"water bath"
Spectrum Tubes
Spectrum Tubes demonstrate the wave properties of different gases.
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United Scientific™ Spectrum Tube
Investigate the spectral pattern of different gases.
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CENCO® Electrodeless Spectrum Tube Power Supply
This safe spectrum power supply features encased spectrum tubes.
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United Scientific™ Reflection/Refraction Kit
Ideal for investigating the reflection of light at a plane mirror and at a water interface.
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Reflection and Refraction Tank
Classical demonstration of refraction and internal reflection.
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Refraction Tank with Laser
The refraction tank with laser provides excellent visibility!
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Student Laser Diffraction Kit
Efficiently illustrates the various types of diffraction.
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Eisco Laser Ray Box
This laser ray box is adjustable, magnetic, and bright enough to use in ambient light.
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United Scientific Laser Line Generator
Project a straight line for mirrors and lenses.
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Laser Optical Disk Set
This is an excellent and economical set for introductory ray optics.
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Laser Diode for Debye-Sears Effect, 3B Scientific
Laser diode of protection classification II with 1 m connector lead and barrel connector for connecting ultrasonic cw generator.
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Klinger Laser Ray Box, Electronic
This laser ray box has several modes, with 1, 3, or 5 beams.
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Klinger LED Laser Ray Box
This laser ray box uses cylindrical LED lenses to focus the beam.
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Laser Optics Demonstration
Delivers outstanding demonstrations of over 70 phenomena in geometric and physical optics.