Ask a physicist anything.

[pgp_protector]

Magnetic fields are created by moving charge (e.g., electrons whizzing through space). To generate a field of 0 Hz, the charges would have to be stationary. But if they're stationary, they don't generate a magnetic field. Of course, you could define a zero-strength EM field to exist when no charges are moving, and it wouldn't do much damage to physics. It'd be an unorthodox description of electromagnetics, but it would work.

So what's the Frequency of a Bar Magnet that's not moving?
(Last time I checked it Did have a Magnet Field)

 

[AV1611VET]

One of our missionaries to England was preaching in our church one night, and he mentioned that in England, a person's yard is referred to as a 'garden'.

After the sermon, I asked him why England calls their law enforcement agency 'Scotland Yard', and he didn't know.

Do you?

Also: In the Christmas song, God Rest Ye Merry Gentlemen, where does the comma go, and why?

 

[Jazmyn]

The name of the headquarters is derived from its original location on Great Scotland Yard, a street within Whitehall. The exact origins of the name are unknown, but one explanation is that the site had once been used as a diplomatic mission owned by the Kings of Scotland, prior to the 1707 Union of England and Scotland; another being that the street was owned by a man called Scott during the Middle Ages, or that stagecoaches bound for Scotland once departed from the street.
Scotland Yard - Wikipedia, the free encyclopedia

 

[Wiccan_Child]

One of our missionaries to England was preaching in our church one night, and he mentioned that in England, a person's yard is referred to as a 'garden'.

After the sermon, I asked him why England calls their law enforcement agency 'Scotland Yard', and he didn't know.

Do you?

The name of the headquarters is derived from its original location on Great Scotland Yard, a street within Whitehall. The exact origins of the name are unknown, but one explanation is that the site had once been used as a diplomatic mission owned by the Kings of Scotland, prior to the 1707 Union of England and Scotland; another being that the street was owned by a man called Scott during the Middle Ages, or that stagecoaches bound for Scotland once departed from the street.
Scotland Yard - Wikipedia, the free encyclopedia

What she said . A yard is a medium to large enclosed area, though in modern (British) English it usually refers to a back-garden (though it's not uncommon to refer to other things as a yard). Scotland Yard harkens back those olden days when 'yard' meant other things.

Also: In the Christmas song, God Rest Ye Merry Gentlemen, where does the comma go, and why?

It disappears for the same reason people use the word 'ye': it's God rest you merry, gentlemen. My first suspicion is that it means "May God put you to rest in a merry state", or something thereabouts. Which, I'm pleased to say, is pretty much exactly what Wikipedia (peace be upon it) says: "Subjunctive mood: should be read to mean "may God rest you merrily, gentlemen."

Anyway, the comma doesn't disappear, it's just mistakenly omitted by some people. Most people think it's God rest ye, merry gentlemen, which is doubley wrong.

 

[Wiccan_Child]

So what's the Frequency of a Bar Magnet that's not moving?
(Last time I checked it Did have a Magnet Field)

In a metal, the electrons are free to move as they wish. That's why we can create surprisingly accurate descriptions of their behaviour by modelling them as being free (or 'nearly' free). Anyway, this means that they can flow in a circuit, if they so wish. In a permanent magnet, the material is not a homogenous lattice, but shards of mini-magnets all pointing in the same direction. That's how you can make other materials magnetic by holding another magnet near them: all the mini-magnets line up.

So the 'frequency' of the magnetic field created by a bar magnet would depend on how fast the electrons are flowing round the domain boundaries.

 

[pgp_protector]

In a metal, the electrons are free to move as they wish. That's why we can create surprisingly accurate descriptions of their behaviour by modelling them as being free (or 'nearly' free). Anyway, this means that they can flow in a circuit, if they so wish. In a permanent magnet, the material is not a homogenous lattice, but shards of mini-magnets all pointing in the same direction. That's how you can make other materials magnetic by holding another magnet near them: all the mini-magnets line up.

So the 'frequency' of the magnetic field created by a bar magnet would depend on how fast the electrons are flowing round the domain boundaries.

Wouldn't the Flow around the domain boundaries determine the Strength (Oe Field)
The Frequency (IIRC) would be a Change of Field Strength over Time.

 

[Wiccan_Child]

Wouldn't the Flow around the domain boundaries determine the Strength (Oe Field)
The Frequency (IIRC) would be a Change of Field Strength over Time.

Exactly. Frequency is related to strength is related to electron flow. A non-zero field strength means a non-zero frequency.

The number of electrons determines how much charge is moving, which determines how strong the field is. The speed at which their moving determines the frequency.

 

[AV1611VET]

The name of the headquarters is derived from its original location on Great Scotland Yard, a street within Whitehall.

What she said .

Thank you both.

It disappears for the same reason people use the word 'ye': it's God rest you merry, gentlemen.

Just FYI, the KJV makes the distinction between you [singular] and you [plural].

