Even dictatorships have problems and as long as they give the ordinary
people bread and circuses, they remain in power.
When South Africa adopted a decimal currency in 1961, they went to great
lengths to ensure that there was no profiteering. As a result,
decimalisation was accepted by the
Dear USMA,
I wrote to our civil aviation safety authority as follows:
I note that the safety rules are drawn up in feet while all Australian maps
are now in metres. This is obviously a safety issue because the training
manual for hot air ballooning warns, Watch out – aviation charts and
I believe the foot for aviation was pushed on the world after the World War 2.
But now that everyone but the US and partially the UK has converted to metres
it would be great if the Europeans pushed for meters in Europe, just the
Reduced vertical separation at altitude it would in 10-20 years
For many years, the USA had by far the largest air travel market in the
world, and so could call all the shots. That is no longer true. The rest of
the world could bring together the following factors, if it so chose, to
effect a change in the not too distant future:
1. The air travel market
Russia, China, Mongolia, North Korea, and the CIS states currently have
metric-airspace. All the satellite nations that wanted to lean European
switched to feet.
Separations are 1000' or 300 m (in opposite directions)
The airliners that fly those routes have glass cockpits. Their biggest
Whatever the merits of a change, one needs to think of the logistics of
implementing the change, particularly in Western Europe where the skies are
very crowded. It would have to be a big-bang change with a period of total air
closure for safety reasons.
-Original Message-
From:
I wonder how USMA could assist Burma in their metrication efforts?
-- Ezra
- Original Message -
From: Martin Vlietstra vliets...@btinternet.com
To: U.S. Metric Association usma@colostate.edu
Sent: Sunday, July 24, 2011 11:10:57 PM
Subject: [USMA:50914] RE: Ditch the viss, govt
From the State Dept.'s Burma page, I would guess we have a pretty strained
relationship with Burma
(scroll down to US
sanctions). http://travel.state.gov/travel/cis_pa_tw/cis/cis_1077.html
I doubt we can help or that our help would be welcome.
While the US does not forbid Americans to travel
...by working to achieve U.S. metrication first! Any prevalence of pre-metric
units in the world has to be related to our continued use of them.
Paul Trusten
Midland, Texas
United States
+1(432)528-7724
trus...@grandecom.net
On Jul 25, 2011, at 16:57, ezra.steinb...@comcast.net wrote:
I
At the very bottom, please double-check your joule example. Taking a cup of
coffee as about 150 mL or 150 g, and specific heat of water as 4.2 J/(g·K), I
get around 630 J, not 1 J, from 1 K of cooling. (that's using the coffee
institute's official coffee cup, mine is about 400 mL).
NOTE: A
Yes, but 1 Nm (and your small apple example) represent 1 J. Your 240 mL cup of
coffee cooling 1 K represents 1 kJ, not 1 J as described. The issue is not
really the 150 mL vs 240 mL but the factor of 1000.
I am perhaps a little worried that thousands have not noticed the factor of
1000.
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