Geometric Optics
Light
Explore reflection, refraction, lenses, and total internal reflection.
Five interactive models
Explore scientific relationships through direct manipulation. Each simulation is a simplified educational model, available in English, Japanese, and Korean.
Fluid Dynamics
Flow
Observe simplified two-dimensional flow around objects.
Orbital Motion
Gravity
Change position and velocity to see orbital motion.
Wave Motion
Wave
Explore traveling waves, reflection, interference, and standing waves.
Electricity
Electricity
See how voltage, resistance, current, and power are related.