一份（略微冗长的）阻抗介绍：从复数表示到滤波与谐振电路。

Why uniform circular motion projects into simple harmonic motion: the reference-circle picture.

Keeping secrets out of open-source repos: a credential-handling workflow for public projects.

How CSS overflow works in grid and flex layouts, why scrollbars sometimes never appear, and where min-width: 0 and min-height: 0 belong.

An agent-based model implemented in TypeScript that simulates the spread of disease, compared with the classical SIR model.

Announcing the new blog and the plan to turn old project pages into posts.