Practice Labs

Learn by breaking things.

Hands-on sandboxes that behave like the real world — no hardware, no setup. Build it, break it, and see exactly why. When a lesson matches a lab, May brings you straight here.

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Live now· Electrical Engineering

Diodes & Current Limiting

Build a real circuit — battery, resistor, LED. Reverse the diode and it goes dark; skip the resistor and it burns out.

Open lab

On the workbench

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Electrical Engineering

Circuit Sandbox

Free-form breadboard — drop batteries, resistors, LEDs and switches, wire them any way you like, and watch real voltages and currents update live.

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Computer Science

Graphs & Traversals

Drop nodes, draw edges, and watch BFS/DFS walk the graph step by step.

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Robotics

Robot Kinematics

Drive a 2-joint arm and see how angles become reach.

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Machine Learning

Gradient Descent

Tune a learning rate and watch the loss roll downhill (or diverge).