That state of metric conversion in the US

[Uwe Hercksen]

As it relates to ANSI.

A size

2 A = one B

WTF are you on about?

2 B = 1 C

2 C = 1 D

Hello,

these formats divide the area by a factor of 2, but the aspect ratio is
not the same for each format. A and C have the same aspect ratio, also B
and D have the same aspect ratio, but A and B have different aspect
ratios, also C and D.

Only when the aspect ratio is sqrt(2) you may fold it in half and get
the same aspect ratio for the next smaller format also. A0, A1, A2, A3,
A4 and so on have all the same aspect ratio of sqrt(2).

I hope you understand now what I mean.

Bye

 

[Richard Henry]

Canada reverted back to pounds for food and US gallons which are smaller when free trade started and US goods appeared cheaper as did any food by the pound rather than kg or 2.2lb.

old People still use inches, feet &miles if they prefer but are equally conversant in millimeters and km

But to use 'F which is non-linear is so wrong to be used by any engineerscompared to 'C.

The cost of education unfortunately is higher than the benefits of converting to metric for Americans, so they shall be in their archaic units of measure for a long time.

How is C any more linear than F?

 

[[email protected]]

Hello,

well you should have done some math:

the aspect ratio of A sized drawings being 8.5 by 11 is 1.2941, of B
sized being 11 by 17 is 1.5454 and C sized being 17 by 22 is again 1.2941..

You may scale from A size to C, but not from A to B or from B to C or
vice versa. You can only scale by a factor of 2.

Using the european formats A0 to A6, you are always able to scale by a
factor of 1.4142 or 2 or 2.88284 or 4 up and down.

Bye

You might have done some math also. Going from A to B. the area
doubles. Going from B to C the area doubles. Etc. So it scales but
by area not linear dimension.


Dan

 

[John Devereux]

Wow. I can't beleive that europe is so helpless. We have no trouble
scaling a size 'E' down to A, B, C or D There is always a border on a
print so what does it matter, other than for you to be a pain in the
ass?

It makes more efficient use of the available area. Can't you see that
that is better? You can't admit that just in this one tiny thing the
Europeans had a good idea? American paper sizes are all different
shapes... but at least they are *American* shapes goddam it!

 

[John Devereux]

Yawn. You can't counter without cursing.

Sorry, misspelt "god-darn".

Just an attempt to satirize your attitude and perhaps inject some
humor...

It makes no practical difference, and working copies end up with lots
of notes in those 'wasted areas'.

That's right, and the ridiculously arcane conversions with american
units excercise the brain. Look on the bright side!

You like Metric, only because it's
French and you can't get enough of them.

Yes that's it, the notorious British love of the French. We just can't
get enough of them you know!

Au revoir

 

[Gib Bogle]

It makes more efficient use of the available area. Can't you see that
that is better? You can't admit that just in this one tiny thing the
Europeans had a good idea? American paper sizes are all different
shapes... but at least they are *American* shapes goddam it!

Freedom fries!

 

[Gib Bogle]

See what unstable leaders do to the economy?

I blame that socialist Obama!

 

[Spehro Pefhany]

How is C any more linear than F?

ObTrivia:-

The original scale that Fahrenheit used was based on three fixed
points, and in fact was only piecewise linear. Of course that's not
the scale which now bears his name.

 

[John Devereux]

In England, syphilis was "the French disease." In France, syphilis was
"the English disease."

Top news item here for the last two weeks... Someone DNA tested a
leading brand of frozen beef lasagne and found it was 10%-100% horse!
Imported from continental Europe, home of those horse-eating Frenchies.

They are now in the process of testing all the other "beef" products.

Don't know what all the fuss is about, a bit of horse never did anyone
any harm (tosses head... <neigh> <whinny>).

 

[John Devereux]

I blame that socialist Obama!

I thought he was a muslim? Can muslims be socialist too?

 

[[email protected]]

No, *STILL*, dumbass. You insist on proving it with every post.

You're really not very good at this, are you?

