Micro-Filaments in Electrical Arcs Through Wood

Picked one by one from a mixed channel. Transcript check: both title readers certain; 4 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include only narrated videos that explain a scientific phenomenon, how a device or mechanism works, a teardown or repair, or a measured experiment. Exclude music-only footage reels, extra-footage clips, personal decor or craft projects, and travel montages.