar Powered Car
SLRCR1 Solar Powered Car
US$43.05
This economical demonstration solar car can be powered by a solar cell or a rechargeable battery (AA size, not included). Battery can be recharged from the solar cell, demonstrating an electricity storage system for solar power. The solar cell can be tilted to maximize solar input, features an on/off and select function switch, and includes two binding posts to measure output.
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LTDSE1 Stirling Engine
LTDSE1 Stirling Engine
US$167.36
This economical Stirling Engine runs by exploiting the heat flow generated by the small temperature difference between room temperature and a cup of hot water or ice. It is a classic illustration of converting heat energy into mechanical work using a thermodynamic cycle. The engine runs at about 150rpm when used with cup of hot water. Additional information available upon request. Includes activity guide.
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LCV302 Double Convex Glass Lenses, D 38mm, F. L. 50mm
LCV302 Double Convex Glass Lenses, D 38mm, F. L. 50mm
US$4.69
Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
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LCV502 Double Convex Glass Lenses, D 50mm, F.L. 50mm
LCV502 Double Convex Glass Lenses, D 50mm, F.L. 50mm
US$7.69
Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
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LCV504 Double Convex Glass Lenses, D 50mm, F.L. 100mm
LCV504 Double Convex Glass Lenses, D 50mm, F.L. 100mm
US$5.89
Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
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PHA045 Hollow Acrylic Prism
PHA045 Hollow Acrylic Prism
US$7.94
Equilateral, 45mm sides. Has one hole for adding fluids to study refraction and dispersion. Comes with funnel and stopper. 
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PMD002 Clear Plastic Magnifier, 3x, 6x
PMD002 Clear Plastic Magnifier, 3x, 6x
US$1.09
Clear plastic magnifier is 110 mm (4.50") in length and features dual lenses of 3x and 6x magnification. 3x lens is 50 mm in diameter and 6x lens is 20mm in diameter.
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MGFL6X Giant Folding Magnifier
MGFL6X Giant Folding Magnifier
US$22.89
This magnifier offers an extra large field of view, hands free use, and folds down to a compact size for storage.  Its 10 cm lens provides 6x magnification.  Ideal for use on a lab table, and for dissecting small specimens like owl pellets. 
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TRPBR1 Brass Tripod Magnifier
TRPBR1 Brass Tripod Magnifier
US$18.62
Tripod magnifier, 10X magnification. Brass.
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MFL010 Loupe Magnifier 10X
MFL010 Loupe Magnifier 10X
US$9.24
The high quality 27-mm lens is mounted in a sturdy black plastic loupe. 
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OBMS02 Metal Supports, pk/2
OBMS02 Metal Supports, pk/2
US$6.08
OBMS02 Metal Supports, pk/2 Individual Accessories for Meter Stick Optical Bench Set Item# Description OBLS38 Lens...
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CM7912 Ceramic Magnet, Disc, 25mm Dia., 6mm Thick
CM7912 Ceramic Magnet, Disc, 25mm Dia., 6mm Thick
US$0.80
CM7912 Ceramic Magnet, Disc, 25mm Dia., 6mm Thick We offer a variety of economical ceramic bar, disc, and ring shaped magnets.  Magnets are unpainted,...
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CM7907-PK/2 Ceramic Magnet, Pack of 2, 38 x 8mm Rings, 1 Red, 1 Blue
CM7907-PK/2 Ceramic Magnet, Pack of 2, 38 x 8mm Rings, 1 Red, 1 Blue
US$4.26
CM7907-PK/2 Ceramic Magnet, Pack of 2, 38 x 8mm Rings, 1 Red, 1 Blue We offer a variety of economical ceramic bar, disc, and ring shaped magnets....
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