Rectangular Refraction Acrylic Block, 100 x 75 x 18mm Subcategory_Microscope Slides Carefully lagged nickel-plated copper 3

Carefully lagged nickel-plated copper 3 by 2-inch inner cup inside a 4 by 2

87-inch focal length

measuring period under different loads to isolate mass from weight

bridging the reach gap between the standard 500mm and the long-haul 1000mm plug-to-plug patch wires

this 80mm steel needle in a 6mm rod doubles as a precise alignment reference for image-formation and ray-tracing setups

Rectangular Refraction Acrylic Block, 100 x 75 x 18mm Subcategory_Microscope Slides Carefully lagged nickel-plated copper 3Pairs 100 by 75mm with 18mm thickness on an acrylic rectangular refraction block, the wider working face giving longer beam paths for clear refraction angle measurements.