6-Piece Optical Lens Set, 1.5", Double Convex and Double Concave Entomology & Zoology_Entomology Supplies lets students compare how line

lets students compare how line density per unit length controls the spacing of the resulting interference pattern

pre-assembled on a benchtop base for hands-on fluid-mechanics demonstrations

Used to introduce photoconductivity and light-controlled circuits

this pack of premium qualitative filter paper offers medium-speed gravity filtration with a 10-micron pore size at 85 gsm weight

Bobbin-wound coil for the demountable transformer with panel-mount 4mm sockets and an enclosed earth connection

6-Piece Optical Lens Set, 1.5", Double Convex and Double Concave Entomology & Zoology_Entomology Supplies lets students compare how lineSix piece 1. 5 inch optical lens set with three double convex and three double concave lenses at 200mm, 300mm, and 500mm focal lengths for comparing converging and diverging behaviors.