Comparative Mechanics Ball Set, 4-Piece (Aluminum, Brass, PVC, Steel) Subcategory_Entomology Supplies Twin conjoined fetal skulls join

Twin conjoined fetal skulls join a single rod-mounted skeletal body

Two photogates

and sound trigger inputs let this 20W stroboscope freeze fast-moving objects

visualizing the forces at play during thermal contraction

Used to isolate Gram-negative bacteria and differentiate lactose-fermenters (pink colonies) from non-fermenters (colorless)

Comparative Mechanics Ball Set, 4-Piece (Aluminum, Brass, PVC, Steel) Subcategory_Entomology Supplies Twin conjoined fetal skulls joinComparative mechanics set of four spheres aluminum, brass, PVC, and steel for quantifying how material, mass, and density influence momentum transfer in collision experiments.