Write three difference between the use of local units and that of stander unit.​

Unit is the type of measurement you’re working with. Meter for length, kilogram for mass, or second for time. Standard is an internationally agreed upon way of measuring those units. Kilogram is a good example. In Paris there is an object which is internationally agreed to be a standard kilogram. Everything else that represents a kilogram accurately is actually based on a comparison to the standard kilogram. So the standard is the agreed on reference, and the unit is the type of measurement.

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion

what the question i might be able to