| Topic: |
Science > Physics |
| User: |
"Don1" |
| Date: |
09 Aug 2005 06:11:14 PM |
| Object: |
Fundamentals |
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
Don
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| User: "Herman Trivilino" |
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| Title: Re: Fundamentals |
09 Aug 2005 07:46:24 PM |
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"Don1" <dcshead@charter.net> wrote ...
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
When you get a little further along in that introductory physics textbook
(the one you glean from) you'll encounter a fourth. Electric charge. Maybe
then (on second thought you may never get that far) you'll see how silly
your notion is. All the electical units (volts, amps, watts) will need to
be done away with when you get your way and do away with the kilogram. The
electricians will love you. Having to learn a whole new set of units, not
to mention purchasing a whole new set of meters to measure them!
Fool.
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| User: "Don1" |
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| Title: Re: Fundamentals |
10 Aug 2005 08:14:22 AM |
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Herman Trivilino wrote:
"Don1" <dcshead@charter.net> wrote ...
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
When you get a little further along in that introductory physics textbook
(the one you glean from) you'll encounter a fourth. Electric charge. Maybe
then (on second thought you may never get that far) you'll see how silly
your notion is. All the electical units (volts, amps, watts) will need to
be done away with when you get your way and do away with the kilogram. The
electricians will love you. Having to learn a whole new set of units, not
to mention purchasing a whole new set of meters to measure them!
Fool.
Maybe not so foolish Herman. This can be worked out without metrics:
What is a charge but a concentration of stress which is no stranger to
customary methods of solution.
Don
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| User: "Uncle Al" |
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| Title: Re: Fundamentals |
09 Aug 2005 08:50:09 PM |
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Don1 wrote:
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
Seven SI fundamental units, idiot Dumb Donny *****.
Ineducable psychotic fucking imbecile.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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| User: "Androcles Androcles@ MyPlace.org" |
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| Title: Re: Fundamentals |
12 Aug 2005 10:20:52 PM |
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"Uncle Al" <UncleAl0@hate.spam.net> wrote in message
news:42F95D51.ED5C8119@hate.spam.net...
| Don1 wrote:
| >
| > There is one fundamental quantity in physics that is universally
| > constant, and is comprised of three fundamental variables:
| >
| > The constant is of course mass, and the variables are force; forced
| > displacement, and (periods of) time passage.
| >
| > Virtually all other physics concepts, including mass, can be derived
| > from these three fundamental variables.
|
| Seven SI fundamental units, idiot Dumb Donny *****.
| Ineducable psychotic fucking imbecile.
[snip crap]
Idiot.
Androcles
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| User: "" |
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| Title: Re: Fundamentals |
13 Aug 2005 01:12:57 PM |
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Idiot.
Androcles
**********************
I love you.
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| User: "Don1" |
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| Title: Re: Fundamentals |
10 Aug 2005 08:23:24 AM |
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Uncle Al wrote:
Don1 wrote:
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
Seven SI fundamental units,
Yes Uncle Wiggly, and all seven have customary counter parts; that can
be derived from the three customary fundamental variables.
Don
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| User: "Uncle Al" |
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| Title: Re: Fundamentals |
10 Aug 2005 10:39:44 AM |
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Don1 wrote:
Uncle Al wrote:
Don1 wrote:
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
Seven SI fundamental units,
Yes Uncle Wiggly, and all seven have customary counter parts; that can
be derived from the three customary fundamental variables.
Seven SI fundamental units, idiot Dumb Donny *****.
Ineducable psychotic fucking imbecile.
Derive electric charge, idiot Dumb Donny *****.
Derive electric charge, idiot Dumb Donny *****.
Derive electric charge, idiot Dumb Donny *****.
Derive electric charge, idiot Dumb Donny *****.
Derive electric charge, idiot Dumb Donny *****.
Derive electric charge, idiot Dumb Donny *****.
Derive electric charge, idiot Dumb Donny *****.
Derive electric charge, idiot Dumb Donny *****.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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| User: "Sam Wormley" |
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| Title: Re: Fundamentals |
09 Aug 2005 06:16:57 PM |
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Don1 wrote:
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Wrong again Shead. "Fundamental" implies "not dependent on other
quantities".
Mass
http://scienceworld.wolfram.com/physics/Mass.html
Weight
http://scienceworld.wolfram.com/physics/Weight.html
Inertia
http://scienceworld.wolfram.com/physics/Inertia.html
The resistance to change in state of motion which all matter exhibits.
It's a concept, Shead, not a number with units, not a ratio.
Newton's First Law
http://scienceworld.wolfram.com/physics/NewtonsFirstLaw.html
Also called the "law of inertia," Newton's first law states that a
body at rest remains at rest and a body in motion continues to move
at a constant velocity unless acted upon by an external force.
