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*Subject*: [amsat-bb] Re: AMSAT-NA totally metric?*From*: Tony Langdon <vk3jed@xxxxxxxxx>*Date*: Sun, 21 Jan 2007 13:16:33 +1100

At 06:48 AM 1/21/2007, you wrote: >Here is an excerpt on the Canadian metric conversion experience. >Still today we >tend to convert to the old english system (old generation) but the new >generation are fully imbedded in the SI system. Conversion was pretty painless in Australia. I recall the latter years of dual measurements, just before we went metric only. Nowadays, everyone uses metric for weather related parameters, temperature, wind speed, pressure. For everyday use, most people use metric or a mix of metric and the older units in everyday conversation. I am well versed in both systems, because of the time I grew up with and a natural aptitude for dealing with different measurements, and these days, I can do a lot of common conversions in real time in my head (as reasonably close approximations). >The harder part is the temperature system and the volume measures. A big plus >it is a decimal based system no more 1/64 1/32 and so on odd fraction. As in >Asterix a small village still resist the conversion... Temperature seemed to be easier here, one rarely hears anyone use Farenheit here. Volume has some lingering artefacts (e.g. people still speak of "44 gallon drums", not "205 litre drums"). >I remember the advertisement campaign at that time "don't convert >think metric" >easier to say than doing. I can still think in terms of either system directly, without having to convert. :) In any case, when it comes to mathematical purposes, SI units are much easier to deal with - less oddball constants that have to be thrown into equations. I'm glad my university days were long after conversion to SI here. :-) And the speed of light happens to be a much nicer constant to work with (for calculating propagation delays and wavelengths). 300,000,000 m/s is much easier than 186,000 miles/sec for quick mental calculations! ;) 73 de VK3JED http://vkradio.com _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

**Follow-Ups**:**Re: AMSAT-NA totally metric?***From:*kc6uqh

**References**:**AMSAT-NA totally metric?***From:*G. Beat

**Re: AMSAT-NA totally metric?***From:*Luc Leblanc

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