From: jmfbahciv on
William Hamblen wrote:
> On Thu, 04 Feb 2010 08:39:37 -0500, jmfbahciv <jmfbahciv(a)aol> wrote:
>
>> Are you also advocating dropping the US money which is based
>> on decimal?
>
> Anyway, american customary units have been defined as ratios of metric
> units since 1893. The metric system has been legal in the US since
> 1866.
>
> I'm waiting for the weather babe on TV to start giving temperatures in
> kelvins. "It's going to be a cold 270 today, so bundle up."
>
Once upon a time, there were TV weathermen who would mention the
different temperature scales just to teach their audience new
things.

/BAH
From: Richard Tobin on
In article <4b6a24a5(a)news.bnb-lp.com>,
Yousuf Khan <bbbl67(a)spammenot.yahoo.com> wrote:
>You do realize that most of the cranks in these newsgroups start out
>like that, don't you?

Usher has been a crank of the nastiest sort for a long time already.
Haven't you noticed his hate-filled rants against women cross-posted
to sci.math?

-- Richard
--
Please remember to mention me / in tapes you leave behind.
From: jmfbahciv on
William Hamblen wrote:
> On Thu, 04 Feb 2010 08:56:28 -0500, jmfbahciv <jmfbahciv(a)aol> wrote:
>
>> Paul Ciszek wrote:
>>> In article <hkbrpu$e0j$1(a)news-int2.gatech.edu>,
>>> Joshua Cranmer <Pidgeot18(a)verizon.invalid> wrote:
>>>> On 02/02/2010 11:53 PM, Andrew Usher wrote:
>>>>
>>>>>> How often do you measure stuff in terms of 10^21?
>>>>> Not often, I suppose. But how do you specify, say, the mass of the
>>>>> Earth?
>>>> Why would people use that in everyday usage?
>>> I happen to be reading this thread in sci.geo.geology, FWIW.
>>>
>> What system do geologists use? There was an argument in
>> sci.physics about 12 years ago w.r.t. which system was
>> preferred in doing physics work.
>
> Old physicists used cgs, young physicists use SI.
>

IIRC the discussion the method preferred seemed to depend on
what the specialty. and there was a third system.

/BAH
From: Mark Borgerson on
In article <xeqdndkzMMsZXPbWnZ2dnUVZ8t6dnZ2d(a)bt.com>, platinum198
@pants.btinternet.com says...
> Mark Borgerson wrote:
> > In article <gerry-4EAAE0.12594505022010(a)news.eternal-september.org>,
> > gerry(a)maths.mq.edi.ai.i2u4email says...
> >> In article <f7jmm5trftkja8ikb1r2lcu6gmthcptdpg(a)4ax.com>,
> >> Antares 531 <gordonlrDELETE(a)swbell.net> wrote:
> >>
> >>> On Fri, 05 Feb 2010 09:09:55 +1100, Gerry Myerson
> >>> <gerry(a)maths.mq.edi.ai.i2u4email> wrote:
> >>>
> >>>> In article <hkeig101lnd(a)news3.newsguy.com>, jmfbahciv
> >>>> <jmfbahciv(a)aol> wrote:
> >>>>
> >>>>> I grew up in the US and cannot think in metric terms so I
> >>>>> always have to do a conversion to make guesstimates.
> >>>>> For some strange reason, kilometers seem to take "longer"
> >>>>> to drive than miles when I drove from Buffalo to Port
> >>>>> Huron, Michigan. :-)
> >>>>
> >>>> Probably because of those metric Canadian hours, what with
> >>>> each one being 100 minutes long.
> >>>>
> >>> When are they likely to change over to a metric week of 10 days?
> >>
> >> I believe that idea was tried and found wanting in the earliest days
> >> of the metric system in Revolutionary France.
> >
> > Those pesky days, months and years---are, unfortunately, tied
> > to the orbital and rotational periods of the Earth and Moon. Those
> > intervals have, so far, not been easy to change! ;-)
> >
> > Lots of science fiction novels have proposed clocks and calendars
> > with more decimal-like intervals. At some point, though, they
> > have to define a small integral unit of time or distance.
> >
> > The meter started out as one ten-millionth of the circumference of
> > the earth along a meridian passing through Paris. Just as logical
> > as measuring Longitude from Greenwich, I suppose. ;-)
>
> Not the full circumference, but the length of the 90-degree arc from pole to
> equator.

Thanks. I missed that factor of four. Nominal 40,000 km circumference
divided by 4 = 10,000km = 1x10^7 m.
>
> The decision to base longitude from the Greenwich meridian was at least
> reached by an international agreement after long negotiations, and was done
> to reduce navigational confusion and the cost of carrying multiple copies of
> charts around in every ship. At the time the (serious) choice was between
> Washington (US Naval Observatory meridian), Greenwich Observatory meridian,
> and Paris Observatory meridian.

The British government also put up the prize that resulted in the
Harrison clocks----which made determination of longitude practical.


Mark Borgerson
From: Bart Goddard on
jmfbahciv <jmfbahciv(a)aol> wrote in news:hkh7n14hcd(a)news3.newsguy.com:


> And you have to know the load wood will put on your house
> supports.

Quick, what's the density of wood in metric?

B.

--
Cheerfully resisting change since 1959.