Important Documents
Style Guide



Use whichever unit of temperature is used in the entry you are writing for. Do not write out Celsius, Fahrenheit, or other units of temperature. Use abbreviations such as °C, °F, and K. For abbreviations which use the degree sign (°), do not leave a space between the degree sign and the number. Units which do not use a degree sign should be written with a space.


  • Correct: 30°C, 30°F, 30 K
  • Incorrect: 30 Celsius, 30 °F, 30K


Scale ratios which indicate the sizes of models should be expressed with a colon (no spaces on either side) between the two numbers. Additionally, the numbers on either side of the colon should always be written numerically.


  • Correct: A 1:100 replica
  • Incorrect: A 1 : 100 replica, a 1/100 replica, a one:one hundred replica

All other measurements

Use whichever unit of measurement is used in the entry you are writing for. Do not abbreviate units. Write them out in all cases.


  • Correct: kilometer, liter, pound, seconds
  • Incorrect: km, l, lb., secs

See also