Originally Posted by Benz
Being unable to think in Metric (which is really one of the worst inventions of mankind)
Eh? I remember having similar thoughts when we went to metric. I was almost finished primary school
and learned all the imperial units (which are slightly different to yours BTW).
Then we had to learn metric, so I had the benefit (though it didn't seem that way at the time) of learning
both systems while still at school
As someone else mentioned, the main issue is when you are converting between units. Having used both systems for many years, I can now say that I prefer metric for virtually everything. After dealing for years with 5,280 foot or 1,760 yard miles and 66 feet in a chain and 16oz in a pound and 22 hundreweight or 2,240 lbs in a ton, metric is something of a relief and I'm happy to work with it. I can convert easily between the major elements of metric and imperial but frankly there is very little need to convert these days. I mean, if you buy fuel
by the litre, why do you need to know how many gallons that is?
A kilogram of water
is one litre. A 1000 kilograms of anything is one metric tonne. One litre of water
is also 1000 cubic centimetres. One kilometre is a thousand metres. For pretty much all your day to day needs, that covers it.
If you keep conversions to the base units, it makes it fairly easy.
Please note that my imperial measures are not all the same as yours, another curse of the imperial system, US and UK measures are not all the same, for instance your US gallons are smaller than our UK gallons, however a litre is a litre everywhere.
A kilogram is 2.24 pounds. Close enough to 2 and a 1/4.
A litre is almost exactly one US quart. 1.05xxxx, which is close enough for most things.
A metre is 3.28 feet or 39.37 inches, so it's about 3 and a 13 inches longer than a yard.
A kilometre is .621 of a statute mile.
The only one of these that are even slightly relevant to navigation
is the relationship to the Nautical mile, ie one minute of latitude.
A nautical mile is 1852 metres.
It's up to you, but I'd say it was easier to remember a half dozen conversions than all the wierd imperial stuff and their (vague or non existent) relationships to each other.
All the metric measurements are related, so if you have a kilo weight, you can weigh a litre of water. If you have a metric ruler, you can measure a thousand cubic centimetre container which will get you a litre of water which weighs a kilogram. If you have a litre container, you can get a kilogram weight.
The only relationship in imperial weights and measures is the somewhat iffy one between pounds and pints, and the UK and US gallon are different volumes, so it's even more complex than it appears at first. And it won't much help you with units of length.
Sooner or later, the US will have to be dragged into the metric world, you are pretty much the last holdouts of an antiquated, complicated system that bears the same relationship to units of measure as the pounds shillings and pence we got rid of in favour of dollars and cents in 1966.
12 pence to the shilling, 20 shillings to the Pound, 21 shillings to the guinea, guess why we went to decimal? Same reason one day, despite all the protests of the hidebound, the US will have to catch up with the rest of the world and adopt the same system. I don't know how much damage or destruction has been caused by US persistence with this complicated and illogical system, but.... here's a glaring example.
a 125 million Mars orbiter because a Lockheed Martin engineering team used English
units of measurement while the agencys team used the more conventional metric system
for a key spacecraft operation..."
"...Lockheed Martin helped build, develop and operate the spacecraft for NASA. Its engineers provided navigation
commands for Climate Orbiters thrusters in English
units although NASA has been using the metric system predominantly since at least 1990."
My italics for emphasis. Note that NASA has been metric for over 20 years, because it's easier to work with the rest of the world that way, because that's what the rest of the world uses.
Imperial weights and measures need to go the way of the dinosaur.
The defence rests.
Ok, now I've probably started something equivalent to the Ferro
v GRP wars and the Multihull
wars. Ce la guerre.