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Metric or not?

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kawakid
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PostPosted: 00:58 - 22 Nov 2005    Post subject: Metric or not? Reply with quote

Just a thought at my 33 years, i wouldn't know a metre from a sausage.

But I do understand some of it, whilst I think In miles and feet and inches, I realise youngsters might not.

What does everyone think?

https://www.ukma.org.uk

Personaly I think they are a bunch of c*nts.
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Silver
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PostPosted: 01:02 - 22 Nov 2005    Post subject: Reply with quote

I tend you use what I can visualise; a 100m running track, 100 yard motorway marker, multiples of 6ft (my height, near enough), 12 inches..... Shifty
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stinkwheel
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PostPosted: 01:04 - 22 Nov 2005    Post subject: Reply with quote

Imperial for estimates, metric for maths is my system. 12" is easier to visualise than 300mm.

As a friend has pointed out to me at great length. When it comes to engineering, imperial threads are designed for optimum strength and function, metric ones are designed for mathematical convenience.
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SoND
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PostPosted: 09:45 - 22 Nov 2005    Post subject: Reply with quote

Quote:
As a friend has pointed out to me at great length. When it comes to engineering, imperial threads are designed for optimum strength and function, metric ones are designed for mathematical convenience.


I can't understand how that would work, but ok.

I use metric everyday at work, it's far easier to work with than imperial. Maybe because I was never taught how to work with it properly.
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Mister James
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PostPosted: 11:21 - 22 Nov 2005    Post subject: Re: Metric or not? Reply with quote

mondeokid wrote:
Just a thought at my 33 years, i wouldn't know a metre from a sausage.
.


That could put you in a tricky situation, if a German gentleman asked you what size wurst you'd like with your Bier!

I suggest you at least work out how big a metre is, to avoid any giant sausage mishaps!

O/T - Silver's method is the one I use, comparing stuff to distances I know for sure.

Running a mile, for example, would be roughly equivilant to the the 1500m of hell I was forced to run in every athletics lesson at high school!
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stinkwheel
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PostPosted: 12:19 - 22 Nov 2005    Post subject: Reply with quote

SoND wrote:


I can't understand how that would work, but ok.

I use metric everyday at work, it's far easier to work with than imperial. Maybe because I was never taught how to work with it properly.


Yes it is easier, that is because the thread sizes were designed to be easy on the noggin when it comes to working out the mathematics. The threads are a mathematical proportion of the diameter of the bolt, sizes are rounded to a convenient level.

A lot of the imperial sizes (Unified is a good example) have been worked out so the pitch and depth of the thread gives the highest possible strength regardless of how awkward this is when it comes to doing the sums.

They use vulgar fractions a lot too which can take a bit of getting your head round. These are also ultimately more accurate. Say you landed up with 8/24". Trying to express this as a decimal will always be less accurate.

So, the metric is easier to work with but the imperial will ultimately be stronger.
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ZRX61
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PostPosted: 14:53 - 22 Nov 2005    Post subject: Reply with quote

stinkwheel wrote:
So, the metric is easier to work with but the imperial will ultimately be stronger.

& Whitworth is stronger than BSF, BSC, BA, BSP etc (which just confused the hell out of the kids on here..)
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BFG
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PostPosted: 14:55 - 22 Nov 2005    Post subject: Reply with quote

stinkwheel wrote:
As a friend has pointed out to me at great length. When it comes to engineering, imperial threads are designed for optimum strength and function, metric ones are designed for mathematical convenience.


It's nice to see the old rose-tinted urban myths are still doing the rounds. Smile

The pitch of a thread is created by a lathe. They use thread feeds which control the movement of the tool along the workpiece. There is only a finite number of cogs in an old lathe gearbox and the imperial threads were designed to match the gearing commonly available on lathes at the time.

So they are equally a compromise of practicality over function.

I could go on, but it gets very boring. I spend years designing aircraft and military components with highly unusual threads. Talk about dull though.
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Jack_Cheese
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PostPosted: 17:27 - 22 Nov 2005    Post subject: Reply with quote

The important measurements:

Imperial first -
Pint - Beer
Ounce - Weed
Miles - Per hour

There are no real important measurements in metric, none that lead to a happy life, such as the above Thumbs Up Mr. Green

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0ni
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PostPosted: 17:47 - 22 Nov 2005    Post subject: Reply with quote

Being 20 and having never been taught imperial measurements I really struggle with fractions! My mindset is 99% metric, distances, weights volumes etc. The first time I really used any amount of imperial was learning how to drive and (sort of) nautically.

I struggle to imagine what its like to not think metrically probably similar to how you old dears think about not thinking the old fashioned way Wink
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GBUK101
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PostPosted: 17:50 - 22 Nov 2005    Post subject: Re: Metric or not? Reply with quote

mondeokid wrote:
Just a thought at my 33 years, i wouldn't know a metre from a sausage.



Hey, I'm 38 and have no idea how the imperial stuff works at all. We never touched the stuff when I was at school, it was all metric.
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sickpup
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PostPosted: 20:37 - 22 Nov 2005    Post subject: Reply with quote

ZRX61 wrote:
& Whitworth is stronger than BSF, BSC, BA, BSP etc (which just confused the hell out of the kids on here..)


