Magnetizing steel with silk??
jeff_wisnia
I just watched the movie "The Edge" on Netflix and thought it odd that
the central character magnetized a paperclip to make a floating compass
by rubbing it on his silk shirt cuff.
I've shown my kids a floating compass after magnetizing a sewing needle
by sliding it against a rare earth magnet, but agsinst silk, I think not.
I'm aware you can magnetize a steel rod by holding it in one orientation
and repeatedly whacking it with a hammer, but rubbing steel on silk
strikes me as BS.
Am I correct, and was that just a bit of artistic license for that movie?
Thanks Guys, and Happy Holidays,
Jeff
--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10e12 furlongs per fortnight.
Androcles
"jeff_wisnia" <jwisnia...@conversent.net> wrote in message
news:Z-adncy6D5q5BovQ...@giganews.com...
|
| I just watched the movie "The Edge" on Netflix and thought it odd that
| the central character magnetized a paperclip to make a floating compass
| by rubbing it on his silk shirt cuff.
|
| I've shown my kids a floating compass after magnetizing a sewing needle
| by sliding it against a rare earth magnet, but agsinst silk, I think not.
|
| I'm aware you can magnetize a steel rod by holding it in one orientation
| and repeatedly whacking it with a hammer, but rubbing steel on silk
| strikes me as BS.
|
| Am I correct, and was that just a bit of artistic license for that movie?
|
| Thanks Guys, and Happy Holidays,
|
| Jeff
Sounds like plausible BS, mixing a static charge on a polished 'ebony' rod
with sliding a steel pin against a magnet. Ebonite is NOT ebony.
Pretty easy to test, though.
Helmut Wabnig
<jwisnia...@conversent.net> wrote:
>
>I just watched the movie "The Edge" on Netflix and thought it odd that
>the central character magnetized a paperclip to make a floating compass
>by rubbing it on his silk shirt cuff.
>
>I've shown my kids a floating compass after magnetizing a sewing needle
>by sliding it against a rare earth magnet, but agsinst silk, I think not.
>
>I'm aware you can magnetize a steel rod by holding it in one orientation
>and repeatedly whacking it with a hammer, but rubbing steel on silk
>strikes me as BS.
>
>Am I correct, and was that just a bit of artistic license for that movie?
>
>Thanks Guys, and Happy Holidays,
>
>Jeff
Modern physics education in middle and high school by female teachers.
(An American High School is equivalent to middle or less
in other countries)
I have seen a female physics teacher instructing the 14 year olds
that iron does not conduct electricity, and only after fierce protests
by parents she would correct her nonsense.
Well, there you go.
w.
Greg Neill
>
> Modern physics education in middle and high school by female teachers.
And presumably male teachers are always right due to their
superior male-ness super powers? How quaintly misogynistic.
hanson
<hwabnig@ .- --- -. dotat>, is a fanatical hater of Brits
and the USA. Wabnigger was a Hitler Youth who used
to finger Jews to the SS & then licked the jackboots of
Nazi General Milch, ... which underscores Androcles'
impression that Wabnigger is a "stupid fuck"...
<http://tinyurl.com/Helmut-Wabnig-is-a-stupid-fuck>
>
>
"Helmut Wabnig" <hwabnig@ .- --- -. dotat> wrote:
> "Greg Neill" <gnei...@MOVEsympatico.ca> wrote:
>> jeff_wisnia > <jwisnia...@conversent.net> wrote:
>
jeff_wisnia wrote:
>> in the movie "The Edge" the central character magnetized
>> his silk shirt cuff.
>>and repeatedly whacking it with a hammer, but rubbing steel
>> on silk strikes me as BS.
>>
> An American High School is equivalent to middle or less
>
hanson wrote:
<http://tinyurl.com/Nazi-Wabnig-is-a-US-Jew-hater>
wherein it says:
You can be forgiven that you hate America and US
soldiers who liberated you in your native WW2 Austria.
and saved you, Helmut Wabnig, from having gone
into one of Hitler's ovens, and later prevented you
from an existence in one of Stalin's Gulags for you
having been the mentally deficient fanatic that you are.
