On 2016-07-16, Lisi Reisz <lisi.re...@gmail.com> wrote: > On Saturday 16 July 2016 04:48:11 John Hasler wrote: >> Dennis writes: >> > BTW: one inch now equals 2.54 cm *exactly*, in case you haven't been >> > keeping up! (Used to be approx 2.54 cm.) This is what I mean by >> > arbitrary. Don't like the conversion ratio? Then just change it! >> >> It wasn't a change in conversion ratio. It was change in definition. >> Originally US length measures were defined by a physical standard >> derived from the British yard such that the inch worked out to close to >> 2.54cm. In 1893 the inch was defined as 2.54cm and BIPM-supplied meter >> and kilogram standards became the official US measurement standards. It >> took until 1930 for the Brits to catch up. > > Not quite accurate, though sufficiently jingoistic.
Give 'em an inch ... > https://en.wikipedia.org/wiki/Inch > > Lisi > > -- Même l’avenir n’est plus ce qu’il était. Paul Valéry
