Why Ilford printing paper has not the 3/2 ratio in dimensions like of a 35mm film

[JerseyDoug]

Are horseshoes sold in metric sizes? What about hay bales?

Some horseshoe manufacturers size them in inches, some in millimeters. Conversion tables for the major manufacturers are available online. As far as I know, most high-end racing shoes are in metric sizes.

 

[koraks]

As far as I know, most high-end racing shoes are in metric sizes.

The race horse manufacturing industry transitioned to metric in the early 1910s due to shortages of reliable imperial measurement devices. They previously relied on the width of the thumb of the head of the QA department of the race horse assembly line, but this benchmark became unreliable after an unfortunate incident involving a hammer and said thumb.

 

[Sirius Glass]

Some horseshoe manufacturers size them in inches, some in millimeters. Conversion tables for the major manufacturers are available online. As far as I know, most high-end racing shoes are in metric sizes.

The race horse manufacturing industry transitioned to metric in the early 1910s due to shortages of reliable imperial measurement devices. They previously relied on the width of the thumb of the head of the QA department of the race horse assembly line, but this benchmark became unreliable after an unfortunate incident involving a hammer and said thumb.

I forgot. Which horses are metric and which are US Standard. Please advise.

 

[DREW WILEY]

Horses are measured in "hands". But whose? Race horses are measured in hundreds of thousands of dollars of investment instead.

 

[Sirius Glass]

Horses are measured in "hands". But whose? Race horses are measured in hundreds of thousands of dollars of investment instead.

I am confused. Metric hands, US Standard hands or Imperial hands. I am wringing mine awaiting an answer.

 

[Pieter12]

Somehow, car wheel diameters are still in inches, no matter where the car is manufactured. Anyone know why?

 

[Craig]

Somehow, car wheel diameters are still in inches, no matter where the car is manufactured. Anyone know why?

I don't know why. There were some cars with metric sized rims in the 80's, but they didn't last long as the tire choices were very limited. Most owners got rid of the metric rims when it became cheaper to buy new rims+ inch sized tires than new metric sized tires.

Auto air conditioning is another place where inch measurement is common. Even on Japanese and European vehicles, the tube/hose and fitting sizes are generally the standard inch sizes.

 

[DREW WILEY]

Most of my darkroom graduates and flasks come with three sets of markings : US fluid ounce fractions, Brit fl oz, and liter, ml, markings. That makes it easy. With cereal and cookie boxes, it makes little difference what size the packaging is measured in, since the content is "sold by weight not volume" - the old metaphor for the face you're paying for a bunch of empty air too.

 

[JerseyDoug]

A lot of the metric vs imperial business is historical. All piston rings are metric because the first machines that mass produced piston rings were made in France and everyone copied them. All ball bearings are imperial because the first machines that mass produced ball bearings were made in Britain and everyone copied them.

 

[cmacd123]

There was just a fun one in the paper today. Hagen-Dais decided to switch to a 473 Ml size for Ice Cream, it had previously been sold in Canada in a 500Ml size. New package is the same price as the old one. Hagen-Dais says that 473ml is the size they use in "Other counties" (such a nice rounded off measure)
However, the Tax depertment says that Ice cream in a 500Ml or larger continer is "Groceries" and exempt for Sales tax. Less is a ready to eat treat, and so now the package incurs the handy Dandy 13% HST when sold.
why did they not just standardize on a half Liter?

this article MAY be behind a paywall... https://www.theglobeandmail.com/business/article-shrinkflation-ice-cream-tax/

 

[mshchem]

I learned Metric as a child in public school.

Aspirin came in 5 grain tablets

20 schillings in a pound, 12 pence per schilling, 240 pence per pound etc. (I hope this is right old UK system) Sound as the Pound!!!

Clearly we could probably save trillions of dollars, save countless lives and maybe even solve climate change if EVERYONE was used metric system.

 

[mshchem]

GRAMS PER OUNCE

 

[koraks]

GRAMS PER OUNCE

Doesn't look familiar to me.
We have an informal measure that translates as ounce in English, but it's a firm 100g. It's also not recognized officially; i.e. shopkeepers can't use it in advertising etc.

 

[Pieter12]

There was just a fun one in the paper today. Hagen-Dais decided to switch to a 473 Ml size for Ice Cream, it had previously been sold in Canada in a 500Ml size. New package is the same price as the old one. Hagen-Dais says that 473ml is the size they use in "Other counties" (such a nice rounded off measure)
However, the Tax depertment says that Ice cream in a 500Ml or larger continer is "Groceries" and exempt for Sales tax. Less is a ready to eat treat, and so now the package incurs the handy Dandy 13% HST when sold.
why did they not just standardize on a half Liter?

this article MAY be behind a paywall... https://www.theglobeandmail.com/business/article-shrinkflation-ice-cream-tax/

Many packaged goods are now being downsized instead of raising the price. But I guess in this case the Canadians got screwed twice on the deal.

 

[MurrayMinchin]

Many packaged goods are now being downsized instead of raising the price. But I guess in this case the Canadians got screwed twice on the deal.

