https://www.youtube.com/@jkzero Physics professor giving very good historical accounts of the advent of quantum mechanics, creation of the atomic bomb and more.

https://www.youtube.com/@FarmCraft101 Fixing all sorts, with lots of good info and tricks.

https://www.youtube.com/@shawnwillsey Geology professor explaining rocks and rock formations.

https://www.youtube.com/@WriterBrandonMcNulty Writer giving writing advice, typically using popular movies as reference. Funny and informative.

https://www.youtube.com/@HISuttonCovertShores Defense analyst specializing on unconventional naval warfare. Has short informative presentations.

https://www.youtube.com/@GoodBadFlicks Reviews of "classic" movies, but also informative deep dives into some productions.

https://www.youtube.com/@TheHouseofKushTV Interesting audio mixing tips.

https://www.youtube.com/@tods_workshop Medieval weapons, history and practical archeology (testing).

https://www.youtube.com/@ExtractionsAndIre Australian PHD student doing chemistry in his parents shed, what could possibly go wrong.

https://www.youtube.com/@ExplosionsAndFire Australian PHD student using the materials he extracted to make things go boom in his parents shed, what could possibly go wrong.

https://www.youtube.com/@ForgottenWeapons Deep dives into historical firearms, some known, a lot not so much.