| Topic: |
Science > Physics |
| User: |
"Newton Wasp" |
| Date: |
21 Jul 2006 05:47:57 AM |
| Object: |
Three basic questions |
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
Your help is greatly appreciated
Newton
.
|
|
| User: "" |
|
| Title: Re: Three basic questions |
21 Jul 2006 10:25:02 AM |
|
|
Newton Wasp <faraday@theother.side> wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Simply moving a magnet doesn't produce photons.
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Simply moving a magnet doesn't produce an electromagntic signal.
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
See above; the question is meaningless.
Your help is greatly appreciated
Newton
--
Jim Pennino
Remove .spam.sux to reply.
.
|
|
|
| User: "Newton Wasp" |
|
| Title: Re: Three basic questions |
21 Jul 2006 12:30:26 PM |
|
|
jimp wrote:
Simply moving a magnet doesn't produce photons.
You local village idiot?
Newton
.
|
|
|
| User: "" |
|
| Title: Re: Three basic questions |
21 Jul 2006 01:05:02 PM |
|
|
Newton Wasp <faraday@theother.side> wrote:
jimp wrote:
Simply moving a magnet doesn't produce photons.
You local village idiot?
Yes, that appears to be what you are.
--
Jim Pennino
Remove .spam.sux to reply.
.
|
|
|
|
|
|
| User: "tadchem" |
|
| Title: Re: Three basic questions |
22 Jul 2006 07:16:03 AM |
|
|
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
Your help is greatly appreciated
Newton
A photon has both angular momentum and energy. When a photon is
created both of these properties have to be acquired from the source.
In molecular spectroscopy, for example (pedant's choice, and I am a
chemist) it is found that a moving system of electric charges provides
photon energy by reducing the average distance between the charges
while the angular momentum comes from altering the angular momentum of
a singular electron. Both are accomplished by changing an electron's
molecular orbital.
How is your wiggling of a magnet going to provide *angular* momentum?
Tom Davidson
Richmond, VA
.
|
|
|
| User: "Sorcerer" |
|
| Title: Re: Three basic questions |
22 Jul 2006 11:39:49 AM |
|
|
"tadchem" <tadchem@comcast.net> wrote in message
news:1153570563.483049.195850@m73g2000cwd.googlegroups.com...
|
| Newton Wasp wrote:
| > I have a bar magnet, a small one.
| > I made a machine that moves it up and down in
| > a smooth motion once a second.
| > It moves only very very little, because of the gears.
| >
| > Question 1,
| > will the 1 Hz photon no longer be emitted
| > all of the sudden if it moves with less distance then
| > as to generate a Planck energy quantum?
| >
| > Question 2,
| > the earth moves my magnet around and around every day,
| > is the received electromagnetic signal different in my
| > room then from say the moon?
| >
| > Question 3,
| > if in one frame it moves almost no distance, and in the
| > other frame a lot, how can it emit two different energy quanta
| > at the same time?
| >
| > Your help is greatly appreciated
| >
| > Newton
|
| A photon has both angular momentum and energy. When a photon is
| created both of these properties have to be acquired from the source.
|
| In molecular spectroscopy, for example (pedant's choice, and I am a
| chemist) it is found that a moving system of electric charges provides
| photon energy by reducing the average distance between the charges
| while the angular momentum comes from altering the angular momentum of
| a singular electron. Both are accomplished by changing an electron's
| molecular orbital.
|
| How is your wiggling of a magnet going to provide *angular* momentum?
|
If it can move a compass needle at 1 metre, there will be a delay
of 1/300,000,000th of a second.
Androcles
| Tom Davidson
| Richmond, VA
|
.
|
|
|
|
| User: "Jan Panteltje" |
|
| Title: Re: Three basic questions |
22 Jul 2006 08:27:17 AM |
|
|
On a sunny day (22 Jul 2006 05:16:03 -0700) it happened "tadchem"
<tadchem@comcast.net> wrote in
<1153570563.483049.195850@m73g2000cwd.googlegroups.com>:
How is your wiggling of a magnet going to provide *angular* momentum?
OK I will have a go.
When you move a bar magnet _in any way_, you change the position of the
magnetic field lines in the universe.
You probably have done the experiment with a piece of paper with iron powder,
and a bar magnet under it, showing field lines, some fold back from N to S
but some extend forever (3rd power weaker yes).
Moving such a magnet changes the magnetic field _everywhere_.
