Simulation Lab
Interactive science, built to be handled. Explore a human body, assemble a living cell, wire a motor circuit or operate a robotic arm — four labs, all free in the browser.
Biology
Biology2 labs
From the whole body down to the cell — 3D structures you can pull apart, layer by layer.
Live demoHuman Anatomy
Turn, separate and tap 2,234 structures — from the whole body down to the smallest detail.
Pull apart bones, organs and systems layer by layer, inspect any structure, or explode the body to see how it fits together.
Live demo3D Cell
Cell Atlas
Explore plant, animal, bacterial, yeast and blood cells, neurons, sperm cells and a virus in 3D. Tap any structure, read its role, then test yourself.
Physics
Physics2 labs
From parts to circuits: wire it yourself, switch it on, and watch the motor spin.
Live demoDC Motor Lab
Wire a circuit from scratch and watch it spin.
Drag batteries, switches, resistors, meters and a motor onto the bench, wire them yourself, then watch speed, current and back-EMF respond.
Live demoRobotic Arm Lab
Explore six-axis motion and mechanical structure.
Adjust six joints with forward kinematics, then unfold the arm into 2,317 parts to inspect shells, joints and wiring.
Every lab runs in the browser. No install, no plugin, no video.
Try the free-assembly motor lab