On Nov 21, 8:36 pm, "Y.Porat" <
y.y.po...@gmail.com> wrote:
> On Nov 21, 11:19 am, Timo Nieminen
>
> > > how long it was acting
> > > 5
>
> > > if you say that all that happened at the same frame
> > > why did you got different results ??
>
> > > th e Doppler effect is about TWO FRAMES
> > > iow
> > > two frames that move **different **!!
>
> > > and in that case you have to define
> > > thier difference of movement
> > > or else your case is undefined !!
>
> > IT HAS ALREADY BEEN DEFINED! HAVEN'T YOU BEEN PAYING ANY ATTENTION?
>
> > OK, HERE IT IS AGAIN:
>
> > Take a 1J pulse of light, wavelength 500nm (and 1microsecond in
> > duration, since you insist that the durations matters).
> >------------------------------
>
> easy sesy!!
> if it is 1 microsecond
> it is not hf!!
> f is ONE SECOND DEFINED !!!
> see my op formula
E=hf is irrelevant. This isn't about a single photon. It's about the
energy of a 1J pulse of light. HOW DOES THE DURATION OF THE PULSE
AFFECT THE ENERGY? HOW IS IT RELEVANT?
> your photon is is hf times your 1micro!!!!
> ie you still dint understand my historic op formula
No, it's a 1J pulse of light. Not "hf times 1micro" or such. Just a
1J pulse of light!
> ----
> anyway
> let me go wards you and suggest that we wilL take
> 1 joule photon that is active during
> the famous ONE SECOND
> ok ??
No. You asked me to specify the duration of the pulse, and I chose a
duration.
If you think that the 1J pulse would have a different energy, or a
different momentum, or a different "mass" (according to your
definition of mass) if it was 1 second in duration instead of 1
microsecond, explain. No babble, just a clear explanation.
> > Now, in a coordinate system (ii) moving at 3e7 m/s in the same
> > direction as
> > the pulse of light,
>
> do you mean that the SECONDARY coordinate SYSTEM
> is attached to the photon ??
No. I mean that this coordinate system (it's the 2nd one we're
considering, but it isn't a "secondary" coordinate system) has an
origin that, as measured in the 1st coordinate system, is moving at
3e7 m/s in the same direction as the pulse.
> why not simplify it and day that we have two frames
> that move relatively at 3e7 m/s apart from eack one ?? ??
The direction matters. We need to specify the direction as well.
> what are its wavelength and energy?
>
> -----------------
> please note that ifit is now one second
> it is not as in one micro ''
> all is according one second and definitions become simpler !!
> ------------------
>
> E= hf/lambda
> and you will calculate it
> i am to lazy
> and actually does not matter in pribciple !
Why would you use E=hf/lambda (sic)? We don't have a single photon.
In the 1st coordinate system (1J, 500nm), we have c=f*lambda, so f=c/
lambda. f=3e8/5e-7=6e14Hz. Go ahead, show how E=hf or E=hf/lambda
gives you the 1J of energy!
> > Now, in a coordinate system moving at 3e7 m/s in the opposite
> > direction as the pulse of light, what are its wavelength and energy?
>
> > These quantities are:
> > --------------------
>
> the wavelength willbe shorter that in case above
> so mass momentum acordingly !
Yes, the wavelength will be shorter. It's blueshifted. You already
agreed that the wavelength will be (about) 450nm, and the pulse energy
will be 1.1J.
> ------------------> (i) 500nm, 1.0J
> > (ii) 550nm, 0.9J
> > (iii) 450nm, 1.1J
> > -------------------
>
> no matter wHat will be the relative movement
> COMMING CLOSER OR APART
> as long as TH E ORIGINAL PHOTON WAVE WILL BE KEPT
> CONSTANT IN ALL CASES !!
>
> TH EMOMENTUM ENERGY MASS
> listen carefully
> all of them considering the ****two frames****
> iow
> the overall (again overall !!)
> mass
> energy
> momentum
> wil be the same
> IN THE TWO SYSTEMS !!
You said above "the wavelength willbe shorter that in case above so
mass momentum acordingly !". Now you are saying that they'll be the
same. Which is it? In one post, you're saying two contradictory
things. Which one do you mean?
>
> how come ??
> try to understand my UNPRECEDENTED explantion
> about Dopler effect of photons
> keeping in mind my above formula
> and the mosel of
> 'a machine gun shooting bullets to a target
> no matter if the target is running away
> or comming closer
> always conservation of all consered properties of photons !!!
> ----------------
>
> > This is just the classical Doppler effect. Nothing quantum whatsoever.
> > Photons are irrelevant.
>
> ====================
> you are irrelevant !!!
> =====================
>
> > Since you say that the mass is E/c^2, the "masses" (according to your
> > definition of mass) are:
>
> > (i) 500nm, 1.0J: 1.0J/c^2
> > (ii) 550nm, 0.9J: 0.9J/c^2
> > (iii) 450nm, 1.1J: 1.1J/c^2
>
> > Agree or disagree? Yes or no?
>
> ---------------------------------------------
> depends in ***which*** frame
HAVE YOU FORGOTTEN THE BEGINNING OF THE POST YOU ARE REPLYING TO
ALREADY? GO BACK AND READ IT AGAIN! ***WHICH*** FRAME IS CLEARLY
STATED!!!!! CAN'T YOU UNDERSTAND PLAIN ENGLISH AT ALL?
> IOW
> **IN THE TWO FRAMES **
>
> anything mass momentum energy )
> for the similar photon source
> ******are conserved ******
Nothing about the pulse changes. Conservation of mass, energy,
momentum are irrelevant. THE PULSE DOESN'T CHANGE! Consider the
example of an arrow (given earlier in the discussion), as seen in 3
different frames - in each frame, the momentum and energy are
different, but it's the same arrow. That these quantities are
different in the different frames has NOTHING to do with conservation
of energy and momentum. DO YOU UNDERSTAND THIS SIMPLE AND BASIC POINT?
DO YOU HAVE ANY IDEA, ANY IDEA AT ALL, WHAT A REFERENCE FRAME IS?
I see that ONCE AGAIN, you REFUSED to answer a simple YES/NO question.
The yes/no question that you earlier said you would answer if it was
asked here.
All you did was attempt yet again to bring E=hf into a discussion
where it is irrelevant (Why? Do you think that it has something to do
with relativity?), babble incoherently, abuse and insult. Aren't you
capable of discussing physics like a decent human being? Aren't you
capable of discussing physics?
Why can't you answer a simple yes/no question? Try again, if you are
capable! Just answer the yes/no question at the end, without your
usual insults, abuse, irrelevant babbling on E=hf, and demented
diversions - just answer this question, like you said you would. An
honest man would answer the question he said he would answer; you
haven't answered - aren't you honest? Anyway, the question:
Take a 1J pulse of light, wavelength 500nm (and 1microsecond in
duration, since you insist that the durations matters).
Now, in a coordinate system (ii) moving at 3e7 m/s in the same
direction as
the pulse of light, what are its wavelength and energy?
Now, in a coordinate system (iii) moving at 3e7 m/s in the opposite
direction as the pulse of light, what are its wavelength and energy?
These quantities are:
(i) 500nm, 1.0J
(ii) 550nm, 0.9J
(iii) 450nm, 1.1J
(You already agreed that these values are correct.)