I'm already to used to imperial to switch over to metric.
I don't know why, but I can't imagine a kilometer, or even a meter. But I can imagine a foot, or a mile.
If we did, we would have to reteach EVERYONE. Why change what works good enough, and takes less effort.
Farenheit is based on the temperature of some King's foot at tea time, I think.
Farenheit is based on the temperature of some King's foot at tea time, I think.
Because you haven't used them?![]()
Again, order of magnitude is excellent for intuition. A mile is roughly 1 and a half kilometers. A meter is roughly 3 feet. It's pretty easy to gain intuition from there - if you can get used to the stupid 16 cups = 1 gallon thing, you can get used to this.
And again, the metric system is infinitely superior if you are ever going to need any precise measurements.
It was the body temperature of Daniel Fahrenheit (100 F - he had a higher than average body temperature) and the freezing point of a brine solution. (0 F)
According to an article Fahrenheit wrote in 1724,[4] he based his scale on two reference points of temperature.[5] The zero point is determined by placing the thermometer in brine: he used a mixture of ice, water, and ammonium chloride, a salt. This is a frigorific mixture which automatically stabilizes its temperature at 0 °F. (A mixture of ice and water also stabilizes, either freezing or melting at 32 °F though Fahrenheit did not use this point in defining his temperature scale). The second point, 100 degrees, was the level of the liquid in the thermometer when held in the mouth or under the armpit of his wife — subsequent refinements.
That doesn't help, because, even though I know that a mile is roughly one and half kilometers, I still can't imagine it. I'm too used to using a mile as a measurement, and for as long as I live, kilometers, celsius, and everything metric will be foreign to me.
and Kelvin is based on the freezing point of molecules.