Precision Borosilicate Crown Glass Prism, 32 x 32mm, R=1.51 Lab Supplies_Lab Burner Accessories Three-speed manual transmission with reverse

Three-speed manual transmission with reverse in a clear-plated case

filled with iron filings whose alignment renders 3D field lines around any bar magnet up to 0

Needle valve and flame stabilizer add precision control to this nickel-plated micro Bunsen burner running on natural gas for small-flame work

Liquid propane Bunsen burner adds a flame stabilizer and adjustable air vent for consistent

Precision Borosilicate Crown Glass Prism, 32 x 32mm, R=1.51 Lab Supplies_Lab Burner Accessories Three-speed manual transmission with reverseBorosilicate crown glass prism with refractive index 1. 51 at 32 by 32mm, the optical grade crown body producing low dispersion baseline measurements in refraction comparison studies.