I usually listen to Wolfram's Science and Technology for Kids and Others. Steven explains all sorts of difficult concepts from first principles. There are hunde

I usually listen to Wolfram's Science and Technology for Kids and Others. Steven explains all sorts of difficult concepts from first principles. There are hunders of hours as Podcasts and on youtube. Be aware though, some episodes can have an opposite effect and keep me up for hours instead of having me fall asleep :)