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Science > Physics |
| User: |
"" |
| Date: |
31 May 2007 06:32:45 AM |
| Object: |
Where do the units come from? |
Hi Guys
I'm wonder where the units of measure come from. Specifically the
kilometer. I can swear I read somewhere that the distance from some...
pole or latitude to paris = x kilometers and that is how they decided
how long a kilometer is. It is however IMPOSSIBLE for me to find the
history of the kilometer online as there's a gazillion website wanting
to help me convert kilometers to other units.
Do you perhaps know of a website where they have the origins of the
units explained?
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| User: "Greg Neill" |
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| Title: Re: Where do the units come from? |
31 May 2007 06:46:02 AM |
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<coetzee.evert@gmail.com> wrote in message
news:1180611165.731427.59750@q75g2000hsh.googlegroups.com...
Hi Guys
I'm wonder where the units of measure come from. Specifically the
kilometer. I can swear I read somewhere that the distance from some...
pole or latitude to paris = x kilometers and that is how they decided
how long a kilometer is. It is however IMPOSSIBLE for me to find the
history of the kilometer online as there's a gazillion website wanting
to help me convert kilometers to other units.
Do you perhaps know of a website where they have the origins of the
units explained?
Google: History of the meter
First hit: http://physics.nist.gov/cuu/Units/meter.html
Research is not your thing.
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| User: "" |
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| Title: Re: Where do the units come from? |
31 May 2007 09:39:50 AM |
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Greg Neil, you may have insulted me a bit but you gave me the info I
was looking for so I'm grateful. Thanks! For some reason I didn't see
that result when I tried the history of the kilometer. Good thing
there's communities out there. :-)
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| User: "" |
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| Title: Re: Where do the units come from? |
01 Jun 2007 07:54:45 AM |
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On 31 mai, 10:39, wrote:
Greg Neil, you may have insulted me a bit but you gave me the info I
was looking for so I'm grateful. Thanks! For some reason I didn't see
that result when I tried the history of the kilometer. Good thing
there's communities out there. :-)
You should not confuse self serving condescention with authority.
Real scientists do not look down on nor insult inquiring minds.
Andr=E9 Michaud
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| User: "Uncle Al" |
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| Title: Re: Where do the units come from? |
31 May 2007 09:58:48 AM |
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wrote:
Hi Guys
I'm wonder where the units of measure come from. Specifically the
kilometer. I can swear I read somewhere that the distance from some...
pole or latitude to paris = x kilometers and that is how they decided
how long a kilometer is. It is however IMPOSSIBLE for me to find the
history of the kilometer online as there's a gazillion website wanting
to help me convert kilometers to other units.
Do you perhaps know of a website where they have the origins of the
units explained?
France sought to be the repository of primary standards when the
metric system was developed. The Official explanation for the meter
has a much more reasonable practical alternative: a meter is the
length of a poorly measured 1-second pendulum (short by 0.56%).
Re the Royal Society in 1660, after a suggestion by Christian Huygens
and Ole Rømer (based also on a study of Marin Mersenne published in
Paris in 1644). The proposal was followed by an analogous suggestion
by Jean Picard in 1668. An independent proposal was raised by Tito
Livio Burattini in 1675, calling the proposed unit `meter'.
In 1740 Nicolas Louis de Lacaille and Cassini de Thury measured the
length of the 1-second pendulum in Paris (48 degrees 50' latitude),
obtaining 99.383 cm in today's measure (short by 0.62% vs. today's
meter and remarkably consistent with the alternative to the Official
Truth).
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2
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| User: "Androcles" |
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| Title: Re: Where do the units come from? |
31 May 2007 07:09:43 PM |
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"Uncle Al" <UncleAl0@hate.spam.net> wrote in message
news:465EE2A8.790EDDB9@hate.spam.net...
what, no [snop] ?
I'll do it for you.
[snop fet wart]
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| User: "socratus" |
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| Title: Re: Where do the units come from? |
31 May 2007 12:47:06 PM |
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On May 31, 7:58 am, Uncle Al <Uncle...@hate.spam.net> wrote:
coetzee.ev...@gmail.com wrote:
Hi Guys
I'm wonder where the units of measure come from.
====================================================
1.
Where does the quanta h come from?
The constant h Planck took from heaven
(phenomenological ) and placed in physics.
2.
At the interaction of the electron with the vacuum,
the energy and mass of it become infinite, it means
that electron disappeared in the heaven.
Maybe, therefore the energy of vacuum is not equal to zero.
3.
Between constant h and electron there is
constant a (fine structure constant) .
What does this constant mean?
This constant remained unknown in modern physics and
on Feynman's expression that this quantity is
" by the god given damnation to all physicists ".
4.
I want to say, that the constant h comes from heaven
and the electron goes to heaven and still nobody knows
what light quanta, electron and vacuum are.
Maybe, therefore the interpretation of physics
seems such paradoxical.
Maybe, therefore the physicists make measuring
not understanding the deep essence of the processes .
==============.
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| User: "Sam Wormley" |
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| Title: Re: Where do the units come from? |
01 Jun 2007 02:28:28 PM |
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wrote:
Hi Guys
I'm wonder where the units of measure come from. Specifically the
kilometer. I can swear I read somewhere that the distance from some...
pole or latitude to paris = x kilometers and that is how they decided
how long a kilometer is. It is however IMPOSSIBLE for me to find the
history of the kilometer online as there's a gazillion website wanting
to help me convert kilometers to other units.