No, I'm not a perfect dumbass, like you. That's obvious.

 

[[email protected]]

Hello,

it is not very nice to manually rout a PCB when you got a mix of parts
with different pin distancesbased on inch and mm, for instance 100 mils
and 2 mm.

Every board I've done in the last 20 years has had a mix. I don't see
that changing, at least in my lifetime. ".100 (and less so, .050")
spacing connectors will be with us forever. I don't see it as an
issue, though. PCB layout software is quite happy working in both
systems.

 

[[email protected]]

You might have done some math also. Going from A to B. the area
doubles. Going from B to C the area doubles. Etc. So it scales but
by area not linear dimension.

Two As (portrait) side by side makes a B (landscape). Two Bs, a C.
Two Cs, a D...

It really does make sense. Europeons are the ones who have to have
everything figured out for them. It's probably a function of being
brought up as a ward of the state.

 

[[email protected]]

I thought he was a muslim? Can muslims be socialist too?

Obviously.

 

[Tim Williams]

Two As (portrait) side by side makes a B (landscape). Two Bs, a C.
Two Cs, a D...

It really does make sense. Europeons are the ones who have to have
everything figured out for them. It's probably a function of being
brought up as a ward of the state.

Whatever mathematical function you wish to pull out, European paper has
the best. sqrt(2) is the only aspect ratio that solves the constraint of
having the long side of size N equal to the short side of N+1 (or, A(N-1)
rather).

I don't like A4 because the aspect ratio sucks. Not only is it illegible
on 1080p monitors (which, incidentally, have an even more despicable
aspect ratio), it simply looks bad with text flowed over. Has no
aesthetic, even with the best choice of margins. 8.5 x 11 is a more
comfortable ratio. So, too, 1600 x 1200 (speaking of which, you can pry
my Trinitron off my cold, dead body ).

Tim

 

[rickman]

A pint of what? Scotch, maybe? 20 ounces Imperial is 1-1/4 pounds of
water, more or less exactly. 16 US ounces of water is about 1.04 pounds.

Last time I checked, a pint was *exactly* 16 fluid ounces regardless of
what was in it.

 

[Jamie]

108 mils, 100 mils, 50 mils, 20 mils, 2 mm, 1 mm, 0.8 mm... the list
is endless.

My grand mother was a good cook. Her way of measuring content
of salt, sugar etc., was a dash of this and a dash of that!

I wonder if the metric system has a replacement for that!


Jamie

 

[Richard Henry]

  My grand mother was a good cook. Her way of measuring content
of salt, sugar etc., was a dash of this and a dash of that!

   I wonder if the metric system has a replacement for that!

  Jamie

In my first college chem lab session I was told that a drop of water
was 1/10 ml.

 

[[email protected]]

Whatever mathematical function you wish to pull out, European paper has
the best. sqrt(2) is the only aspect ratio that solves the constraint of
having the long side of size N equal to the short side of N+1 (or, A(N-1)
rather).

Huh? ANSI A,B,... have the short side of A+1 equal to the long side
of A. A-size is 8.5x11, B=11x17, C=17x22, etc.

I don't like A4 because the aspect ratio sucks. Not only is it illegible
on 1080p monitors (which, incidentally, have an even more despicable
aspect ratio), it simply looks bad with text flowed over. Has no
aesthetic, even with the best choice of margins. 8.5 x 11 is a more
comfortable ratio. So, too, 1600 x 1200 (speaking of which, you can pry
my Trinitron off my cold, dead body ).

European is the best but you don't like A4? Someone is tired tonight.
It might be me, though.

I'm with you on 16:9. I much prefer 16:10 (this one is 1920x1200),
but they're much more expensive. You can have 4:3 *AND* CRTs, long
may they remain cold. *ick* (my monitors at work are 4:3 -
1600x1200)

 

[[email protected]]

Last time I checked, a pint was *exactly* 16 fluid ounces regardless of
what was in it.

But not 16 ounces (avoirdupois).