A homebase for David Lopez: reliable systems, useful explanations, reading notes, family experiments, and work to live up to.https://letsbelopez.com/https://letsbelopez.com/blog/explaining-daylight-before-reading/https://letsbelopez.com/blog/explaining-daylight-before-reading/A placeholder for a web toy I want to build for my son: a small, visual way to understand why one side of Earth is bright and the other is dark.Thu, 14 May 2026 00:00:00 GMT