A reference for the questions science already answered.

Most explanations of the physical world fall into one of two failures: they simplify until nothing true is left, or they assume a background the reader does not have. ExplainedLabs exists in between. Each entry starts from a question a person might actually ask and builds the answer far enough that the mechanism, not just the conclusion, is visible.

Topics span physics, biology, chemistry, mathematics, space and the technologies built on top of them. Coverage is exploratory rather than systematic: subjects are added because they are interesting and poorly explained elsewhere, not to complete a curriculum.

Every explanation carries a single difficulty level. There is no beginner and advanced version of the same page. There is one version, written as clearly as the subject allows.

A word on who writes this. I am an engineer, not a researcher, and nothing here is original science. Each entry began as a question I could not answer properly myself: I read until the mechanism made sense, then wrote the explanation I had wanted to find. Curiosity decides what gets covered, not a syllabus, and the sources on every entry are there so the reasoning can be checked without taking my word for any of it.