I knew that the first baseball cards were packaged with packs of cigarettes. I hadn’t realized that there were other genres of cards as well. And I certainly hadn’t realized that there were “science cards.”
The New York Public Library has digitized a large collections of cigarette cards, including a run of science cards from Max Cigarettes in the 30s. Brain Pickings has some favorites, but here are a few of my own:
Somewhat more pleasant than the actual Pavlov experiments.
The backside warns of “cinema-suggestion,” what we’d call subliminal messages, which could “sway the will and destroy the independent mind of whole nations…” Good thing they never heard of cat videos on youtube.
Here’s one for the Tesla or Steinmetz fans: a lightning generator. Although the back suggests that these arcs are “to be used as the power required for splitting the atom.” Not sure how that’s supposed to work.