Use this product for physics experiments and demonstrations involving density and volume.
• Solid
• Drilled
• 19 mm Dia.
• Made of zinc

Item 3486-26

$2.50

This item is a spare pulley for the force table (Item #3462-00).

Item 3462-11

$10.00

This pulley is best used for lab experiments involving inclined planes.
• 37 mm Dia.
• Made of aluminum

Item 3464-00

$2.16

Use this item for applications where a pulley is to be supported at various heights and angles. It is especially suited for the inclined plane experiment. A plastic pulley, 2″ (50 mm) Dia., is mounted on a metal frame attached to a plated rod about 0.38″ (10 mm) Dia. and 6″ (150 mm) long.

Item 3466-00

$4.13

This item is useful for experiments in which a pulley needs to be supported at various heights and angles. The pulley can be removed and used separately. It is designed for clamping to table edges up to 1.75″ (45 mm) thick with a thumbscrew, and for supporting a 2″ (50 mm) Dia. pulley and rod. The pulley adjusts to 4″ (100 mm) height (min.) and rotates a full 360°.

Item 3467-00

$13.75

This Plumb Bob is made from a hexagonal steel rod by carefully machine turning to a sharpened point. Use it for determining center of gravity or for calibrating measuring devices.
• Includes a screwed end cap with a hole to receive a cord
• Approx. 140 g (5 oz)
• Approx. 85 mm (3.33″) L x 20 mm (0.75″) D

Item 3460-00

$2.81

Use our Spectrometer for introducing students to principal types of spectra and determination of the wavelength and frequency of emitted light. It can also be used for quantitative spectrometric measurement of angle of prism and refractive index of the prism material. It is similar to a Student Spectrometer but it has enhanced features for obtaining better quantitative results. The Spectrometer consists of a heavy cast base and a pillar for collimator support. The telescope arm moves along a fixed circular plate 6″ (150 mm) Dia., graduated in degrees (0-360 x 1). This plate has a double-ended vernier for more accurate measurements. Fine adjustment is accomplished by using a knob while coarse adjustment can be done by hand. Both the collimator and the telescope are mounted with an axis adjustment system. The telescope has a 10X Ramsden eyepiece and is fitted with a cross hair reticle. Both the telescope and the collimator are fitted with coated achromatic objectives of 7″ (178 mm) focal length and 1.25″ (32 mm) Dia., providing light for a brighter and sharper image. The focusing is refined by a concealed rack and pinion. The collimator slit 0.25″ (6 mm) long is specially designed for retention of initial accuracy during the life of the instrument. The prism table 3″ (75 mm) Dia. is held with the help of a clamping screw which enables the table to be rotated in any direction. This item has lines and concentric rings marked to assist in positioning the prism in relation to leveled screws. It is fitted with a diffraction grating holder of aperture 1″ (25 mm) x 1″ (25 mm) and a clamp for holding prisms up to 1.5″ (38 mm) high.
• Comes with a Teacher’s Guide and student handout
• Comes with an instruction manual
• Includes a magnifying eye glass to read the vernier, tommy bar for axis adjustment, and flannel cloth
• Supplied in a wooden box

Item 3381-00

$368.75

• Teacher's Guide Included
• Handout Included
• Video Available

Use these tubes to show spectral lines of pure substances. These are glass tubes approximately 10.25″ (260 mm) long, central capillary portion approximately 3.5″ (90 mm) to 4″ (100 mm) long, with electrodes sealed at both ends and connected to lead wires protected by metal caps. The tubes offer an exciting illustration of spectral lines.
• The tube needs an induction coil 2″ (50 mm) spark, or a suitable transformer like our power supply Item #3376-00D
• Length of capillary portion can be varied as required
• These cannot be used as lamps
• For intermittent use
• Spectrum – Dark Pink

Item 3376-13

$11.56

• Video Available

Use these tubes to show spectral lines of pure substances. These are glass tubes approximately 10.25″ (260 mm) long, central capillary portion approximately 3.5″ (90 mm) to 4″ (100 mm) long, with electrodes sealed at both ends and connected to lead wires protected by metal caps. The tubes offer an exciting illustration of spectral lines.
• The tube needs an induction coil 2″ (50 mm) spark, or a suitable transformer like our power supply Item #3376-00D
• Length of capillary portion can be varied as required
• These cannot be used as lamps
• For intermittent use
• Spectrum – Blue

Item 3376-14

$11.56

• Video Available

Use these tubes to show spectral lines of pure substances. These are glass tubes approximately 10.25″ (260 mm) long, central capillary portion approximately 3.5″ (90 mm) to 4″ (100 mm) long, with electrodes sealed at both ends and connected to lead wires protected by metal caps. The tubes offer an exciting illustration of spectral lines.
• The tube needs an induction coil 2″ (50 mm) spark, or a suitable transformer like our power supply Item #3376-00D
• Length of capillary portion can be varied as required
• These cannot be used as lamps
• For intermittent use
• Spectrum – Purple

Item 3376-16

$14.77

• Video Available

This triangle prism can be used for index of refraction experiments. It is made of durable acrylic.
• Approx. 75 mm face x 25 mm L

Item 3342-04

$4.38

Use these tubes to show spectral lines of pure substances. These are glass tubes approximately 10.25″ (260 mm) long, central capillary portion approximately 3.5″ (90 mm) to 4″ (100 mm) long, with electrodes sealed at both ends and connected to lead wires protected by metal caps. The tubes offer an exciting illustration of spectral lines.
• The tube needs an induction coil 2″ (50 mm) spark, or a suitable transformer like our power supply Item #3376-00D
• Length of capillary portion can be varied as required
• These cannot be used as lamps
• For intermittent use
• Spectrum – Green

Item 3376-08

$11.56

• Video Available

ACRYLIC PRISM, TRAPEZOIDAL

Item 3351-02

$1.98

Use these tubes to show spectral lines of pure substances. These are glass tubes approximately 10.25″ (260 mm) long, central capillary portion approximately 3.5″ (90 mm) to 4″ (100 mm) long, with electrodes sealed at both ends and connected to lead wires protected by metal caps. The tubes offer an exciting illustration of spectral lines.
• The tube needs an induction coil 2″ (50 mm) spark, or a suitable transformer like our power supply Item #3376-00D
• Length of capillary portion can be varied as required
• These cannot be used as lamps
• For intermittent use
• Spectrum – Light Blue-Green

Item 3376-09

$11.56

• Video Available

LENSES, ACRYLIC BI CONVEX 90X15MM

Item 3352-01

$2.18