Show HN: As Level Chemistry Lab Simulator

A new free browser lab for Cambridge AS Level chemistry just launched, promising real past-paper experiments, instant feedback, and auto-marking — and the comments instantly split into team Beakers vs team Grammar. One early fan cheered the drill factor, chanting “rehearse rehease rehearse,” and argued that because it follows a strict syllabus, any “AI defects” should be easy to spot and squash. Another swooped in to correct the title — it’s AS, not As — sparking the kind of petty-yet-passionate skirmish only the internet can supply. Cue the memes: “the real endpoint is when the grammar police turn the solution red.”

Behind the drama, the tool itself looks stacked: 23 past papers, live color changes, nudge-you-to-precision readings, tables and graphs inside answers, multilingual UI, and offline saving. It even exports tidy PDFs and lets you free-play in the lab. The devs say it’s open source — contributions welcome on GitHub — which only poured more fuel on the “let’s break it and fix it” energy. Verdict from the thread: students get a practice powerhouse, perfectionists get a title to correct, and everyone else gets a front-row seat to the most educational flame war of the week.