Newton's Second Law is about "inertial mass"
http://scienceworld.wolfram.com/physics/NewtonsSecondLaw.html
A force F acting on a body gives it an acceleration a which is in
the direction of the force and has magnitude inversely proportional
to the mass m of the body: F = ma
Inertia is an intrinsic property of mass. Most of what follows is
quoted from http://www.physlink.com/ae305.cfm
Gravitational Mass F = GmM/r^2
Inertial Mass F = ma
Acceleration a = dv/dt
1) Inertial mass. This is mainly defined by Newton's law,
the all-too-famous F = ma, which states that when a force
F is applied to an object, it will accelerate
proportionally, and that constant of proportion is the
mass of that object. In very concrete terms, to determine
the inertial mass, you apply a force of F Newtons to an
object, measure the acceleration in m/s^2, and F/a will
give you the inertial mass m in kilograms.
2) Gravitational mass. This is defined by the force of
gravitation, which states that there is a gravitational
force between any pair of objects, which is given by
F = G m1 m2/r^2
where G is the universal gravitational constant, m1 and m2
are the masses of the two objects, and r is the distance
between them. This, in effect defines the gravitational
mass of an object.
As it turns out, these two masses are equal to each other
as far as we can measure. Also, the equivalence of these
two masses is why all objects fall at the same rate on
earth.
The only difference that we can find between inertial and
gravitational mass that we can find is the method.
Gravitational mass is measured by comparing the force of
gravity of an unknown mass to the force of gravity of a
known mass. This is typically done with some sort of
balance scale. The beauty of this method is that no matter
where, or what planet, you are, the masses will always
balance out because the gravitational acceleration on each
object will be the same. This does break down near
supermassive objects such as black holes and neutron stars
due to the high gradient of the gravitational field around
such objects.
Inertial mass is found by applying a known force to an
unknown mass, measuring the acceleration, and applying
Newton's Second Law, m = F/a. This gives as accurate a
value for mass as the accuracy of your measurements. When
the astronauts need to be weighed in outer space, they
actually find their inertial mass in a special chair.
The interesting thing is that, physically, no difference
has been found between gravitational and inertial mass.
Many experiments have been performed to check the values
and the experiments always agree to within the margin of
error for the experiment. Einstein used the fact that
gravitational and inertial mass were equal to begin his
Theory of General Relativity in which he postulated that
gravitational mass was the same as inertial mass and that
the acceleration of gravity is a result of a "valley" or
slope in the space-time continuum that masses "fell down"
much as pennies spiral around a hole in the common
donation toy at your favorite chain store.
Useful references for Shead
http://scienceworld.wolfram.com/physics/Inertia.html
http://scienceworld.wolfram.com/physics/MomentofInertia.html
http://scienceworld.wolfram.com/physics/Mass.html
http://scienceworld.wolfram.com/physics/Momentum.html
http://scienceworld.wolfram.com/physics/NewtonsLaws.html
http://scienceworld.wolfram.com/physics/Weight.html
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| User: "Don1" |
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| Title: Re: Fundamentals |
10 Aug 2005 08:05:06 AM |
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Sam Wormley wrote:
Don1 wrote:
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Wrong again Shead. "Fundamental" implies "not dependent on other
quantities".
You are using fundamental as a noun Sam; a fundamental _quantity_ is a
quantity that is of central importance; which mass, inertia, force and
rate of displacement, certainly are for physics.
The product of force and its duration is an impulse (ft), and is a
measure of the energy required to cause a certain rate of displacement
(s/t) to occur. This impulse (ft) is proportional to the rate of
displacement (s/t) that it causes, and is a constant: The impulse,
divided by the rate of displacement that it causes is a constant:
Mathematically: ft/(s/t) = ft^2/s = 2w/g
Don
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| User: "Sam Wormley" |
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| Title: Re: Fundamentals |
10 Aug 2005 08:54:47 AM |
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Don1 wrote:
You are using fundamental as a noun Sam; a fundamental _quantity_ is a
quantity that is of central importance; which mass, inertia, force and
rate of displacement, certainly are for physics.
Inertia is not a quantity, Shead.
Potentially useful references for Shead
http://scienceworld.wolfram.com/physics/Inertia.html
http://scienceworld.wolfram.com/physics/MomentofInertia.html
http://scienceworld.wolfram.com/physics/Mass.html
http://scienceworld.wolfram.com/physics/Momentum.html
http://scienceworld.wolfram.com/physics/NewtonsLaws.html
http://scienceworld.wolfram.com/physics/Weight.html
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| User: "Earle Jones" |
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| Title: Re: Fundamentals |
09 Aug 2005 11:35:51 PM |
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In article <1123629074.256957.141490@g47g2000cwa.googlegroups.com>,
"Don1" <dcshead@charter.net> wrote:
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
Don
*
The stupid S***Head is at it again.
Ever hear about charge?
Why don't you go away?
earle
*
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| User: "Don1" |
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| Title: Re: Fundamentals |
10 Aug 2005 08:31:00 AM |
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Earle Jones wrote:
In article <1123629074.256957.141490@g47g2000cwa.googlegroups.com>,
"Don1" <dcshead@charter.net> wrote:
There is one fundamental quantity in physics that is universally
constant, and is comprised of three fundamental variables:
The constant is of course mass, and the variables are force; forced
displacement, and (periods of) time passage.
Virtually all other physics concepts, including mass, can be derived
from these three fundamental variables.
Don
snip<
Ever hear about charge?
Yes earle, that's when stress builds up, and can't wait for relief.
Don
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