'Ye' is you [plural].

As Gail A. Riplinger points out, this is one of the reasons the King James Version is easier to understand than today's English language.

As I understand it, the custom when two people passed each other on the street was to say, 'God rest ye (or you, if it was just one person) merry.'

 

[pgp_protector]

Exactly. Frequency is related to strength is related to electron flow. A non-zero field strength means a non-zero frequency.

The number of electrons determines how much charge is moving, which determines how strong the field is. The speed at which their moving determines the frequency.

Not quite.
Frequency is Change in Strength over time.
A DC Field has a Frequency of 0Hz (Think 9Volt Battery)
An AC Field (Think Line Current) has a Frequency of 60 HZ, the Strength of the Field Goes From Maximum To Minimum & Back 60 Times in 1 Second.

In Both They Can have the Name Number of Electrons Moving (I) with the Same Potential Energy (V)

 

[Wiccan_Child]

Not quite.
Frequency is Change in Strength over time.
A DC Field has a Frequency of 0Hz (Think 9Volt Battery)
An AC Field (Think Line Current) has a Frequency of 60 HZ, the Strength of the Field Goes From Maximum To Minimum & Back 60 Times in 1 Second.

In Both They Can have the Name Number of Electrons Moving (I) with the Same Potential Energy (V)

Yes, I know how AC and DC currents operate. I think you're conflating the various was we can define 'frequency', be it electron oscillation, electron excitation cycles, etc. We were originally talking about the frequency of light, after all, which is unrelated to the frequency with which its source electrons are oscillating, or the frequency with which they alternate current. We were talking about a 0Hz photon, not a 0Hz electric current.

 

[Wiccan_Child]

Thank you both.Just FYI, the KJV makes the distinction between you [singular] and you [plural].

'Ye' is you [plural].

As Gail A. Riplinger points out, this is one of the reasons the King James Version is easier to understand than today's English language.

As I understand it, the custom when two people passed each other on the street was to say, 'God rest ye (or you, if it was just one person) merry.'

English is one of the few languages whose second person personal pronouns are the same in the singular and plural cases. Russians have ты and вы, for instance (I'd quote other languages, but the only one I know is Russian ).

 

[Chesterton]

Speaking of the English yard:

Aside from Kelvin, what's better for measuring temperature - the Fahrenheit or the Celsius scale?

I ask because years ago I read a discussion among a group of scientists who all agreed that they wished the U.S. would follow the world and adopt the metric system, except for temperature, where they wished the world would follow the U.S. and use the Fahrenheit scale. But I can't remember their reasoning. Any thoughts?

 

[AV1611VET]

English is one of the few languages whose second person personal pronouns are the same in the singular and plural cases. Russians have ты and вы, for instance (I'd quote other languages, but the only one I know is Russian ).

Я получаю впечатление, котор вы будете educated человеком.

 

[Wiccan_Child]

Я получаю впечатление, котор вы будете educated человеком.

Your English is showing . But thank you for the compliment .

 

[Wiccan_Child]

Speaking of the English yard:

Aside from Kelvin, what's better for measuring temperature - the Fahrenheit or the Celsius scale?

I ask because years ago I read a discussion among a group of scientists who all agreed that they wished the U.S. would follow the world and adopt the metric system, except for temperature, where they wished the world would follow the U.S. and use the Fahrenheit scale. But I can't remember their reasoning. Any thoughts?

I much prefer Celsius to Fahrenheit. It took me ages to realise that when people said "their fever is over 100°!", they weren't talking °C! But maybe the scientists prefer Fahrenheit for the same reason I prefer miles to kilometres: it's just how I visualise distances.

Ostensible, any temperature scale will suffice. But given the logic of Celsius, I prefer it. Well, I prefer Kelvin, but there you go.

 

[Doveaman]

Even Anthony Peratts model may look impressive, but you can do exactly the same with a gravitational model

If the gravitational model can simulate galaxy formation using basic principles found in nature as the electric model does I would be happy to take a look. Hypothetical dark matter and black holes are not allowed since they are not found in nature.

Electric Galaxy

Galaxy formation - (The Plasma Universe)

 

[pgp_protector]

If the gravitational model can simulate galaxy formation using basic principles found in nature as the electric model does I would be happy to take a look. Hypothetical dark matter and black holes are not allowed since they are not found in nature.

Electric Galaxy

Galaxy formation - (The Plasma Universe)

They're not ?
Active Galaxies

 

[Doveaman]

They're not ?
Active Galaxies

Here’s a riddle:

I know of a man lost in the desert who saw Burger King in the distance. What did he really see?

 

[AV1611VET]

Here’s a riddle:

I know of a man lost in the desert who saw Burger King in the distance. What did he really see?

Was his name Arthur Treacher?

 

[Jazmyn]

What is the maximum number of slices can you obtain by cutting
a cake with only 4 cuts?