[zootboy]

Dunno how "hidden" some of these are, but here are my list of interesting hacky or explainy channels with a twist:

Applied Science: Unusual chemistry / physics / misc engineering https://www.youtube.com/c/AppliedScience/videos

NileRed: Unusual chemistry experiments https://www.youtube.com/c/NileRed/videos

Styropyro: Lasers https://www.youtube.com/c/styropyro/videos

Inigo Quilez: 3D rendering and mathematics https://www.youtube.com/c/InigoQuilez/videos

Mike's Electric Stuff: Weird equipment teardowns and electrical engineering https://www.youtube.com/user/mikeselectricstuff/videos

Captain Disillusion: VFX / hoax debunking and education https://www.youtube.com/c/CaptainDisillusion/videos

Retro Game Mechanics Explained: Technical dives into old-school console hardware and software https://www.youtube.com/c/RetroGameMechanicsExplained/videos

Tantacrul: Video essays on music topics that sometimes go completely off the rails https://www.youtube.com/c/Tantacrul/videos