Yup...it's even got a name...shrinkflation.

 

[MurrayMinchin]

Here's another one. Apparently peoples pumpkin pies were turning out watery until someone figured out they were putting in less pumpkin and more water to keep the can the same size and weight. Boooooo!

 

[Vaughn]

I believe it is/was common at Kodak to measure emulsion applied to the film base by the ml per sq inch. It is how I pour my carbon tissue (an activity which has occupied my time today...except for a walk along the river with a lovely lady and her dog).

I generally pour my carbon tissues at the rate of 1.2 ml per square inch. Such fun with warm thick Jell-O! Nine 12.5" x 19" sheets hanging in my bathroom to dry. no showers for a couple days!

 

[grain elevator]

View attachment 333160

GRAMS PER OUNCE

Source? Context? Must be historical; continental Europe doesn't use such a thing except the troy ounce for precious metals (but if it is historical, it is certainly wildly simplified as there were far more states back when continental Europe used such measurements, which would have had their own measurements).
Btw. I'm m pretty sure ball bearings are not in inches in Europe. Some plumbing standards and bicycle wheels (at least nominally), and the square drives on socket wrenches are in (fractions of) inches though.

 

[Craig]

All ball bearings are imperial because the first machines that mass produced ball bearings were made in Britain and everyone copied them.

There are plenty of metric sized bearings today. When I look at the SKF catalogue for ball bearings I have 126 choices in the inch series sizes and 1726 metric sizes.

Do you really believe that Ford and GM in Detroit in the 1960's used metric sized piston rings? I'd say engines with a bore of 4.000" are not metric sized.

 

[Sirius Glass]

All spark plugs are metric. When Henry Ford wanted a durable well working spark plug the only source that was strong enough and consistent enough was Bosch and the metric thread became standard in the US.

 

[snusmumriken]

All spark plugs are metric. When Henry Ford wanted a durable well working spark plug the only source that was strong enough and consistent enough was Bosch and the metric thread became standard in the US.

In the 70s and 80s, when for economy I had to maintain my own car, spark plug gaps for UK-built cars were nevertheless quoted in thousandths of an inch. Actually I never saw Bosch plugs back then, only Lucas or NGK.

I believe it is still the case that much of the plumbing in the world was originally built with Imperial sizes and threads, and therefore repairs require the existence of Imperial:Metric adapters, or the continued use of Imperial fittings. Not saying this is good, just pointing out the messy situation.

 

[Alan Edward Klein]

In the 70s and 80s, when for economy I had to maintain my own car, spark plug gaps for UK-built cars were nevertheless quoted in thousandths of an inch. Actually I never saw Bosch plugs back then, only Lucas or NGK.

I believe it is still the case that much of the plumbing in the world was originally built with Imperial sizes and threads, and therefore repairs require the existence of Imperial:Metric adapters, or the continued use of Imperial fittings. Not saying this is good, just pointing out the messy situation.

My Acura dealer in New Jersey wants $480 to replace my spark plugs (6 cylinders) in a 2012 TL with 120,000 miles. I think they're pricing is nuts so have held off doing it. It's recommended to replace them at 100,000. The plugs are made with some special metals that last long. Give me a break!

 

[Sirius Glass]

My Acura dealer in New Jersey wants $480 to replace my spark plugs (6 cylinders) in a 2012 TL with 120,000 miles. I think they're pricing is nuts so have held off doing it. It's recommended to replace them at 100,000. The plugs are made with some special metals that last long. Give me a break!

They were probably also replacing the ignition wires which over time deteriorate. It is a complete system, not just spark plugs.

 

[Craig]

My Acura dealer in New Jersey wants $480 to replace my spark plugs (6 cylinders) in a 2012 TL with 120,000 miles. I think they're pricing is nuts so have held off doing it. It's recommended to replace them at 100,000. The plugs are made with some special metals that last long. Give me a break!

Yes, the plugs are usually platinum or iridium tipped, and it does make them last much longer. Regular copper plugs would never last 80,000 miles, you would have significant erosion and gap opening in that time.

The other thing with leaving them in that long is they can corrode to the cylinder head. Removal then becomes very difficult and the chances of threads being galled and tearing out of the cylinder head becomes much greater. I certainly wouldn't want to be the mechanic who has to change your plugs, it will be a delicate job.

I expect the bulk of the cost is labour, as getting to the plugs on a modern engine isn't as simple as it used to be.

 

[Sirius Glass]

Yes, the plugs are usually platinum or iridium tipped, and it does make them last much longer. Regular copper plugs would never last 80,000 miles, you would have significant erosion and gap opening in that time.

The other thing with leaving them in that long is they can corrode to the cylinder head. Removal then becomes very difficult and the chances of threads being galled and tearing out of the cylinder head becomes much greater. I certainly wouldn't want to be the mechanic who has to change your plugs, it will be a delicate job.

I expect the bulk of the cost is labour, as getting to the plugs on a modern engine isn't as simple as it used to be.

"The other thing with leaving them in that long is they can corrode to the cylinder head." Would not be a performance enhancer.