• Vi Hart (Math) https://www.youtube.com/vihart — I'm amazed nobody else listed her. She's my favourite math channel on YouTube (even though 3Blue1Brown is more technically informative, I just love Vi Hart's sense of style).
• Aerotwist (Frontend / JS) — https://www.youtube.com/aerotwist — Paul Lewis works (or used to work?) on the Chrome team, and is an alum of the (good) HTTP203 podcast
• LunchBox Sessions (Industrial hydraulic systems) — https://www.youtube.com/lunchboxsessions — The videos are just screencasts of schematic simulations, but the presenter (Carl) has a good level of enthusiasm. (Disclosure — I contributed to these videos as an editor / software dev.)
I have been listening to Isaac Arthur lately on the drive in to work - can't say I learn anything amazing, and he stretches his stuff out, but I haven't found anything better to fill the time.
I.e. it's more history channel than a tutorial, but you might be introduced to something to google later, maybe.
• Isaac Arthur (Space / Futurism / Speculative Science) — https://www.youtube.com/channel/UCZFipeZtQM5CKUjx6grh54g — The graphics are pretty cheeseball, but the some of the topics he explores are fascinating. I recommend starting with https://www.youtube.com/watch?v=Pld8wTa16Jk&list=PLIIOUpOge0...
• Aerotwist (Frontend / JS) — https://www.youtube.com/aerotwist — Paul Lewis works (or used to work?) on the Chrome team, and is an alum of the (good) HTTP203 podcast
• LunchBox Sessions (Industrial hydraulic systems) — https://www.youtube.com/lunchboxsessions — The videos are just screencasts of schematic simulations, but the presenter (Carl) has a good level of enthusiasm. (Disclosure — I contributed to these videos as an editor / software dev.)