Why MPH?
 

"Robert M. Gary" wrote in message
...
On Jul 17, 10:54 am, HK wrote:
On Jul 17, 9:49 am, "Ulf B" wrote:
Hello all,

why are recreational boatspeed in the US measured in MPH when the rest
of
the world including the US proffesional mariners uses knots???

Most Americans can't even learn English, so to expect them to learn the
metric system is more than a stretch.

I don't think there is anything metric about knots. Metric would be
km.

-Robert

There *is* nothing about metric in "knots".

Eisboch

Why MPH?
 

On Thu, 17 Jul 2008 22:29:27 -0400, Gene Kearns
wrote:

More accurately, kph.

Keystrokes Per Hour? What's that got to do with anything?

With some people we know, it's a good indication of how deep it will
get.

Why MPH?
 

Gene Kearns wrote:
On Thu, 17 Jul 2008 19:58:28 -0400, DK penned the following well
considered thoughts to the readers of rec.boats:

Robert M. Gary wrote:
On Jul 17, 10:54 am, HK wrote:
On Jul 17, 9:49 am, "Ulf B" wrote:
Hello all,
why are recreational boatspeed in the US measured in MPH when the rest of
the world including the US proffesional mariners uses knots???
Most Americans can't even learn English, so to expect them to learn the
metric system is more than a stretch.
I don't think there is anything metric about knots. Metric would be
km.

-Robert
More accurately, kph.

Keystrokes Per Hour? What's that got to do with anything?


How much you got payed in the old days.

Why MPH?
 

wrote in message
...
On Thu, 17 Jul 2008 22:52:01 -0400, "Eisboch" wrote:


"Robert M. Gary" wrote in message
...
On Jul 17, 10:54 am, HK wrote:
On Jul 17, 9:49 am, "Ulf B" wrote:
Hello all,

why are recreational boatspeed in the US measured in MPH when the
rest
of
the world including the US proffesional mariners uses knots???

Most Americans can't even learn English, so to expect them to learn the
metric system is more than a stretch.

I don't think there is anything metric about knots. Metric would be
km.

-Robert

There *is* nothing about metric in "knots".

Eisboch


Unless you are a mathmetician or scientist...



Please explain. Last time I checked a "Knot" multiplied by 1.8 something,
something, something equalled one kilometer per hour.

That's a knot ..... coverted to a metric unit.

What's the origin of a "knot"?

Eisboch

Why MPH?
 

On Fri, 18 Jul 2008 07:11:31 -0400, Eisboch wrote:

wrote in message
...
On Thu, 17 Jul 2008 22:52:01 -0400, "Eisboch" wrote:


"Robert M. Gary" wrote in message
...
On Jul 17, 10:54 am, HK wrote:
On Jul 17, 9:49 am, "Ulf B" wrote:
Hello all,

why are recreational boatspeed in the US measured in MPH when the
rest
of
the world including the US proffesional mariners uses knots???

Most Americans can't even learn English, so to expect them to learn
the metric system is more than a stretch.

I don't think there is anything metric about knots. Metric would be km.

-Robert

There *is* nothing about metric in "knots".

Eisboch


Unless you are a mathmetician or scientist...



Please explain. Last time I checked a "Knot" multiplied by 1.8
something, something, something equalled one kilometer per hour.

That's a knot ..... coverted to a metric unit.

What's the origin of a "knot"?

Eisboch

Apparently, knots and meters are tied together, somewhat. A nautical
mile is a minute of latitude. A meter is 1/10,000,000 of the distance
from the equator to the North Pole, and, obviously, a knot is a nautical
mile per hour. Thank you, wikipedia.

Why MPH?
 

Why MPH?
 

wrote in message
...
On Fri, 18 Jul 2008 07:11:31 -0400, Eisboch wrote:

wrote in message
...
On Thu, 17 Jul 2008 22:52:01 -0400, "Eisboch" wrote:


"Robert M. Gary" wrote in message
...
On Jul 17, 10:54 am, HK wrote:
On Jul 17, 9:49 am, "Ulf B" wrote:
Hello all,

why are recreational boatspeed in the US measured in MPH when the
rest
of
the world including the US proffesional mariners uses knots???

Most Americans can't even learn English, so to expect them to learn
the metric system is more than a stretch.

I don't think there is anything metric about knots. Metric would be km.

-Robert

There *is* nothing about metric in "knots".

Eisboch


Unless you are a mathmetician or scientist...