You bastard you just fucked up their fragile little minds.
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selfdestructi...
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PostPosted: 20:53 - 22 Nov 2005    Post subject: Reply with quote

I deal in metric at work every day (as an engineer) and get by most of the time untill I get a drawing from the USA which are all in inches, or have to take bits off Harleys - because all the fasteners are imperial. I think most Americans have never even heard of the metric system.
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ZRX61
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PostPosted: 22:06 - 22 Nov 2005    Post subject: Reply with quote

selfdestructiveplague wrote:
I think most Americans have never even heard of the metric system.

My F350 running gear is all imperial, but the body stuff is all metric...
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mistergixer
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PostPosted: 18:01 - 23 Nov 2005    Post subject: Reply with quote

I'm sorry to admit it, but to a mathematically challenged person like myself, the imperial system seems to have been designed as an ancient instrument of mental torture; firstly it's all bloody fractions, secondly it's not all in divisions of 10(so i can use the 10 digits on my hands), and thirdly it's all bloody random(like 12 ounces to a pound, but 14 pounds to a stone, plus all the wierd stuff like rods, chains, cables, furlongs, leagues, pecks and bushels).
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kawakid
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PostPosted: 23:42 - 24 Nov 2005    Post subject: Re: Metric or not? Reply with quote

Quote:


Hey, I'm 38 and have no idea how the imperial stuff works at all. We never touched the stuff when I was at school, it was all metric.



Just a thought:

How tall are you?
How much do you weigh?
How far is it from your home to your work?
How much did your kids weigh when they were born?
When you were giving milk to your babies,how big was their feed?
How big is your living room?
How tall is your wife?
What's the fastest you've been?
Wha'ts your bike's fuel consumption like?


Are you telling me you answered all these in metric.
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tonyyzf
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PostPosted: 06:04 - 25 Nov 2005    Post subject: Reply with quote

I'm happy using either, if i'm measuring something it can end up being a mixture of both, 8ft 3inches and 2mm for example, or whatever mark on the tape is closest.
I don't think this country will ever be totally metric.
The worst thing is when you're working on a machine thats made up of components from the USA or Canada, like the Argocat, its got a Kawasaki engine (metric), and a Canadian gearbox (imperial) and some of its body part screws are whitworth.
The older Landrovers were the same, unf and whitworth, you never had the right spanner in your hand, hence heaps of rounded nuts and bolts.
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Robby
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PostPosted: 16:05 - 25 Nov 2005    Post subject: Reply with quote

I get by with a combination of the two.

I know I weight 12 stone, which is about 75 kilos. I know how much a stone is, I know how much a kilo is, I have no idea about pounds and ounces.

Fuel annoys me. If I want to work out the mpg of my car I need to convert the litres of fuel into imp gallons first. Would much rather buy my fuel in gallons.

I have no idea how tall I am in metric, but I hate to deal with imp nuts and bolts.

Would be nice if we could decide on one system or the other.
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loply
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PostPosted: 16:20 - 25 Nov 2005    Post subject: Reply with quote

Being young I work entirely in metric.

You imperial lot can clearly not deny that 3mm is better than 2/64ths!

What size spanner do you want, size M1, M2, M3, M4 or M5? Simply numeracy.

...Or in imperial, 2/16ths, 3/8ths, 9/131sts or a half-pigney? Ridiculous.

Metric is far superior. Sorry to those who cant visualise it instinctively because of habit, but it is indeed right and proper that imperial is replaced with the more logically inspired metric system.
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stinkwheel
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PostPosted: 16:37 - 25 Nov 2005    Post subject: Reply with quote

Ok smart arse. Accurately express 1/3" in mm.
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colin1
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PostPosted: 17:02 - 25 Nov 2005    Post subject: Reply with quote

why would u want to do that ?
metric bits are made to metric standard sizes so we cd ditch imperial completely

stink u jst spend too much time with some ppl who are stuck in the 'when bikes were proper bikes' days
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ZaphodBeeble
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PostPosted: 17:13 - 25 Nov 2005    Post subject: Reply with quote

1 third of an inch is 8.466666666 (recurring 6) millimetres. Can't get any more accurate than that. It can be written down more accurately than it can realistically be measured. It's each to his own I believe. If you like metric work in metric and the same goes for Imperial. Metric just makes more sense as it's powers of 10. Thumbs Up
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colin1
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PostPosted: 17:17 - 25 Nov 2005    Post subject: Reply with quote

you never need more than 3 significant figures anyway.
2 is plenty
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Teaman
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PostPosted: 18:25 - 25 Nov 2005    Post subject: Reply with quote

i work in millimeters , actually its 1000th of millimeters lol

im 6 foot 4 which is 195 cm
95 kg i think , but not a clue what that is, im about 15 stone,
Im Brittish i work in miles per hour and drink pints,,
do i look like a chocolate munching brussles person thingy?
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Odie
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PostPosted: 19:41 - 25 Nov 2005    Post subject: Reply with quote

Now heres one for you: when using your tool kit do you have a 1/2 inch, 1/4 inch and 1/8th drive sockets and drives? lol
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