Simulations
Vernier Callipers
LIVEDrag the jaws, read the coinciding division, master zero error — then test yourself on endless random problems.
Screw Gauge
LIVEMicrometer precision — turn the thimble, read the circular scale and master zero error down to 0.01 mm.
Simple Pendulum
LIVETime period vs length and gravity — run virtual experiments and plot T² against L.
Circuit Lab
LIVEBuild your own circuits — batteries, resistors, bulbs, LEDs, motors and switches with live current-flow analysis.
Ray Optics
LIVEDrag objects past lenses and mirrors — watch 3 principal rays form real and virtual images in real time.
Electric Field
LIVEPlace charges and watch field lines flow — drag to explore dipoles, like charges and superposition in real time.
Projectile Motion
SOONLaunch, trace and tweak — angle, speed and gravity with live range and height readouts.