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Fahrenheit vs. Celsius vs. Kelvin (i.imgur.com)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 4 points 1 year ago

The temperature of water is very intuitive in nature. Dip ur hand in ice water. That's almost 0C. Dip ur finger in boiling water (very quickly). That's 100C. Dip ur finger in coffee whose temperature is fit for consumption: that's around 75-80C. Ur hot water shower is likely between 37 and 41C..

Everything is tied quite well to water. Now compare that to F. What's 0F? What's 100F?

Forget the intuitiveness of celsius. It's also much easier to calculate using celsius. When I say "My coffee was worth 80 calories", I'm referring to a measure called "KCal", which is the amount of energy required to raise the temperature of 1 litre, or 1 Kg of water by 1C. So if u ate something worth 100Kcal, you consumed enough energy to heat 1L/1Kg of water from 0C (ice) to 100C (steam). The average human requires around 2500 KCal everyday. Which is equivalent to 2.5 liters of water. Pretty cool, huh....

Just a quick sidenote: KCal is still not an "SI" unit. "Joules" are what we use here, but that's another story.