Please explain. Last time I checked a "Knot" multiplied by 1.8
something, something, something equalled one kilometer per hour.

That's a knot ..... coverted to a metric unit.

What's the origin of a "knot"?

Eisboch

Apparently, knots and meters are tied together, somewhat. A nautical
mile is a minute of latitude. A meter is 1/10,000,000 of the distance
from the equator to the North Pole, and, obviously, a knot is a nautical
mile per hour. Thank you, wikipedia.

We all owe Hairless at least a half hearted apology.

Why MPH?
 

Why MPH?
 

wrote in message
...

On Fri, 18 Jul 2008 07:11:31 -0400, Eisboch wrote:




Please explain. Last time I checked a "Knot" multiplied by 1.8
something, something, something equalled one kilometer per hour.

That's a knot ..... coverted to a metric unit.

What's the origin of a "knot"?

Eisboch


Apparently, knots and meters are tied together, somewhat. A nautical
mile is a minute of latitude. A meter is 1/10,000,000 of the distance
from the equator to the North Pole, and, obviously, a knot is a nautical
mile per hour. Thank you, wikipedia.


They are tied together apparently, but by coincidence, not mathematical
design or part of the Metric system.
Quoting Wikipedia:

Origin
Until the mid-19th century vessel speed at sea was measured using a chip
log. This consisted of a wooden panel, weighted on one edge to float upright
and thus have substantial water resistance, attached by line to a reel. The
chip log was "cast" over the stern of the moving vessel and the line allowed
to pay out. Knots placed at a distance of 47 feet 3 inches (14.4018 m)
passed through a sailor's fingers, while another sailor used a 30 second
sandglass (28 second sandglass is the current accepted timing) to time the
operation.[6] The knot count would be reported and used in the sailing
master's dead reckoning and navigation. This method gives a value for the
knot of 20.25 in/s, or 1.85166 km·h?1. The difference from the modern
definition is less than 0.02%.


[edit] Modern use
Although the unit "knots" does not fit within the primary SI system, its
retention for nautical and aviation use is important for navigational
reasons, since the length of a nautical mile is almost identical to a minute
of latitude. As a result, distance in nautical miles on a navigational chart
can easily be measured by using dividers and the latitude indicators on the
side of the chart.

Nautical speed is sometimes erroneously expressed as "knots per hour" which
would actually be a measure of acceleration, as in "nautical miles per hour
per hour."



Eisboch

Why MPH?
 

On Fri, 18 Jul 2008 06:29:58 -0500, wrote:

On Fri, 18 Jul 2008 07:11:31 -0400, Eisboch wrote:

wrote in message
...
On Thu, 17 Jul 2008 22:52:01 -0400, "Eisboch" wrote:


"Robert M. Gary" wrote in message
...
On Jul 17, 10:54 am, HK wrote:
On Jul 17, 9:49 am, "Ulf B" wrote:
Hello all,

why are recreational boatspeed in the US measured in MPH when the
rest
of
the world including the US proffesional mariners uses knots???

Most Americans can't even learn English, so to expect them to learn
the metric system is more than a stretch.

I don't think there is anything metric about knots. Metric would be km.

-Robert

There *is* nothing about metric in "knots".

Eisboch


Unless you are a mathmetician or scientist...



Please explain. Last time I checked a "Knot" multiplied by 1.8
something, something, something equalled one kilometer per hour.

That's a knot ..... coverted to a metric unit.

What's the origin of a "knot"?

Eisboch

Apparently, knots and meters are tied together, somewhat. A nautical
mile is a minute of latitude. A meter is 1/10,000,000 of the distance
from the equator to the North Pole, and, obviously, a knot is a nautical
mile per hour. Thank you, wikipedia.

The Knot, as I'm sure Harry knows, is a non-SI unit - meaning that it
does not conform to the standards set down by Le Système International
d'Unités or in a real language, International System of Units also
known as the metric system.

The reason is that the Knot is not (get it - knot is not?) is because
it does not directly correlate to the metric or SI system.

Thus, it is not a metric measurement.

And while I'm on my high horse, were you aware that the meter is based
on the distance traveled by light in 1/299,792,458 of a second? And
that this measurement is 1/10,000,000 of the distance from the Equator
to the North Pole on a line running through Paris? PARIS!!

How stupid is that? No wonder the metric system is so weird. Paris -
honest to pete. Damn Frenchies never got over the English having the
Prime Meridian run through Greenwich. :)

Metric system my ass. :)