- Interesting info below from a measurement and how it came to be.
Carlos F. Pardo
The US standard railroad gauge (distance between the rails) is 4
feet, 8.5 inches, an exceedingly odd number.
Why was that gauge used?
Because that's the way they built them in England, and the English
built the first US railroads.
Why did the English build them like that?
Because the first rail lines were built by the people who built the
pre-railroad tramways, and that is the gauge they used.
Why did they use that particular gauge then?
Because the people who built the tramways used the same jigs and
tools that they used for building wagons, which used the same wheel spacing.
Okay! Why did the wagons have that particular odd wheel spacing?
Well, if they tried to use any other spacing, the wagon wheels would
break on the old, long distance roads in England, because that's the
spacing of the wheel ruts in the granite sets.
So, who built those old rutted roads?
Imperial Rome built the first long distance roads in Europe (and
England) for their legions. The roads have been used ever since.
And the ruts in the roads?
Roman war chariots formed the initial ruts, which everyone else had
to match for fear of destroying their wagon wheels. Since the
chariots were made for (or by) Imperial Rome, they all had the same
wheel spacing. The United States standard railroad gauge of 4 feet,
8.5 inches is derived from the specification for an Imperial Roman
Specifications and Bureaucracies live forever. The Imperial Roman war
chariots were made just wide enough to accommodate the back ends of
two war-horses. Now let's cut to the present...
The Space Shuttle, sitting on its launch pad, has two booster rockets
attached to the sides of the main fuel tank. These are solid rocket
boosters, or SRBs. A company builds SRBs at its factory in Utah. The
engineers who designed the SRBs wanted to make them a bit fatter, but
the SRBs had to be shipped by train from the factory to the launch
site. The railroad line from the factory has to run through a tunnel
in the mountains. The SRBs had to fit through that tunnel, which is
slightly wider than the railroad track, and the railroad track is
about as wide as two horses' behinds.
So.... a major design feature of what is arguably the world's most
advanced transportation system was determined two thousand years ago
by a horse's ass.
Which is pretty much how most government decisions are made.
So now you know !!!!
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