Hua Chen’s Personal Homepage, PhysChen. com, is the online portfolio of Hua Chen, an independent IB and A-level physics teacher, software developer, and theoretical physics researcher. The site brings together his teaching, research, programming projects, writing, and photography.

Its physics section features notes and popular-science articles on topics including gravity, cosmology, dark energy, motion, and the changing role of time in physics. Teaching resources focus on IB and A-level learning, with explanations of examination command terms, physics terminology, experimental skills, data analysis, and study pathways. Chen also shares programming notes and practical software projects, including an Obsidian plugin for composing and normalizing LaTeX, a Windows diagnostics and monitoring tool, and RustleFlow, a file organizer for desktop and Android.

Additional sections contain essays and personal reflections, alongside a photography collection covering cats, portraits, Shenzhen, Wuhan, and Japan. Overall, the homepage offers educational material, technical tools, research commentary, and visual observations, reflecting Chen’s work across science, software, and creative practice