🚀 go-pugleaf

"BURT" <macromitch@yahoo.com> wrote in message
news:1184620136.419350.260440@m37g2000prh.googlegroups.com...
> On Jul 15, 10:40 pm, "Jeckyl" <no...@nowhere.com> wrote:
>> "Y.Porat" <y.y.po...@gmail.com> wrote in message
>>
>> news:1184396996.855175.254140@g4g2000hsf.googlegroups.com...
>>
>> > ------------
>> > To your question whether the photon has mass
>>
>> > the answwer is Yes
>>
>> Wrong .. the answer is NO
>>
>> > it has mass  a verylittl eone
>>
>> Very little meaning ZERO
>>
>> > 2
>> > there is only jsy one kind of mass
>>
>> Although one can calculate other values that have units of mass and use
>> the
>> word 'mass' in their name.
>>
>> But yes, what is usually regarded as mass is the invariant, or rest, mass
>>
>> > you can choose any name for it
>> > but jus tone knd of mass
>> > (if you think about 'relatiovistic mass'
>> > better forget about it
>>
>> Its not all that useful, but neither is it 'wrong'
>>
>> > and
>> > how come that the phton has mas
>> > and still movwes at c
>>
>> It doesn't have mass .. that is WHY it CAN move at c
>>
>> > ask Wormley  he is a cleaver innovative sciensut
>> > alternatively youcan ask Gisse
>>
>> And they will agree that a photon has no mass and moves at c
>>
>> [snip insults]
>
> Rest mass should be  considered the fundamental mass. But binding
> energy confuses this.
> A proton or neutron outside the nucleus has more mass than inside. A
> bound proton or neutron has less mass. So which mass is to be
> considered fundamental? the mass inside or outside?
> The mass of a bound nucleon or a free one?
>
> Burt Schwarzkauf
> Mitch Raemsch

Maxwell observed that a measurement
consisted of two parts,

a standard amount of a property,

and the number of standard units of the property
in the property being measured.

He further observed that three properties,
and thus three standard units,
could be used to define all of the other physical properties.

Maxwell selected mass, time, and
as space seemed to be a direction independent property
(isotropic ), he used "del factor",
a three dimensional per unit distance differential operator,
as his third property.

In other words, Maxwell,
the father of Dimensional Analysis,
(The standard that ALL physics models MUST conform to.)
selected mass, time and distance
to be his pointers to the other physical properties.

In 1908, Hermann Minkowski integrated Maxwell's time and del factor
into what is now known as "Minkowski space",
when he observed that times are time periods, and spaces are time intervals,
and both can be quantized in terms of the same standard clock.

At that point all of the physical properties
could be quantized in terms units of two standard properties,
mass and time.

No doubt, two other properties could have been
selected to serve as pointers to the other physical properties.
but it is easier and more precise to maintain
a mass and a time standard than it is to
maintain energy, pressure, momentum, voltage, current, etc.
standards.

The most stable and useable properties to use as standards
are oscillators and masses, that are as close to the observe
as possible, and in a neutral or stable environment.

It doesn't make a lot of sense to use properties
remote from the observer, and in varying and unstable
environments, including the environment of x,y, and z,
as one's standard units.

Rest masses are used as mass standards,
and rest time units (Oscillators)
SHOULD be used for time and space standards.

I might point out that times are basically time periods,
which are auto-correlations using one's standard clock,

and that spaces are basically time intervals,
which are cross-correlations using one's standard clock.

-- 
Tom Potter

*** Time Magazine Person of the Year 2006 ***
*** May 2007 Anti-Bigot Award ***
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