TAGGED
Physics
3 designs tagged “Physics”.
Toys & mechanisms / Mechanical
Climbing Monkey — Classic Rope-Climbing Pull Toy
Pull the two beads alternately and the monkey ratchets up the cords toward his banana — let go and he stays put, slacken both cords and he slides back down. No springs, no glue, no mechanism to assemble: pure capstan friction through 45° paw channels. 3 printed parts + string. Prints flat, no supports. Kid-safe: Ø33 mm beads pass the choke gauge.
Toys & mechanisms / Mechanical
Pythagorean Cup — Greedy Cup / Cup of Justice (parametric)
Drink from it normally and it works like any cup; fill it past the 'greedy line' and the entire contents siphon out the bottom. Attributed to Pythagoras (~6th c. BC) — a working hidden-siphon trick cup. Parametric SCAD: change cup_d / cup_h to resize.
Toys & mechanisms / Mechanical
Desk Gyroscope — two-axis gimbal flywheel (a toy, not a tool)
A heavy-rim flywheel spinning in a two-axis gimbal on a pedestal — pull the string and the spin axis holds its direction while you tilt the base. A desk toy and physics demonstrator, nothing more.