_Any_ electron _anywhere_ will react to this with a position change.
If the position changes are big enough an electron based EM detector
will indicate a signal.
So I hope I got this right, and answers Newton's question?
Or are we quantised in field line strength too?
I always thought the concept of 'field' indicated sort of continuous.
What will it be?
.
|
|
|
| User: "tadchem" |
|
| Title: Re: Three basic questions |
22 Jul 2006 11:22:58 AM |
|
|
Jan Panteltje wrote:
On a sunny day (22 Jul 2006 05:16:03 -0700) it happened "tadchem"
<tadchem@comcast.net> wrote in
<1153570563.483049.195850@m73g2000cwd.googlegroups.com>:
How is your wiggling of a magnet going to provide *angular* momentum?
OK I will have a go.
When you move a bar magnet _in any way_, you change the position of the
magnetic field lines in the universe.
You probably have done the experiment with a piece of paper with iron powder,
and a bar magnet under it, showing field lines, some fold back from N to S
but some extend forever (3rd power weaker yes).
Moving such a magnet changes the magnetic field _everywhere_.
_Any_ electron _anywhere_ will react to this with a position change.
If the position changes are big enough an electron based EM detector
will indicate a signal.
Changing the magnetic field around an electron will apply a linear
force to it. The OP was asking about *photons*, which require angular
momentum.
Linear is not angular.
What will it be?
Laphroaig, neat, with a black coffee chaser.
Tom Davidson
Richmond, VA
.
|
|
|
| User: "Timo A. Nieminen" |
|
| Title: Re: Three basic questions |
22 Jul 2006 03:40:27 PM |
|
|
On Sun, 22 Jul 2006, tadchem wrote:
Jan Panteltje wrote:
<tadchem@comcast.net> wrote:
How is your wiggling of a magnet going to provide *angular* momentum?
OK I will have a go.
When you move a bar magnet _in any way_, you change the position of the
magnetic field lines in the universe.
[cut]
_Any_ electron _anywhere_ will react to this with a position change.
If the position changes are big enough an electron based EM detector
will indicate a signal.
Changing the magnetic field around an electron will apply a linear
force to it. The OP was asking about *photons*, which require angular
momentum.
So, where is the angular momentum in a centre-fed straight wire antenna?
Yet it radiates. Put the photons through a circular-polarisation
beamsplitter, and half go one way, and half the other. Mean AM = 0.
Accelerated charges will produce photons (except for the special cases
when they won't), whether there is angular momentum involved or not.
Apart from which, the single photon will have _spin_ of +/- hbar, not
angular momentum of +/- hbar, since AM = spin + orbital AM.
What will it be?
Laphroaig, neat, with a black coffee chaser.
I'd go for that right now, except I'm out of Laphroaig :(, perhaps I can
pour myself a gin in the wee hours of the morning. With a black coffee
chaser. (No, don't put gin in the coffee. Most spirits go OK in coffee,
one can even drink Bundy in coffee. Gin and kaoliangju go against this
trend. Hmm, I think I can smell Frangelico in coffee on the way! Try this:
red wine and strong black coffee, 50:50.)
--
Timo Nieminen - Home page: http://www.physics.uq.edu.au/people/nieminen/
E-prints: http://eprint.uq.edu.au/view/person/Nieminen,_Timo_A..html
Shrine to Spirits: http://www.users.bigpond.com/timo_nieminen/spirits.html
.
|
|
|
|
| User: "Jan Panteltje" |
|
| Title: Re: Three basic questions |
22 Jul 2006 12:40:39 PM |
|
|
On a sunny day (22 Jul 2006 09:22:58 -0700) it happened "tadchem"
<tadchem@comcast.net> wrote in
<1153585378.263586.239210@75g2000cwc.googlegroups.com>:
Jan Panteltje wrote:
On a sunny day (22 Jul 2006 05:16:03 -0700) it happened "tadchem"
<tadchem@comcast.net> wrote in
<1153570563.483049.195850@m73g2000cwd.googlegroups.com>:
How is your wiggling of a magnet going to provide *angular* momentum?
OK I will have a go.
When you move a bar magnet _in any way_, you change the position of the
magnetic field lines in the universe.
You probably have done the experiment with a piece of paper with iron powder,
and a bar magnet under it, showing field lines, some fold back from N to S
but some extend forever (3rd power weaker yes).
Moving such a magnet changes the magnetic field _everywhere_.
