Move it, don't just read it
If a concept can be turned into something draggable, launchable or breakable, that's the version we build β not another diagram with a caption.
Play2Lrn is a library of small, interactive simulations for the ideas that are easy to read about and hard to actually get β the kind you can recite back on a test and still not really understand. Every simulation hands you a control, not a paragraph, and lets the concept explain itself while you play with it.
If a concept can be turned into something draggable, launchable or breakable, that's the version we build β not another diagram with a caption.
No installs, no accounts you need for a lab kit, nothing to configure. Open a simulation and you're already touching it.
Ad auctions sit next to projectile motion. The subject doesn't matter as much as whether playing with it beats reading about it.
The library is small on purpose β we'd rather ship a handful of simulations worth playing with than a hundred that aren't. New ones land regularly, and the whole thing is free to try during the beta.