{
  "name": "Phenakistiscope disk count and slot rule",
  "desc": "One claim per row: slits and figures counted on Cooper Hewitt 1948-124-4, the museum’s date and size, the slot rule as Plateau (1833) and Lutz (1920) give it, the rule applied to each set of figures (not observed in motion), and the loop model’s assumed speed.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Flickers & Tintypes",
  "url": "https://flickersandtintypes.com/animation-loops/phenakistiscope/",
  "from": [
    "Cooper Hewitt 1948-124-4 on Commons; Plateau 1833; Lutz 1920; this site’s count and arithmetic"
  ],
  "how": "Compiled by Flickers & Tintypes from the data listed"
}