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Imperial measurements just feel better

by vjk2
Tags: feel, imperial, measurements
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davenn
#19
Feb17-13, 07:32 PM
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Quote Quote by kevinferreira View Post
32C is ambient temperature where you live? Are you in the Sahara? Usually room temperature is around 21C.
no, that would be 40C avg/ambient daytime temp

anywhere in the tropics is nominally around the 30C area

Darwin city in northern Australia its temp day or nite doesnt vary much from 30C all year round ( approx 28 - 32)
Where my wife comes from in the southern Philippines is very similar hot and humid 27/7/365

Dave
DaleSpam
#20
Feb17-13, 09:18 PM
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Quote Quote by kevinferreira View Post
The base unit is the gram, as the meter or the liter.
No, the base unit is the kg. Otherwise the derived units would be in terms of g not kg. E.g. 1 N would be 1 g m/s². See:
http://www.bipm.org/en/si/si_brochur...-2/table3.html

Quote Quote by kevinferreira View Post
Then as with all, you have kilogram, kilometer and kiloliter as 1000 times the basic unit. And 1000 kilograms or 1000000 grams will be the 1 Mg (usually called 1ton) as with meter and liters.
It appears that you are correct about this:
http://www.bipm.org/en/si/si_brochure/chapter3/3-2.html
DaleSpam
#21
Feb17-13, 09:30 PM
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What we really should do is:
1) use the Heaviside-Lorentz unit approach to get rid of all units with dimensions other than mass, length, and time
2) use the Geometrized unit approach to get rid of the units with dimensions of mass and time as well as setting the fundamental dimensionful constants all to 1
3) use prefixes to "humanize" units as needed

Given how tightly people have held on to imperial units I won't hold my breath.
Bobbywhy
#22
Feb17-13, 11:59 PM
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Meters and kilograms are not just a craze
That the world is metric doesn’t seem to faze
The US and England who remain in a daze
Confined to their islands immersed in a haze
At two ostriches the world continues to gaze
DrDu
#23
Feb18-13, 01:46 AM
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What's also interesting in that context is the fact that we do not use decimal time although this was proposed during French revolution:
http://en.wikipedia.org/wiki/Decimal_time
kevinferreira
#24
Feb18-13, 03:33 AM
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Quote Quote by davenn View Post
and my only complaint is that ... even tho some dont like to use the metric system
( one particular country in mind ... wink)
I wish they would at least spell the metric words correctly

Metre not meter ... meter is usually a thing with a needle indicating Volts, Amps etc
Litre not liter ... dunno what a liter is ? is it a smaller than usual litter of puppies ? ;)
Tonne not ton

cheers
Dave

... just a little fun dig in the ribs :)
Oh ****!! :) I'm not a native english speaker, and thus I tend to mess it up completely, as you can notice... I'll start writing "mètre, litre et gramme" and this way I have no problems! (yeah right...) :)
kevinferreira
#25
Feb18-13, 03:35 AM
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Quote Quote by davenn View Post
no, that would be 40C avg/ambient daytime temp

anywhere in the tropics is nominally around the 30C area

Darwin city in northern Australia its temp day or nite doesnt vary much from 30C all year round ( approx 28 - 32)
Where my wife comes from in the southern Philippines is very similar hot and humid 27/7/365

Dave
Well, I have no experience to argument against that, in Europe I think people feel fine with 23C...
kevinferreira
#26
Feb18-13, 03:37 AM
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Quote Quote by DaleSpam View Post
No, the base unit is the kg. Otherwise the derived units would be in terms of g not kg. E.g. 1 N would be 1 g m/s². See:
http://www.bipm.org/en/si/si_brochur...-2/table3.html

It appears that you are correct about this:
http://www.bipm.org/en/si/si_brochure/chapter3/3-2.html
Maybe I employed 'base unit' in the wrong way. What I meant was not physically, but 'gram' as being the unit which all other units are compared to, kg being 1000 grams and mg being 0.001 grams. But yes, SI unit for mass is kg.
Crazymechanic
#27
Feb18-13, 03:52 AM
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Well even though no one asked me for my opinion I think that the metric system is easier to convert unit to unit and easier to remember well ofcourse it's like saying that one likes oranges and the other one likes apples as long as their both food but just as @my_wan posted if we could just come to agree to use one system which is better than the other we wouldn't loose progress or in his posted case millions worth of space equipment.
The problem is I think that the US has used their system for so long that it would be quite hard for the everyday man to get used to different system.
Not to mention how many books should be rewritten.
sophiecentaur
#28
Feb18-13, 04:11 AM
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This all demonstrates how we can justify a totally subjective feeling in such erudite ways that we can appear to be objective. We just love what we know.
The real problem with Imperial Units is the stupid ratios of the sub-units. Yards feet inches: tons cwt qrs stones lbs oz dwt. Totally ridiculous. I could ask why the US decided on a decimal currency - what was the advantage?
Bobbywhy
#29
Feb18-13, 04:42 AM
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sophiecentaur is right to point out the crazy ratios involved and conversion factors needed to manipulate Imperial units. The idea that some King’s thumb, or distance from his extended fingertip to his nose should be a standard of measurement is ludicrous. Metrication will eventually become the Global Standard, no doubt. It simply will take an effort and an unbiased attitude on the part of the citizens.

