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The apparatus consists of two stoppered boiling tubes connected by three-way taps to either limb of a graduated manometer
25 w/ Iris Diaphragm Rack & Pinion Adjustment
This Diffraction Grating Demonstration Slide has three 20mm x 10mm gratings with 100
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Plug Switch One, Two Ways & Contact Switch Heart Model The apparatus consists of twoPlug Switch One, Two Ways & Contact Switch. It is used to open and close an electrical circuit momentarily. Excellent for demonstrating Morse code. Stand size 5x11cm. Premium Quality: Plug & Contact Switch is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need
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