Description
Compares 2-
the silvery-blue transition metal used as a hydrocarbon-processing catalyst and in metallurgy student demonstrations
and classroom projects
the workhorse decade for introductory Wheatstone-bridge and Ohm's-law work
Optically Worked Double Convex Glass Lens, 75mm Diameter, 1000mm Focal Length Material_Brass Compares 2-Designed for parallel beam refraction work, this 75mm double convex glass lens at 1000mm focal length runs at f 13, near collimated for astronomical analogue and long throw projection setups.
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