Though I would rather pay $3.09 for an imperial gallon, than a US gallon...
Four farthings to a penny
Yes. Among other applications, General Motors used it on some fasteners in their engines, in the late 1980s. Other fasteners in the same engines were still SAE inch standard; this is true but I will not be surprised if you don't believe it.
yes, the brits took metric and imperial and created the worst of both morlds, highly confusing yo any driver. tank liters. go for miles,and mesure fuel efficiency in liters /100km.. go figureou the british empire!
Ha! Eons ago, one of our tasks for practicing the conversion of units, was to convert the speed of light from miles per second, to furlongs per fortnight.
Thanks for the reminder of old times.
I've never quite understood the big deal about using metric or US measurements. For precise work, you grab a measuring device calibrated in the right units. For photography, unless you are focusing by a scale on a lens for close work, does it really matter? Metric infinity is pretty much the same as imperial infinity. It just has that strange Euro look to the colors... ;-)
How about arcseconds per second?
Most of the machine tools (mills, lathes, etc) used to make equipment during WWII were made before WWII,Seems to be a pre-war standardisation but it is likely old equipment was still in use during wartime.
That would work for angular velocity but not linear. On the surface of the Earth, at sea level, an arcsecond is about 100 feet. If you're higher up, an arcsecond will be more; in Death Valley it will be slightly less.
Shillings. Schilling sounds Dutch.
It's easy. Tuppence is obvious (two pence). Four farthings to a penny, twelve pennies to a shilling, twenty shillings to a pound (240 pence). And don't forget the Guinea - worth one pound and one shilling. It was originally a one pound coin but the price of gold went up so the value of the coin had to otherwise it would have been worth more in gold than its face value.
Steve.
I'm buying a camera where all distance is done in meters. Well, schooling here standardized on feet. Any tricks any of you used to retrain you mind to evaluate in meters? I am aware of the conversion 3 feet = .91 meter, just currious if there are any "tricks" or things that help get the mind to convert faster?
We got counting in twelve s from the Vikings Ross, and we still buy eggs and many other things in dozens, although a bakers dozen is thirteen.12 was always a sensible base for currency, divisible by 2 3 4 and 6.
Guineas were popular in art dealer circles; that extra shilling added up quite nicely for a big sale.
Shillings. Schilling sounds Dutch.
It's easy. Tuppence is obvious (two pence). Four farthings to a penny, twelve pennies to a shilling, twenty shillings to a pound (240 pence). And don't forget the Guinea - worth one pound and one shilling. It was originally a one pound coin but the price of gold went up so the value of the coin had to otherwise it would have been worth more in gold than its face value.
Steve.
I think I can clear that up Steve, the £ sign looks like a capital L because it comes from a denomination of Roman coinage the Libra, and the D a smaller denomination the Denarious, because remamber the Romans occupied Britain for four hundred years.Not sure of the origin but a Crown was five shillings (or 60 pence). Four Crowns to the pound. There was also a half Crown which was two Shillings and six Pence. In conversation, the Shillings and Pence were not normally spoken so something costing half a Crown might also be described as costing two and six.
And something which confused me for a long time when I was a child was that the sign for a Pound (£) was really 'L' and the sign for Pence was 'D'.
I couldn't work out why the price label marked 4D actually meant four Pence. Even more confusing was the transition period between the old currency and decimal when most things in the shops had two prices. Did the same thing happen in Europe when the Euro was (almost) universally adopted?
Steve.
I think I can clear that up Steve, the £ sign looks like a capital L because it comes from a denomination of Roman coinage the Libra, and the D a smaller denomination the Denarious, because remamber the Romans occupied Britain for four hundred years.
I think I can clear that up Steve
And something which confused me for a long time when I was a child was that the sign for a Pound (£) was really 'L' and the sign for Pence was 'D'.
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