Follow the question
Each part starts from something the previous experiment couldn't settle. That keeps the work connected even when the apparatus changes completely.
Keep the versions
Instruments change as we learn what they can and cannot do. Keeping those versions visible shows where each capability, cable and oddly specific bracket came from.
Allow the useful detour
Radio, physical constants, computing and visualisation are all good at producing side questions. If a detour changes the measurement or opens a better method, it belongs with the story.
