That's six feet in Spanish (6/seis pies, pronounced "pee-ays")
@Sexy Homunculus, I think you mean pee-ehs.
@Sexy Homunculus, but I though if yuuu lived in 'murica yuuu gottsta speek 'murican? An ain't nuthin moor 'murican than Appul Pie!! * Fires ar15 into the air while chugging a white claw
I think at some point in highschool, one of my teachers told us that the reason we didn't switch to the metric system was because it would cost to much to make and replace all of the road signs, not sure how true it is though
@Sivls, I don't know about just road signs...but idea is there. Think of every textbook or computer program/software that would have to be changed. It would either take a lot of money, or a lot of time
@Sivls, I did look it up and the debate when this country was founded, it had to be decided how to do weights and measures. Thomas Jefferson as secretary of state had heard about the new french metric system, but he (and even France until much later) decided to go with the british imperial system instead. From what I read, the biggest reason we haven't switched is because we were using the imperial system at the time of the industrial revolution. After that, it would have been very costly and difficult to switch, and only gets more difficult and costly the longer we use the imperial system.
@Sivls, I heard the reason we didn't switch to metric dates back to the american revolution. England changed and the Americans refused to as an act of rebellion. Probably not true, but I like the idea too much to fact check it
@Sivls, the US tried to adopt it in the late 60s, the issue was too many existing systems such as underground pipe that are already 15 in, 18 in, etc would be made as 18.1 cm and 45.72 to match. So in a way, they would have to replace entire sections of sewer to keep diameters consistent and change the manufacturer equipment and specs
@Jkolpas, replace a section, drop in 2 adapters. Close enough. Done.
@jayne cobb, And yes, it gets complicated. All the building codes would need to be updated as well. There aren't really clean conversions from one to the other. Also, cars in the US have MPH as the main display, while Canada has KM as the main display.
Also, fun fact, Canada uses the US Building codes so a lot of their buildings are done in Imperial, hence they don't really use metric tape measures.
So let's say we CTRL+F, Replace everything and put up signs, most software won't work since it is so deeply integrated, so ok, maybe some can push a software update, but what about the big machinery built decades ago with no real way to update the software?
@mas2de, That gets expensive, and not quite that simple. Adapters can affect (reduce) flow rate and pressure. And honestly, there is still no centralized map for even where everything is under the ground. And now you have to keep track what system it is in?
I did a project in college that used both Metric and Imperial in the same model. It was a mess to keep track of the units. Absolute crap-shoot.
@bowlnmike, as an engineer, flow rate is slightly reduced, sure. Not much depending on the situation. There is nothing magical about one system of measurement over the other nor between them. The "old" machines that can't be reprogrammed can still be used just the same. 25.4 mm = 1 inch. 1 sec is still one 1 sec. Manual machines can't be reprogrammed but can still used for all but metric threading unless using a tap or die. Everything computer controlled Can be reprogrammed. Everything manufactured is already made in places that can do it in metric or imperial. They dc, though they may prefer to work in one over the other. Metric plumbing works seems to well enough but honestly a few mm in large piping to make it close to inch standard isn't a big deal.
It would take probably 50+ years before all common systems were replaced. Most should just be retrofitted with the new standard as needed. No need to dig up something just to swap it. And when something breaks, it can be fixed with old
@mas2de, the old standard sizing. Then upgraded once the whole line needs to be replaced. So there would probably be about 50 years of confused people but then almost the whole world including every major superpower would be using rhe same system of measurement.
Most US and metric stuff is already pretty similar. You think 0.34 mm^2 was just a nice size for a metric wire? No. That's the metric standard for 22 AWG wire. How big is 6mm pipe really? How close to ¼" is it? Pretty close. Close enough for adapters or swaged in-situ fittings be close enough. Will it be annoying? Yes. But the reason we haven't changed is money. It will allegedly cost too much and there isn't enough incentive to change over. Even American cars are already almost all metric. Except lug studs and nuts basically. It'll be annoying for the guys going from blueprints to hands on. But it's not like they can't figure it out 99% of the time nor that everything has to be replaced for the sake of the new standard.
@mas2de, 2 adapters from the US standard of piping or anything really on something like even a 20' run of pipe isn't going to make any noticeable difference to anyone. Period. But that short length would be silly. Just keep that all the same. When a sewer line hits 100, it should probably be replaced anyway and then with the new metric size. That will probably be nearly indistinguishable from the old sizing anyway. Claiming that machines or shops can't make the change is stupid. They already work in metric often enough anyway. Claiming the workers can't figure out the difference over decades is, well that's just rude to them. They may not be Einstein but they can figure out how to adapt to slight changes like that. This is ½" pipe. Now it's 12.7 mm pipe. This is an adapter between the two because now it uses G-½ or BSP instead of ½" NPT. Not that big a deal.
@mas2de, I design hydraulics in small-lightweight environments. It would be great if it was all the same, but even NPTF vs NPT is enough of an issue. I can't just add adapters to everything to go from BSP to NPT to ORB, etc. It adds weight and room for leaks. While I try to minimize conversions, sometimes it is required due to manufacturer differences on the end item or locality differences.
In my case, use of an adapter should only be used where absolutely necessary.
There is also the upfront sunken cost of retooling the machines to make different threads, and, not to mention production costs can vary depending on type and service costs. SAE-ORB is expensive over time due to the O-Ring. NPTF has tighter tolerances than NPT.
How come the world doesn't use the same voltage or hertz? It is almost the same thing.
@bowlnmike, systems like that are those that will not be getting adapters then. Too small, or too much of a PITA or not really needed? Just keep it the same. On the next model, make it metric. It'll be a pain for the guys swapping parts between things like tractors though. "This hose won't work on that new nearly identical backhoe because they switched to metric. Damned commie bastards." Will be a common statement. Lol. But 50 years later it won't hardly be a big problem. In 100 years it would be an exceedingly rare issue.
Can't blame us for that one. Blame the Spanish!
I kid u not, I saw a sign on a city bus to keep ONE LLAMA apart. Cuz apparently that's 6 ft.
Englanders forgot that just because they tried colonizing everywhere doesn't mean everything is english