A strange little side quest
Grombi trivia break for Princess Castle Wardrobe: During much of the 19th century in the United States, visibly painted cosmetics became socially unacceptable even though beauty practices never disappeared. Another piece of context lands nicely beside it: In 1958, Tennis for Two used an analog computer and an oscilloscope to turn simple physics into a playable tennis-like demonstration. Not bad for a few facts hiding behind a Play button.