Fahrenheit, Celsius and Kelvin Summarized

Difference between Celsius, Fahrenheit and Kelvin. For most people 30 degrees is hot unless you're American, then 30 degrees is cold, and 100 degrees is hot.

So, what is the difference between Fahrenheit as used by the Americans, Celsius as used by the rest of the world, and Kelvin, used by the scientists?

With this short video we will summarize the differences between the three main temperatures scales.

[Alejandro-dt]

Why the US is the only country in the world hell-bent on Fahrenheit? Brine? With how much salt? Temp of "life"? Turtles, hummingbirds, men or women's life temp?