These guys still don’t understand the metric system. A million microphones is a phone, because a microphone is one millionth of a phone. A megaphone would be a million million microphone. That is to say, a trillion microphones, or a peta-microphone.

The unit of air pressure on mechanical European (German) tire pressure gages is the bar, usually from 0 to 4 bars (≈ 60 psi), in increments of 0.1 bar.

Bars make a lot of sense, but some countries use kilopascals. Typically a car might have 225kpa as the factory recommended air pressure.

“Bars make a lot of sense” They do, especially at the end of a long, hard day. However, I prefer to bring my own (Johnny Walker Black), rather than pay inflated drink prices at bars. That was what you meant–right? ;-))

Docnick — "Bars make a lot of sense, but some countries use kilopascals.Bars and kPa are used interchangeably in Europe. 1 bar = 100 kPa. (1 Pascal (Pa) = 1 Newton/meter²) So the 225 kPa factory recommended air pressure would simply convert to 2.25 bars (or 32.6 psi for the Luddites).

Metric has both coarse and fine thread, plus several grades in between. For example, there is 14x1.0, 14x1.25, 14x1.5 and 14x2.0.

There’s nothing in either the metric system or the English system that sets limits on things. Take the bolts and nuts issue brought up above. In the English system, the pitch is specified in “threads per inch”. There are standards, but that doesn’t preclude anyone from making something off standa…

Whitworth mostly died out with the T Series MGs. It was a pain in the posterior while it lasted. [image] British Standard Whitworth British Standard Whitworth (BSW) is an imperial-unit-based screw thread standard. The Whitworth thread was the world's first national screw thread stand…

A million microphones is not a phone. It’s a million microphones. A microphone is not a millionth of a phone. It’s a device to convert sound waves into electrical impulses, generally piezoelectric or inductive. A megaphone is not a million million phones. Or a trillion microphones, or a peta-micro…

Metric system

The Show

Docnick January 18, 2012, 12:50am 19

To my knowledge, the Whitworth thread was a British screw thread that was gradually phased out as the industry went metric. It was very popular in the car business there. At that time we had here Unified National Coarse (UNC) and Unified National Fine (UNF). Europe had metric D.I.N., originally from Germany.

Topic		Replies	Views
Is the whole world metric? General Discussion	200	8183	March 24, 2018
My Olds converted itself to Metric. Does that mean I get better mileage? Maintenance/Repairs oldsmobile , silhouette	101	6838	October 5, 2017
Gasoline efficiency General Discussion	56	3740	September 18, 2011
Metric...or SAE? General Discussion	70	15740	September 15, 2011
Standard heads on metric fasteners? -China stuff General Discussion	58	2650	December 24, 2023

Metric system

Related topics