{
  "name": "The syrup line in water and air: body length at Re = 1 for 1 and 10 body lengths per second",
  "desc": "Body length and speed at which the Reynolds number equals 1 for swimmers moving 1 or 10 body lengths per second, in water at 20 and 25 °C and in air at 25 °C",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Ants, Cells & Atoms",
  "url": "https://antscellsandatoms.com/scale/the-syrup-line/",
  "from": [
    "water-properties.csv (20 and 25 °C rows, IAPWS); air kinematic viscosity from Farisenkov et al. 2022; L = √(ν/k)"
  ],
  "how": "Compiled by Ants, Cells & Atoms from the data listed",
  "data_by": [
    "Water density and viscosity: International Association for the Properties of Water and Steam, IAPWS R6-95(2018) and IAPWS R12-08 (2008), https://iapws.org/technical-guidance/release/viscosity; values computed 2026-10-24",
    "Air at 25 °C: Farisenkov SE et al. 2022, Nature 602:96, CC BY 4.0, https://doi.org/10.1038/s41586-021-04303-7, retrieved 2026-10-24",
    "Body lengths at Re = 1: computed 2026-10-24"
  ]
}