Do you perhaps know of a website where they have the origins of the
units explained?
History of measurement
http://en.wikipedia.org/wiki/History_of_measurement
"Units of measurement were among the earliest tools invented by
humans. Primitive societies needed rudimentary measures for many
tasks: constructing dwellings of an appropriate size and shape,
fashioning clothing, or bartering food or raw materials".
"The earliest known uniform systems of weights and measures seem
to have all been created sometime in the 4th and 3rd millennia BC
among the ancient peoples of Mesopotamia, Egypt and the Indus
Valley, and perhaps also Elam (in Iran) as well".
Essentials of the SI
http://physics.nist.gov/cuu/Units/index.html
"This is a brief summary of the SI, the modern metric system of
measurement. Long the language universally used in science, the
SI has become the dominant language of international commerce and
trade".
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| User: "Bob Cain" |
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| Title: Re: Where do the units come from? |
01 Jun 2007 09:50:39 PM |
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Sam Wormley wrote:
coetzee.evert@gmail.com wrote:
Hi Guys
I'm wonder where the units of measure come from. Specifically the
kilometer. I can swear I read somewhere that the distance from some...
pole or latitude to paris = x kilometers and that is how they decided
how long a kilometer is. It is however IMPOSSIBLE for me to find the
history of the kilometer online as there's a gazillion website wanting
to help me convert kilometers to other units.
Do you perhaps know of a website where they have the origins of the
units explained?
History of measurement
http://en.wikipedia.org/wiki/History_of_measurement
"Units of measurement were among the earliest tools invented by
humans. Primitive societies needed rudimentary measures for many
tasks: constructing dwellings of an appropriate size and shape,
fashioning clothing, or bartering food or raw materials".
"The earliest known uniform systems of weights and measures seem
to have all been created sometime in the 4th and 3rd millennia BC
among the ancient peoples of Mesopotamia, Egypt and the Indus
Valley, and perhaps also Elam (in Iran) as well".
Essentials of the SI
http://physics.nist.gov/cuu/Units/index.html
"This is a brief summary of the SI, the modern metric system of
measurement. Long the language universally used in science, the
SI has become the dominant language of international commerce and
trade".
Sam, you are responding to the Relf thing.
Bob
--
"Things should be described as simply as possible, but no simpler."
A. Einstein
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| User: "Sam Wormley" |
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| Title: Re: Where do the units come from? |
01 Jun 2007 10:22:44 PM |
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Bob Cain wrote:
Sam Wormley wrote:
coetzee.evert@gmail.com wrote:
Hi Guys
I'm wonder where the units of measure come from. Specifically the
kilometer. I can swear I read somewhere that the distance from some...
pole or latitude to paris = x kilometers and that is how they decided
how long a kilometer is. It is however IMPOSSIBLE for me to find the
history of the kilometer online as there's a gazillion website wanting
to help me convert kilometers to other units.
Do you perhaps know of a website where they have the origins of the
units explained?
History of measurement
http://en.wikipedia.org/wiki/History_of_measurement
"Units of measurement were among the earliest tools invented by
humans. Primitive societies needed rudimentary measures for many
tasks: constructing dwellings of an appropriate size and shape,
fashioning clothing, or bartering food or raw materials".
"The earliest known uniform systems of weights and measures seem
to have all been created sometime in the 4th and 3rd millennia BC
among the ancient peoples of Mesopotamia, Egypt and the Indus
Valley, and perhaps also Elam (in Iran) as well".
Essentials of the SI
http://physics.nist.gov/cuu/Units/index.html
"This is a brief summary of the SI, the modern metric system of
measurement. Long the language universally used in science, the
SI has become the dominant language of international commerce and
trade".
Sam, you are responding to the Relf thing.
Bob
Relf is in my kill file... I suggest other not respond to his
trolling.
-Sam
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| User: "Bob Cain" |
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| Title: Re: Where do the units come from? |
01 Jun 2007 11:09:32 PM |
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Sam Wormley wrote:
Bob Cain wrote:
Sam, you are responding to the Relf thing.
Relf is in my kill file...
Better add the puppet that started this thread then.
Bob
--
"Things should be described as simply as possible, but no simpler."
A. Einstein
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| User: "" |
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| Title: Re: Where do the units come from? |
31 May 2007 09:39:41 AM |
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On 31 mai, 07:32, wrote:
Hi Guys
I'm wonder where the units of measure come from. Specifically the
kilometer. I can swear I read somewhere that the distance from some...
pole or latitude to paris =3D x kilometers and that is how they decided
how long a kilometer is. It is however IMPOSSIBLE for me to find the
history of the kilometer online as there's a gazillion website wanting
to help me convert kilometers to other units.
Do you perhaps know of a website where they have the origins of the
units explained?
The actual unit is the "meter", so you would no doubt have more luck
if you were looking for the history of the meter.
The meter belong to the SI system "Systeme International" of units,
which is in general use.
Its units are the meter (m), the kilogram (kg), the second (s),
also refered to as the MKS system.
If you look for those keywords, you should find what you want.
Andr=E9 Michaud
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