temperature — Special Report
Hot, Cold, and Everything in Between
Degrees Fahrenheit and Celsius, measured in coffee, ovens, and celestial bodies
Temperature is the one measurement where the unit system genuinely changes the experience. Ninety degrees Fahrenheit feels like a hot day. Ninety degrees Celsius is a pot about to boil. The number is the same; the situation is entirely different. This is why we have unit converters, and also why Celsius users and Fahrenheit users cannot stop arguing on the internet.
The Fahrenheit scale was invented by Daniel Gabriel Fahrenheit in 1724. He set zero at the coldest temperature he could achieve with a saltwater ice mixture, and 96 at normal human body temperature. Later adjustments moved body temperature to 98.6. It's a scale born from practical limits, not mathematical elegance — which is probably why Americans love it.
“Somewhere between your coffee and the sun lies everything that has ever happened.”
The Celsius scale is more rational: zero is the freezing point of water, 100 is boiling. Easy. The problem is that it gives you very little granularity in the human-comfort range. The difference between 20°C (quite nice) and 38°C (dangerously hot) is just 18 units. In Fahrenheit, that's 68°F to 100°F — a bit more room to panic.
But both scales fail to convey what really matters: McDonald's serves coffee at 180°F (the temperature of a minor legal dispute). Pizza ovens run at 700°F (the temperature at which cheese becomes art). The sun's surface is 9,941°F (the temperature at which your problems become irrelevant).
Our temperature database has 13 reference points, from liquid nitrogen to stellar surfaces. All values sourced from scientific literature and at least one lawsuit.