Total posts : 45366
You are finding that the best way to learn science and engineering testing is to do it. In general, if you describe the test methods and conditions then the results are useful to others even if they choose not to replicate them.
One of my favorite questions to pose to my students when I taught laboratory methods in engineering colleges (three of them) was to write on their reports “Which voltmeter did you use?” The labs had up to 24 meters on the shelf so they couldn’t answer the question. Then I would tell them that if there was a question regarding their data they had no way to confirm that the instrumentation was calibrated properly. The lesson was to always record the serial number of any instruments used.
No, you don’t have to do this but it is one of the principles of good engineering practice and I only mention it to illustrate that these things are not as simple as they seem until one does it.
Anyway, I am enjoying with interest your reports.
I have a hiker’s GPS which gives the distance between two points which would be handy for these range measurements. Your distance wheel is good but it is probably hard to traverse a straight line. I have this funny picture in my mind of you driving across neighbors’ lawns with your door open and you holding the measuring wheel to the ground.