Railroads and Rocket Science

**Sean Osborne** · June 20th, 2006, 11:41

This has been around a bit, BUT not with all of the MOBILES.....take a look...

RAILROADS AND ROCKET SCIENCE

Does the statement, "We've always done it that way" ring any bells?

The US standard railroad gauge (distance between the rails) is 4 feet, 8.5 inches

That's an exceedingly odd number.

Why was that gauge used?

Because that's the way they built them in England, and English expatriates built the

Railroads.

Why did the English build them like that?

Because the first rail lines were built by the same people who built the pre-railroad tramways,

and that's the gauge they used.

Why did "they" use that gauge then?

Because the people who built the tramways used the same jigs and tools that they used

for building wagons, which used that 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 some of

the old, long distance roads in England, because that's the spacing of the wheel ruts.

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 Imperial Rome, they

were all alike in the matter of wheel spacing..

The United States standard railroad gauge of 4 feet, 8.5 inches is derived from the

original specifications for an Imperial Roman war chariot. And bureaucracies live forever.

So the next time you are handed a specification and wonder what horse's ass came up

with it, you may

be exactly right, because the Imperial Roman army

chariots were made just wide enough to accommodate the back ends of two war horses.

Now the twist to the story

When you see a Space Shuttle sitting on its launch pad, there are two big booster rockets

attached to the sides of the main fuel tank. These are solid rocket boosters, or SRBs.

The SRBs are made by Thiokol at their factory at UtaH. The engineers who designed the

SRBs would have preferred 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 happens to run

through a tunnel in the mountains. The SRBs had to fit through

that tunnel. The tunnel is slightly wider than the railroad track, and the railroad track, as

you now know, is about as wide as two horses' behinds.