Radioactivity · runs in your browser
Three calculators running my secular-equilibrium package and its engine radioactivedecay directly in your browser (Pyodide) — full functionality, computed locally, nothing sent to a server.
Powered by Pyodide + radioactivedecay (ICRP-107 decay data). First open downloads the scientific-Python runtime (tens of MB, then cached); the latest published secular-equilibrium is fetched on every visit. Secular-equilibrium results assume full equilibrium along each chain.