Male Pelvis Model, Hand-Painted Human Anatomy_Human Skeletons & Bones eliminating cord-threading during setup in

eliminating cord-threading during setup in compound-pulley experiments

Tandem double plastic pulley pairing 38mm and 50mm low-friction wheels on an open-sided steel frame

with a 0 to 20 second reaction window for sanitation and food-safety checks

this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves

Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs

Male Pelvis Model, Hand-Painted Human Anatomy_Human Skeletons & Bones eliminating cord-threading during setup inHand painted male pelvis model exposes the narrower male specific proportions and pelvic inlet shape compared to the female pelvis for sex difference anatomy teaching.