We have different metrics internationally for length/distance, weights, temperature, etc. Why, as far as I know, is there only hours/minutes/seconds for the entire world? Not that I’m complaining, the alternative would be a huge pain in the a**, but I’m curious how that happened over time (sorry about the pun). TIA!
In: Physics
There is one official unit system for the world, the SI system with meters, kilogram, seconds, etc, as having different units makes everything pretty difficult.
They have definitions to allow you to derive theses units in the same way everywhere on earth (and basically everywhere in the universe). And if you talk about a length of 1 meter everyone will be able to know what this is exactly.
The only country which does not use these units widespread is the US and basically even the imperial units are derived from SI units (an inch is defined as a specific value in meters, that works similar for the other imperial units too).
Latest Answers