The more to-the-point, the better. Preferably focusing less on the historical developments and more on the "one time someone figured out they could do X with Y and it is clever because Z"
Some large common examples: the loom, the printing press, internal combustion engine, the transistor, clocks anchor escapement, materials, ...
Encyclopedias, podcasts, videos, ... even museums could be good pointers. I realize the question may be too broad but the point is to increase exposure to technologies.
If you're in the Bay Area, the Exploratorium and the Computer History Museum might be something you'd enjoy along these lines.