AC Circuits: Impedance and Phase Shift
Compare R, RC, RL, and RLC circuits, phase shift, impedance, and resonance.
Sound: Pitch, Loudness, and Wave
Understand how a vibrating source creates a sound wave, how frequency changes pitch, amplitude changes loudness, and the medium controls sound speed and the absence of sound in vacuum.
All Simulations
Apollo Parachute Descent
Configure Apollo’s parachute descent and see how deployment timing and Euler’s method affect a safe splashdown.
Apollo: Re-entry
Test Apollo return trajectories, hit the safe corridor, and see why mathematics and computation mattered for bringing the capsule home.