Learn STEM with simulations and virtual labs

Missions, measurements, and visual models for lessons in class and at home.

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Compare R, RC, RL, and RLC circuits, phase shift, impedance, and resonance.

Understand how amino acids join into proteins and why protein structure matters.

Understand why ammonia has a trigonal pyramidal shape and why NH₃ is polar.

Understand how parent selection and generation-by-generation selection produce a new animal breed.

Configure Apollo’s parachute descent and see how deployment timing and Euler’s method affect a safe splashdown.

Test Apollo return trajectories, hit the safe corridor, and see why mathematics and computation mattered for bringing the capsule home.

Build electron configurations and test orbital filling with quantum numbers.

Trace pulmonary and systemic loops, oxygen saturation, and how activity changes heart rate and flow.