Design and tune systems the way engineers do: size components, find resonances, and see how feedback and structure shape behaviour.
20 live simulators
Charge and discharge a capacitor through a resistor, change R, C and the supply voltage, and read the time constant from the exponential curves.
Class 11–12 · College & beyondClass 12 Physics: Electrostatic Potential and Capacitance
Launch simulator: RC Circuit
Drive a series RLC circuit with an AC source, sweep the frequency, and inspect current amplitude, phase and the sharpness of resonance.
Class 11–12 · College & beyondClass 12 Physics: Alternating Current (resonance)
Launch simulator: RLC Resonance
Push a bar magnet through a coil, change speed, turns and magnet strength, and connect the changing magnetic flux to the induced voltage.
Class 11–12Class 12 Physics: Electromagnetic Induction
Launch simulator: Electromagnetic Induction
Build square, sawtooth and triangle waves by adding sine harmonics, inspect the spectrum, and see the Gibbs overshoot at jumps.
College & beyondFourier series: college mathematics and engineering
Launch simulator: Fourier Synthesis
Place current-carrying wires going into and out of the page, and visualise the magnetic field lines, strength and direction they create, including coils and parallel-wire forces.
Class 9–10 · Class 11–12Class 10 Science: Magnetic Effects of Electric Current; Class 12 Physics: Moving Charges and Magnetism
Launch simulator: Magnetic Fields
Toggle inputs on digital circuits from single gates to a half adder, full adder and SR latch, trace signal propagation, and generate truth tables.
Class 11–12 · College & beyondClass 11 Computer Science: Computer Systems (Boolean logic)
Launch simulator: Logic Gates
Change latitude, date, time of day, panel tilt and orientation, and see the sun's path across the sky, the angle at which sunlight strikes the panel, and idealized daily energy.
Class 6–8 · Class 11–12Class 6 Social Science: Earth's motions and seasons; Class 11 Geography: Solar Radiation, Heat Balance and Temperature
Launch simulator: Solar Panel Geometry
Change wind speed, rotor size, air density and rotor control, and inspect a bounded power model with the cube law, the Betz limit, tip-speed ratio and a rated-power cap.
Class 9–10 · College & beyondBuilds on Class 9 Science: Work and Energy (kinetic energy)
Launch simulator: Wind Turbine
Size an off-grid solar battery system, set load and generation profiles, and track state of charge, unmet demand and spilled energy hour by hour.
Class 11–12 · College & beyondBuilds on Class 12 Chemistry: Electrochemistry (batteries)
Launch simulator: Battery Storage
Trip a power station or add load, and watch a simplified grid's frequency fall and recover through inertia, governor droop and automatic generation control.
College & beyondCollege power systems
Launch simulator: Grid Frequency
Choose wall and roof insulation, glazing and air-tightness for a two-storey house, set the weather, and compare U-values, the temperature profile through the wall, and idealized heat loss.
Class 11–12 · College & beyondClass 11 Physics: Thermal Properties of Matter (conduction)
Launch simulator: Building Insulation
Tune proportional, integral and derivative gains on a mass–spring–damper, add a disturbance and actuator limits, and inspect overshoot, settling time and steady-state error.
College & beyondCollege control engineering
Launch simulator: PID Control
Set joint angles or drag a target for a two-link planar robot arm, and inspect forward and inverse kinematics, elbow-up and elbow-down solutions, reachability, and joint versus straight-line motion.
Class 11–12 · College & beyondBuilds on Class 11 Maths: Trigonometric Functions
Launch simulator: Robot Arm
Change tooth counts in simple and compound gear trains, and inspect rotation direction, speed ratio and ideal output torque with animated meshing gears.
Class 6–8 · College & beyondBuilds on Class 6–8 Maths: ratio and proportion
Launch simulator: Gear Trains
Load a simply supported or cantilever beam with point and distributed loads, change span, material and cross-section, and inspect deflection, bending moment, shear and stress in the small-deflection Euler–Bernoulli model.
College & beyondCollege structural engineering
Launch simulator: Beam Deflection
Load stable truss presets (A-frame, Pratt, Howe and Warren), change span, height and loads, and visualize tension and compression in every member found by the method of joints.
Class 11–12 · College & beyondBuilds on Class 11 Physics: Laws of Motion (equilibrium of forces)
Launch simulator: Truss Forces
Mount a machine on springs and dampers over a shaking floor, change mass, stiffness, damping and excitation frequency, and compare transmissibility and resonance.
Class 11–12 · College & beyondClass 11 Physics: Oscillations (forced oscillations, resonance)
Launch simulator: Vibration Isolation
Change a signal's frequency and the sampling rate, observe aliasing, compare sinc and staircase reconstruction, and see how quantization bits limit precision.
College & beyondCollege signals and systems
Launch simulator: Digital Sampling
Adjust low-pass, high-pass, band-pass and notch filters, inspect their frequency response on a decibel scale, see what they do to hum, a tone and hiss, and optionally listen to the result.
College & beyondCollege signals and systems
Launch simulator: Audio Filtering
Edit a 3 × 3 kernel and step through convolution pixel by pixel to see how blur, sharpening and edge detection transform a small test image.
College & beyondCollege image processing
Launch simulator: Image ConvolutionSee the planned labs below, or pick another topic.