Frank Evans and the rest of us in the UK shouldn't be too critical of those
who haven't yet gone metric - after all, the sale of loose goods in metric
weights only became legal in 01/01/2000 here!
AND - we still are one of the few who drive on the left, so that our sword
arm will be available to
On Sat 12 Feb 2000 (18:44:30), [EMAIL PROTECTED] wrote:
The reason I suggested inches for the optical resolution table was that
all
of the metals that we use for gnomons such as rods, spheres, plates,
and
cables are sold in inches or fractions thereof, in the US anyway. I
agree
that
Hi dialists:
Hope you don't mind if I sum up what we've been discussing concerning
optical resolution especially as it relates to the width of the gnomon. I
think the best way of doing this would be with a practical design problem:
Let's say that you have a comission to build a very large
Like most engineers in the US, I use both systems. Here are some
random observations from a few decades of engineering.
There are very few arguments in favor of American (nee Englsih)
units other than avoidance of the the cost of conversion. However,
it is interesting that the English system
U.S. Federal contracts require metric units (but usually not standard
metric sizes) . The U.S. populace still thinks in English customary
units. For example, highway construction is specified in metric units;
highway speeds are in customary units.
U.S. customary units have long been
