Build electromagnetic scenes in your browser — wires, solenoids, magnets, charged particles — and watch the field come alive in 2D and 3D: heatmaps, iron filings, field lines, Lorentz-force trajectories. Free, no install, runs on Chromebooks. Made for AP Physics, IB, and university E&M.
It's the field lab that's been in physics classrooms since 2003 — now rebuilt browser-native.
Sick of every sci-fi film where "machines turn evil"? Wondering if a movie is pushing a political message before you commit two hours?
Rotten Tropes shows you the exact tropes and messages a new movie is built on before you watch it. Look up any new release, and you'll see its tags: "new tech leads to disaster," "violence gets results," etc.
AI reads each film's full plot, detects these patterns, and backs every one with evidence. Free, and updated daily as new films hit theaters.
