We already had freedom units. Maybe everyone just rolls with those, especially once English becomes the language of international business.
This is one of my foughts too. There have been some early instances of coordination as well for example Russia matching up its measures to British ones.
However the traditional French system could be a big contestant as well given the French dominance during the Napoleonic era and the fact that most European measures where often defefined in reference to the French ligne, prior to metrication.
Would like to see a reformed English system. 10 inches in a foot. 5k feet in a mile. 100 ounces in a gallon and so on. I use the metric system and it’s fine, save for kilos being both a weight and a distance. Also the units all sound very sterile.
Lastly I like English temp. Just wish water froze at 30 and boiled at 200 or something. I like how saying it’ll be in the 70s today, is an easy way to say the temp without having to say a lot. It’s quick and has a good amount of accuracy
Many German states did do something like this before switching to metric and you also had units like links and chains used for survy purposes, that could potentially replace linear measurs. However given that the imperial system was deviced after the metric one and kept the non base 10 relationship, I don't think a fully decimal system would arise.
Temperature is compleatly distached from metric units, so let's not talk about that.
Fahrenheit wanted 100 to be normal human body temperature. He missed slightly and ended up with it being the threshold for a fever. But that would preclude 200 bring the boiling point of water at sea level.
Fahrenheit is actually better because the boiling point of water decreases with elevation.
I am pretty sure that he wanted body temperature at 96 degrees. This gives you 64 degrees between the freezing point of water and body tempurature. Divide that by to annd you have 3 equally sized intervalls between his low temperature mixture, the freezing point of water and body temperature. Each of the three sections now contains exactly 32=2*2*2*2*2 degrees, so you can mark the individual degrees just by 5 successive steps of adding half lengh markings (which is much easier to do by hand them any other fraction). But year Fahrenheit vs Celsius has little to do with metric units.
There are more reasons to prefer ISU, but this post is already long enough.
This post shouldn't be about which system is better, but there are some things, I'd like to point out without giving any judgement.
The metric system is now on its 33rd revision. Imperial measures were revised just twice in almost 1,000 years.
See this list for UK weights and measurement acts:
https://en.wikipedia.org/wiki/Weights_and_Measures_Acts_(UK)
Not all of them changed the units but many of them do. In fact I am aware of 3 different definitions of the imperial gallon in the last 100 years alone.
The SI metre is the wrong length, it was defined to be 1/10,000,000 of the distance from pole to equator via Paris. Actual distance: 10,001,966m
The SI gramme is the wrong mass, it was defined as the mass of 1cm cubed of water at standard temperature and pressure. Actual mass: 1·000028g
The SI second is the wrong interval and the slowing rotation of Earth will only exacerbate that in future. One mean solar day is NOT 86,400 SI seconds.
One of the main objective of the metric system was to create a system that was somehow convincing enough to be considered unbiased in a way that nations where willing to embrace it and where multiple partys could agree on a common standard for. In this task the metric system was extremly successfull.
The "logical" relationship between the units was a "nice" to have and was originally considered necessary to achive that objective but was abandomed (at least for the metre) relativly quickly, as the definition procedure was found to be flawed (you could come up with different equally valid definitions of fitting the earth's crust to an ellipsoid that give different values for this distance).
The standard temperature and pressure are equally abitray and the solar day lengh is not constant over longer timescales.
The solution to this problem was to require all of these relations only approximatly, go back to physical standards and device a mechanism to assert internation agreement and ultimatly come up with a "build you own standard" manual.
Many people mistakenly think that the UK is fully metricated, but there is specific legislation in place which enshrines certain ISU standards in law.
Year, many people use this weird US, Liberia and Myanmar list of countries that did not adapt the metric system, which is so wrong in every single aspect. In fact a lot of countries do allow or even mandate units outside of the SI or the supplementary units to bigger or lesser degree, while all countries (including these 3) officially adoped the metric system.
Certain liquids (beer and milk are those most often quoted) can only be dispensed loose in pints or fluid ounces. They may (but not must) be sold prepackaged in other units.
Nitpicking here: I am pretty use that it is only the pint and not fluid ounces and this is also only true in very specific setups.
