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Old 21-10-2015, 01:26   #376
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Re: Convenience of the metric system

Just to keep things moving along - think pipe and fitting threads

NPT
BSPT
BSP
Metric

and several others that I can't remember offhand.

Oh - and the same goes for bolt threads - there are a multitude of those
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Old 21-10-2015, 02:24   #377
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Re: Convenience of the metric system

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Figured it had to be a Canadian who would bring up a Robertson.

There is one heck of a story behind that design, but I'm sure the rest of the world is scratching their head as to what the heck a Robertson is.

Best screw head ever invented... saves a LOT of scrapped fingers.



Hey, you forgot the Tri Wing and Quad Wing
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Old 21-10-2015, 03:43   #378
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Re: Convenience of the metric system

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Originally Posted by hellosailor View Post
... But Bluebell? Really? There was a piece on one of the network nooze, maybe pbs, last week, interviewing a lot of BB employees. Apparently there was a corporate culture of unsanitary practices that should scare the hell out of anyone. Like, scooping waste off the floor to reuse it? ...
Thanks for the heads up! Sad to hear, but good to know.
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Old 21-10-2015, 07:27   #379
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Re: Convenience of the metric system

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Hey, you forgot the Tri Wing and Quad Wing
And Frearson.
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Old 21-10-2015, 07:29   #380
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Re: Convenience of the metric system

Quote:
Originally Posted by avb3 View Post
Figured it had to be a Canadian who would bring up a Robertson.

There is one heck of a story behind that design, but I'm sure the rest of the world is scratching their head as to what the heck a Robertson is.

Best screw head ever invented... saves a LOT of scrapped fingers.



Robertson? Oh you mean square drive screws.
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Old 21-10-2015, 09:27   #381
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Re: Convenience of the metric system

The head of a Torx, for example T20, where do the number comes from? 2.0 mm?
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Old 21-10-2015, 12:52   #382
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Re: Convenience of the metric system

More importantly, why does my Furlex have three different sizes of torx screws...



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Old 22-10-2015, 13:40   #383
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Re: Convenience of the metric system

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If you're in the USA you are almost forced to have two sets of tools. The rest of the world probably can get by with metric only unless you buy a US made car.
I do not live in the USA. My car was made in Canada, all metric. :-)


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Old 22-10-2015, 14:55   #384
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Re: Convenience of the metric system

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I do not live in the USA. My car was made in Canada, all metric. :-)
How convenient. Save money and have half the size tool box to carry around. I'm envious.

Guess there are some benefits to living in the land of ice and snow.
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Old 22-10-2015, 15:08   #385
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Re: Convenience of the metric system

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Guess there are some benefits to living in the land of ice and snow.
And the temperature is in Celsius, so we don't actually know how cold it is. :face palm: That's actually an argument I heard against converting, many years ago.

(Although for those who don't know - minus 40 is the same in both systems. Yippee!)
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Old 22-10-2015, 15:30   #386
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Re: Convenience of the metric system

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Originally Posted by AnglaisInHull View Post
And the temperature is in Celsius, so we don't actually know how cold it is. :face palm: That's actually an argument I heard against converting, many years ago.

(Although for those who don't know - minus 40 is the same in both systems. Yippee!)
That's also one I don't quite get myself. I always thought temp was one of the easier metric.

Freezing zero, boiling 100, hot day 30, nice day 20 cold day 10.

If there is still any confusion open a window and stick your head out.
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Old 22-10-2015, 15:45   #387
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Re: Convenience of the metric system

In principle, I'll use any system that's well defined and consistent. I grew up in Imperial, gradually switched to metric as the country did, and while studying Engineering learned to work with either.

But in reality I find that, with time, I have lost the concept of temperatures in Fahrenheit. And miles-per-hour, when I visit countries that use it, is starting to give me trouble.

When I go to the butcher I order in grams or pounds depending on how I feel that day. But I bet my daughter has no idea what a pound is.

So it's mostly what you're used to, but the human brain is remarkably adaptable - in spite of what some people appear to believe - and can generally deal with whatever system is in place.
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Old 22-10-2015, 15:54   #388
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Re: Convenience of the metric system

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Guess there are some benefits to living in the land of ice and snow.
Don't know what you mean. Little ice and snow on our part of the north sea. 😀

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Old 22-10-2015, 16:08   #389
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Re: Convenience of the metric system

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Originally Posted by AnglaisInHull View Post
So it's mostly what you're used to, but the human brain is remarkably adaptable
True in the vast majority of cases. But it's clear from certain posts on this thread that some human brains are not adaptable at all
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Old 22-10-2015, 16:15   #390
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Re: Convenience of the metric system

Quote:
Originally Posted by AnglaisInHull View Post
In principle, I'll use any system that's well defined and consistent. I grew up in Imperial, gradually switched to metric as the country did, and while studying Engineering learned to work with either.

But in reality I find that, with time, I have lost the concept of temperatures in Fahrenheit. And miles-per-hour, when I visit countries that use it, is starting to give me trouble.

When I go to the butcher I order in grams or pounds depending on how I feel that day. But I bet my daughter has no idea what a pound is.

So it's mostly what you're used to, but the human brain is remarkably adaptable - in spite of what some people appear to believe - and can generally deal with whatever system is in place.
Quote:
Originally Posted by StuM View Post
True in the vast majority of cases. But it's clear from certain posts on this thread that some human brains are not adaptable at all
Finally!
Two posts on this thread I can totally agree with

Although if pushed, I might add that while our local butcher is good with pounds many around here only know kilos…

Daughter thinks a pound is some sort of money used somewhere else
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