It would be impossible for a country like the USA or Great Britain to change over to the Metric System overnight. Forty years ago (in 1973) there was a movement in the US to begin the changeover, but many citizens simply resisted and/or ignored it. When it finally becomes obvious that it’s necessary to change there will be a period of overlap when both systems are used. It will not be easy for some older folks, and yes, textbooks and more will need to be revised. But eventually our globalized society will function more efficiently when everyone uses the same, SI, logical system of measurement.

For a good discussion see:
http://en.wikipedia.org/wiki/Metrica..._United_States

Cheers,
Bobbywhy
sophiecentaur
#30
Feb18-13, 05:29 AM
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I might point out that the UK is almost totally SI now, apart from miles and pints of beer. Kg, l and Celcius are universal here. We never did do pounds for people's weight. Always stones and pounds.
SteamKing
#31
Feb18-13, 09:57 AM
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All measurement systems are based on some sort of arbitrary convention.

Imperial is derided because of its legendary foundations as being based on a person's proportions.

Metric is equally arbitrary in being based originally on the
circumference of the earth. The French found to their dismay that the earth was not as easy to measure as they had assumed. The meter now is based on the
oscillations of an atom of cesium-137. Anybody got cesium-137 in their fridge?

The point is, if a large enough group of people agree to use the convention, then it really doesn't matter if it is 'easier', 'or this system is superior', etc. Oil is still priced in barrels of 42 U.S. gallons, because a large enough number of people agrees to this convention.

In my work as an engineer, I use USCS and SI often, but I prefer USCS because I have worked with it long enough to gauge relative magnitudes easily. I don't particularly have a problem with the conversions, because they are just numbers.

I find that the number of SI derived units have grown like Topsy, and one needs a
dictionary to keep the constituent units straight. If SI were ever revised significantly, I would hope that the thicket of derived units could be pruned back, and that units with more practical magnitudes substituted for the current ones.

In these forums, you will continue to find students who struggle with SI even though that is all that they have ever known.
Crazymechanic
#32
Feb18-13, 01:38 PM
P: 853
I think the debate is not about is the imperial system wrong or right.
Ofcourse you can achieve a moon landing both designing the rocket with metric numbers or imperial ones.
You rightly pointed out that some know one better some the other and some none but if we would use just one global system instead of two separate ones it would be easier for all.
Now someone can't understand the metric system maybe but he is learning and one day he will understand it and be able to use it but with the imperial one around he now has two systems to remember and use.
I think that's just extra unnecessary information , instead we could agree on the best one (i guess we already have) and use it.
No offense ofcourse you can't just suddenly change the whole nations understanding of measurement but slowly trying to make a more practical world wouldn't be a bad idea would it...
Bandersnatch
#33
Feb18-13, 03:26 PM
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Quote Quote by kevinferreira View Post
Oh ****!! :) I'm not a native english speaker, and thus I tend to mess it up completely, as you can notice... I'll start writing "mètre, litre et gramme" and this way I have no problems! (yeah right...) :)
Don't let yourself be bamboozled by davenn's joke. Both the -er and -re spellings are proper English, only the first one is American English dialect, and the other is British English.
Works the same with e.g. center and centre.

A "tonne" is equivalent to saying a "metric ton".


One just needs to remember to be consistent with usage of dialects from either side of the pond.
kevinferreira
#34
Feb18-13, 03:58 PM
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Quote Quote by Bandersnatch View Post
Don't let yourself be bamboozled by davenn's joke. Both the -er and -re spellings are proper English, only the first one is American English dialect, and the other is British English.
Works the same with e.g. center and centre.

A "tonne" is equivalent to saying a "metric ton".


One just needs to remember to be consistent with usage of dialects from either side of the pond.
Yes, I know that, it was just kind of contradictory to be on the side of the metric system and use American English words to write it down.
rock.freak667
#35
Feb18-13, 04:06 PM
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Quote Quote by kevinferreira View Post
32C is ambient temperature where you live? Are you in the Sahara? Usually room temperature is around 21C.
I live in the Caribbean :)


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