>>1527693https://www.youtube.com/@fern-tvhttps://www.youtube.com/@hoogyoutubefern and hoog are part of the same group and cover more general stuff;
Following list I've posted before and is more math/science/tech focused:
@3blue1brown Math visualised
@AlphaPhoenixChannel PhD in Materials Science makes practical demos of various phenomena, e.g. laminar flow, aerodynamics, electric fields
@Asianometry on semiconductor production and history
@DrBecky, astrophysicist on astronomy news
@EagerSpace, weekly analyses of rocketry topics
Fall of Civilizations, very long and detailed coverages of the past
@MarsGuy, geologist covers latest Mars Perseverance findings weekly, concise
@ronhipschman Tales From The Periodic Table, one 20+ minute video per element
@periodicvideos Periodic Videos, a shortish video per element
@paulfellows5411 Astronomy, stellar nuclear physics, planetary science
@ScienceAsylum explains physics