On Sunday 24 February 2019 06:15:26 Peter Blodow wrote: > P.S: People who are used to sixteenths of the width of a medieval > thumb, the weight of rocks used in throwing competitions and the > volume of barrels way too heavy for carrying as measures should not > argue earnestly in public about metric decimal units... > No offence! Peter Blodow > Good points Peter. I recall an experiment we did, 40 or so years back, selling gasolene by the liter. Gas stations that installed pumps measuring in liters went bust because it wasn't an easy conversion & most thought the liter pumps were ripping them off, so they'd drive on till they saw a gallons sign. Old measures die hard was the takeaway. So we still buy milk etc by the gallon or meats by the pound over here. I hoped it would snowball at the time, but to the working public yelling at their government it was a PITA.
> Am 24.02.2019 um 11:29 schrieb Peter Blodow: > > Andy, > > the use of those length units depends on the circle who uses them. > > Woodworkers use cm, metalworkers mm, opticians micrometers, nuclear > > scientists nanometers. The aim is to leave off unused zeroes, either > > in front or after the decimal point. Hectoliters are the most > > important measure of beer hereabouts because it is convenient to > > simply count barrels instead pouring beer in bulky liquid measures, > > and Austrian houewives buy their sausage and meat in Deka's. > > > > By the way, the Gramm is very well named after a dead scientist: > > Saxo Grammaticus, living in the middle ages around 1100, famous > > Danish historian, who wrote a history of Denmark in 16 volumes. He > > even attempted to write an English grammar - English and Danish were > > not so far apart in those days -, but failed because it would have > > become too heavy for the reason of the many exceptions to its rules > > (at the time, there were such). Therefore, the unit of weight was > > named after him. > > And that to this day still confuses the reloaders who load their own ammo for old meat in the pot. A gram of smokeless powder is a lot, compared to a grain, which is what our scales and measures are calibrated in. IIRC 437.5 gr to the ounce. Then some use the troy ounce and some the imperial. Sigh. Its a conspiracy according to many, enough are voters to control it in the long run. > > My best regards! > > Peter Blodow > > Dipl.-Phys. > > > > Am 24.02.2019 um 10:31 schrieb andy pugh: > >> The hecto, centi, deci, deka are deprecated in SI, so cm should > >> not be used. > >> > >> I am a bit annoyed that the base mass unit is the kg, ie that it > >> has an embedded prefix. That is one unit that could very usefully > >> be named after a > >> dead scientist. > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