_Any_ electron _anywhere_ will react to this with a position change.
If the position changes are big enough an electron based EM detector
will indicate a signal.
Changing the magnetic field around an electron will apply a linear
force to it. The OP was asking about *photons*, which require angular
momentum.
Actually a moving electron in a magnetic field will start to spiral,
think for example the common household appliance 'magnetron' or microwave.
Linear is not angular.
That is true!
What will it be?
Laphroaig, neat, with a black coffee chaser.
mm I have a pizza, was watching golf with Tiger Woods, tomorrow
last day...
After watching that I am not sure I can give deep thought on physics,
but I will sleep on your remark and if I come up with anything come back on
it...
This motion thing (you may argue 'electron' does not move), is relative
to the universal magnetic field (lines), so likely there is almost always
some motion?
Sorry best I can come up with now, my apologies.
Here is you coffee
\===/^
\_/
.
|
|
|
|
|
|
| User: "malibu" |
|
| Title: Re: Three basic questions |
22 Jul 2006 09:37:38 PM |
|
|
tadchem wrote:
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
Your help is greatly appreciated
Newton
A photon has both angular momentum and energy. When a photon is
created both of these properties have to be acquired from the source.
In molecular spectroscopy, for example (pedant's choice, and I am a
chemist) it is found that a moving system of electric charges provides
photon energy by reducing the average distance between the charges
while the angular momentum comes from altering the angular momentum of
a singular electron. Both are accomplished by changing an electron's
molecular orbital.
How is your wiggling of a magnet going to provide *angular* momentum?
How does your randomly-moving electron claim
angular momentum at all?
Solve a math problem by thinking randomly.
Get an answer?
Neither can randomly-moving electrons, or 'singular'
ones either.
Here's a molecular orbital:
http://users.accesscomm.ca/john/IWIN1.GIF
It is 25% shorter than two atomic orbitals.
What does *your*
molecular orbital look like?
Point to the 'angular momentum' you speak of.
Sheesh!
When they want something like angular momentum,
there it is.
But an electron has no specified path?
Doublespeak. 1984.
John
Galaxy Model for the Atom
http://users.accesscomm.ca/john
.
|
|
|
| User: "tadchem" |
|
| Title: Re: Three basic questions |
24 Jul 2006 04:01:43 AM |
|
|
malibu wrote:
<snip>
How does your randomly-moving electron claim
angular momentum at all?
Solve a math problem by thinking randomly.
Get an answer?
Neither can randomly-moving electrons, or 'singular'
ones either.
Reduced to attacking straw men in you desperate quest for a rhetorical
victory, are you now?
Tom Davidson
Richmond, VA
.
|
|
|
|
|
|
| User: "Timothy Golden BandTechnology.com" |
|
| Title: Re: Three basic questions |
25 Jul 2006 08:30:12 AM |
|
|
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
Your help is greatly appreciated
Newton
Nice question.
It makes me feel very uncomfortable.
Here are some low frequency links:
http://en.wikipedia.org/wiki/Schumann_resonance
http://en.wikipedia.org/wiki/Extremely_low_frequency
http://www.w1tag.com/Modes.htm
The last link talks about signal to noise ratio.
With enough added components you will be able to coax a 1 Hz signal and
detect it with a distant receiver.
As far as we know there is no upper or lower frequency limit in the
electromagnetic spectrum. It is a surprisingly clean space with
phenomenal variational qualities all squeezed onto a line. We claim to
know that the photon equivalent goes to lower energy levels as the
frequency drops and should reach 0 at 0 Hz. This would seem to be a
paradoxical place and what signal to noise ratio is down there must be
of interest. But the particle/wave duality is what you seem to be after
and the answer doesn't seem to be any clearer down there. That an
electron can flow in a continuous fashion through a wire and generate
electromagnetic radiation or can just jump down a level within an atom
and generate electromagnetic radiation seems to be the main division.
I respect the wave theory over the photon theory.
I recall reading some Feynman book where he's having a discussion about
whether he would trust the photon counter. I have my doubts. This does
not necessarily interfere with the spectral output of various elements.
It is clear that they have resonances of precise nature. But beyond
this the experiments do not generally concern themselves with
conservation of photons. Losses are generally accepted and
unpreventable. Until photon conservation is proven the model is
incompletely demonstrated.
http://www.nobeliefs.com/photon.htm
It's all quite a puzzle still. That modern physicists and scientists
accept this dichotomy may one day be seen as a failing of humanity.
