I've listened to Engines of Our Ingenuity longer t...

I’ve listened to Engines of Our Ingenuity longer than any other podcast in my list. This month it hit its 3000th episode (started as radio segment in 1988). Sometimes it’s a little heavy on early 20th century aviation but the gems really stand out. The bulk of these episodes are done by one teacher at University of Houston. It’s hard for me to imagine any other podcast I listen to lasting this long.