re: #428 Wendell Zurkowitz ((slave to the waffle light))

Celsius does make the most objective sense, being based on the freezing & boiling point of the most common liquid on Earth.

Fahrenheit based his scale on some convoluted reasoning, which nowadays makes no real sense.

re: #427 The Vicious Babushka

Humans in good health and suitably hydrated can survive up to about 50°C; (122°F) for a short time. Above 50, just forget it. Global warming may make that more common than before around the equatorial regions.