That humans will bear such conflicts is an indicator of our fundamental
properties. Still, to just be a naysayer is not enough. We are supposed
to be looking for the answer. Like Shakespeare's monkeys, perhaps we'll
eventually get a sonnet. So far it looks as if we're only half way.
-Tim
.
|
|
|
|
| User: "Sam Wormley" |
|
| Title: Re: Three basic questions |
21 Jul 2006 11:09:10 AM |
|
|
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
Your help is greatly appreciated
Newton
Moving a magnet with respect to what? You may think that a
silly question--but think about it.
.
|
|
|
| User: "Newton Wasp" |
|
| Title: Re: Three basic questions |
21 Jul 2006 12:30:14 PM |
|
|
Sam Wormley wrote:
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
Your help is greatly appreciated
Newton
Moving a magnet with respect to what? You may think that a
silly question--but think about it.
No, I think it is not silly, well, one was relative to my room,
the other one to the moon.
This was exactly what I wanted to know, so what is it?
Thank you anyway!
Newton
.
|
|
|
|
|
| User: "Sam Wormley" |
|
| Title: Re: Three basic questions |
21 Jul 2006 11:49:45 AM |
|
|
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
Your help is greatly appreciated
Newton
Moving a magnet with respect to what? You may think that a
silly question--but think about it.
.
|
|
|
|
| User: "Sue..." |
|
| Title: Re: Three basic questions |
21 Jul 2006 10:11:45 AM |
|
|
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
The device won't emit light unless its motion is
relative to a conductor whose aperature (~size~)
is a signifigant fraction of !/2 wavelength at 1 Hz.
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Without an effective coupling structure the signal will
diminish by 1/r^3, barely having anything detectable
outside the door of your room.
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
No. There is no atomic emission or absorption involved
in the function of a bar magnet so quanta are not
useful to describe the fields.
Your help is greatly appreciated
Oh! Then I'll offer more. :o)
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm
http://farside.ph.utexas.edu/teaching.html
http://nobelprize.org/physics/articles/ekspong/index.html
Sue...
Newton
.
|
|
|
| User: "Sorcerer" |
|
| Title: Re: Three basic questions |
22 Jul 2006 11:36:28 AM |
|
|
"Sue..." <suzysewnshow@yahoo.com.au> wrote in message
news:1153494705.339710.132480@s13g2000cwa.googlegroups.com...
| Newton Wasp wrote:
| > I have a bar magnet, a small one.
| > I made a machine that moves it up and down in
| > a smooth motion once a second.
| > It moves only very very little, because of the gears.
| >
| > Question 1,
| > will the 1 Hz photon no longer be emitted
| > all of the sudden if it moves with less distance then
| > as to generate a Planck energy quantum?
|
| The device won't emit light
Yes it will. The magnetic field at 186,000 miles from the device
will also oscillate at 1 Hz, small though it may be.
unless its motion is
| relative to a conductor whose aperature (~size~)
| is a signifigant fraction of !/2 wavelength at 1 Hz.
The wavelength is 186,000 miles. So what?
| > Question 2,
| > the earth moves my magnet around and around every day,
| > is the received electromagnetic signal different in my
| > room then from say the moon?
|
| Without an effective coupling structure the signal will
| diminish by 1/r^3, barely having anything detectable
| outside the door of your room.
What does "barely detectable" have to do with anything?
He didn't say the magnet was a fridge magnet, or how FAR
it moved at 1 Hz. "Very little" is a relative term, the gears
could be a mile in diameter.
| >
| > Question 3,
| > if in one frame it moves almost no distance, and in the
| > other frame a lot, how can it emit two different energy quanta
| > at the same time?
|
| No. There is no atomic emission or absorption involved
| in the function of a bar magnet so quanta are not
| useful to describe the fields.
Why not? If the magnet moves once, that is a quantum of energy.
A distant compass needle outside his door will absorb that
quantum. Heck, you are the one always going on about Mt Paranel
getting 4 quanta at once, but the other three receivers don't get any
from my laser pointer.
|
| >
| > Your help is greatly appreciated
|
| Oh! Then I'll offer more. :o)
No thanks. You are no help.
Androcles.
.
|
|
|
|
| User: "Newton Wasp" |
|
| Title: Re: Three basic questions |
21 Jul 2006 12:30:42 PM |
|
|
Sue wrote:
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
The device won't emit light unless its motion is
relative to a conductor whose aperature (~size~)
is a signifigant fraction of !/2 wavelength at 1 Hz.
