How to do the Bedford Level Experiment properly (brief and then detailed)19:34

LINKS A thread I wrote about it: https://www.metabunk.org/posts/222107/ The scale model video: https://www.youtube.com/watch?v=1LLXXRFXanQ The flat earthers’ 2016 attempt: https://www.youtube.com/watch?v=XUjMytEgLyw