Replacement Steel Ball, 0.75" - Visual Scientifics Subcategory_Apparatus Sets the f/4 curvature stretching the

the f/4 curvature stretching the focal throw for projection-style image formation and reflector telescope analogues

lighting an LED at the 4mm sockets

and burettes up to 4

Rotary pipette stand holds 94 pipettes vertical with an open-bottom base for rapid draining after washing in high-throughput glassware cleanup

Fourteen-millimeter LED display on this precision digital timer

Replacement Steel Ball, 0.75" - Visual Scientifics Subcategory_Apparatus Sets the f/4 curvature stretching theThree quarter inch replacement steel ball for the 2D collision, loop, and projectile launcher kits, providing a fresh sphere when the original deforms or is lost from repeated bench experiments.