OK, but a loop of copper wire will pick up the field,
it will have a current in it, even if the loop is small?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Without an effective coupling structure the signal will
diminish by 1/r^3, barely having anything detectable
outside the door of your room.
Yes, of course, but the issue is then one of detector sensitivity,
and the detectro would need to knock an electron free to do anything,
so tha tdetection is quanitised.
But I wonder how far a SQUID type detectro could 'feel' my magnet.
That is the most sensitive detector we have now?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
No. There is no atomic emission or absorption involved
in the function of a bar magnet so quanta are not
useful to describe the fields.
Agreed, important that you see this, easily overlooked.
Your help is greatly appreciated
Oh! Then I'll offer more. :o)
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm
http://farside.ph.utexas.edu/teaching.html
http://nobelprize.org/physics/articles/ekspong/index.html
Sue...
Newton
Thank you Sue, this first link is very nice, the second I will
have to enlist I guess... The third link shows so many clever people,
very nice and clear to read about that.
Much appreciated.
Newton
.
|
|
|
| User: "Sue..." |
|
| Title: Re: Three basic questions |
22 Jul 2006 03:56:33 AM |
|
|
Newton Wasp wrote:
Sue wrote:
Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
The device won't emit light unless its motion is
relative to a conductor whose aperature (~size~)
is a signifigant fraction of !/2 wavelength at 1 Hz.
OK, but a loop of copper wire will pick up the field,
it will have a current in it, even if the loop is small?
The loop won't be small. It will be about 100 million meters
diameter.It doesn't have to be a loop either. The E-plane
coupling to free space will 'complete' the circuit.
This is what Maxwell mistakenly viewed a fluid-like
displacement current.
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Without an effective coupling structure the signal will
diminish by 1/r^3, barely having anything detectable
outside the door of your room.
Yes, of course, but the issue is then one of detector sensitivity,
and the detector would need to knock an electron free to do anything,
so tha tdetection is quanitised.
But I wonder how far a SQUID type detector could 'feel' my magnet.
That is the most sensitive detector we have now?
'Light' is a farfied effect (1/r^2). The SQUID is a nearfield probe
(1/r^3). So in terms of 'range' it really doesn't get you much
improvement. People quantise, Nature adds. You have to
be careful porting the imaginary mechanism of a mathematical
formalism into a qualitative description of phenomena.
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
No. There is no atomic emission or absorption involved
in the function of a bar magnet so quanta are not
useful to describe the fields.
Agreed, important that you see this, easily overlooked.
Your help is greatly appreciated
Oh! Then I'll offer more. :o)
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm
http://farside.ph.utexas.edu/teaching.html
http://nobelprize.org/physics/articles/ekspong/index.html
Sue...
Newton
Thank you Sue, this first link is very nice, the second I will
have to enlist I guess... The third link shows so many clever people,
very nice and clear to read about that.
Much appreciated.
Ya welcome :-)
Sue...
Newton
.
|
|
|
|
|
|
| User: "Timo A. Nieminen" |
|
| Title: Re: Three basic questions |
21 Jul 2006 02:50:30 PM |
|
|
On Fri, 21 Jul 2006, Newton Wasp wrote:
I have a bar magnet, a small one.
I made a machine that moves it up and down in
a smooth motion once a second.
It moves only very very little, because of the gears.
Question 1,
will the 1 Hz photon no longer be emitted
all of the sudden if it moves with less distance then
as to generate a Planck energy quantum?
Question 2,
the earth moves my magnet around and around every day,
is the received electromagnetic signal different in my
room then from say the moon?
Question 3,
if in one frame it moves almost no distance, and in the
other frame a lot, how can it emit two different energy quanta
at the same time?
It isn't the motion that's important, it's the oscillation, which is the
same in both frames. A uniformly moving magnet won't radiate. For low v,
the frequency of oscillation and the acceleration of the magnet are the
same in all low v inertial coordinate systems (aka reference frames), so
what's the problem?
Galileo: motion, bah; acceleration, yay!
--
Timo Nieminen - Home page: http://www.physics.uq.edu.au/people/nieminen/
E-prints: http://eprint.uq.edu.au/view/person/Nieminen,_Timo_A..html
Shrine to Spirits: http://www.users.bigpond.com/timo_nieminen/spirits.html
.
|
|
|
|
|
Related Articles |
|
|
