Guinea And Feather Apparatus, Glass Tube Is 50Cm (20in) Long And 16mm Diameter With Two Rubber Bungs, One Carrying Brass, And 40Cm Long Pressure Rubber Tubing To Connect To Vacuum Pump, Includes: (1) Glass Tube, (1) Piece Of Rubber Tubing
Eudiometer, Demonstrate the combining volume ratios of gases, Platinum electrodes included, Long, sturdy glass tubes have platinum electrodes sealed at the closed end with a 2 mm arc gap, Tubes are marked with a permanent brown scale in 0.1 or 0.2 mL divisions, Size: 100ml
Prism, with different angle 25 degree x 25 degree x 130 degree manufactured from Optical Borosilicate Crown glass having R.I. 1.510 App. Optically worked for use with Spectrometer, Equilateral, two faces polished 32 x 32 mm height.Extra Dense Flint Glass Prism. R. Index 1.65
Equilateral Prism, Material: Acrylic, Useful for experiments in Optics, Light Refraction and Wavelengths, Will create a rainbow (even in room light) by using the simple led light of a smart phone, User will need to create a small slit in a black piece of paper, Size: 1in Hx1in W