Wabnig wabniggered & wrote:
> Modern physics education in middle and high school by
> female teachers.
> that iron does not conduct electricity, and only after fierce protests
> by parents she would correct her nonsense.
> Well, there you go.
>
> And presumably male teachers are always right due to their
> superior male-ness super powers? How quaintly misogynistic.
>
... which is why Androcles said:
<http://tinyurl.com/Helmut-Wabnig-is-a-stupid-fuck>
wherein one reads that:
|||| Wabnigger said: "Convert to the ONE & ONLY Religion of Relativity"
|||| Wabnigger said: "I am an Einstein Dingleberry!"
|||| Wabnigger said: "Nobody on the internet knows that I am a dog"
|||| Wabnigger said: "I have seen an UFO yesterday!"
<http://tinyurl.com/Wabnigs-GPS-Dingleberries>
<http://tinyurl.com/Potter-explains-GPS-to-Wabnig>
Sam Wormley
>
> I just watched the movie "The Edge" on Netflix and thought it odd that
> the central character magnetized a paperclip to make a floating compass
> by rubbing it on his silk shirt cuff.
>
> I've shown my kids a floating compass after magnetizing a sewing needle
> by sliding it against a rare earth magnet, but agsinst silk, I think not.
>
> I'm aware you can magnetize a steel rod by holding it in one orientation
> and repeatedly whacking it with a hammer, but rubbing steel on silk
> strikes me as BS.
>
> Am I correct, and was that just a bit of artistic license for that movie?
>
> Thanks Guys, and Happy Holidays,
>
> Jeff
Simple experiment--Demagnetize the paper clip. Demonstrate that
the paperclip is not magnetic pole seeking. Rub it as much and
as long as you like with silk. Demonstrate that the paper clip
is still not magnetic pole seeking. Draw conclusion that silk did
not magnetize the paper clip.
Richard Tobin
Helmut Wabnig <hwabnig@ .- --- -. dotat> wrote:
>Modern physics education in middle and high school by female teachers.
YAAUAICMFP
-- Richard
bert
>
> - Show quoted text -
Stainless steel can not become a magnet. Hmmm I don't know why that
is. Sam please tell me Thanks in advance TreBert
Sam Wormley
>
> Stainless steel can not become a magnet. Hmmm I don't know why that
> is. Sam please tell me Thanks in advance TreBert
Actually most stainless steel is weakly ferromagnetic, Tre.
Background:
http://en.wikipedia.org/wiki/Ferromagnetism
"The reason for this is that a bulk piece of ferromagnetic material is
divided into many tiny magnetic domains (also known as Weiss domains).
Within each domain, the spins are aligned, but (if the bulk material is
in its lowest energy configuration, i.e. "unmagnetized"), the spins of
separate domains point in different directions and their magnetic fields
cancel out, so the object has no net large scale magnetic field.
"Ferromagnetic materials spontaneously divide into magnetic domains
because this is a lower energy configuration. At long distances (after
many thousands of ions), the exchange energy advantage is overtaken by
the classical tendency of dipoles to anti-align. The boundary between
two domains, where the magnetization flips, is called a domain wall
(i.e., a Bloch/Néel wall, depending upon whether the magnetization
rotates parallel/perpendicular to the domain interface) and is a gradual
transition on the atomic scale (covering a distance of about 300 ions
for iron)".
Sam Wormley
>
> This is entirely possible. The silk produces static charge via
> friction with the needle and so is able to magnetize it, it is in fact
> literally rubbing electrons from the surface of the needle in the
> process. The very word electron was named after the Greek word for
> amber, as they had found rubbing an amber rod with silk or fur
> produced static charge, of course the discovery of the electron itself
> did not occur until much later.
>
> At least this is what I can recall from school. As for stainless
> steel's inability to be magnetized I've no idea, perhaps the alloying
> with Chromium disrupts the alignment of the magnetic domains within
> the iron?
An experiment is worth a thousand expert opinions!
Simple experiment--Demagnetize a paper clip. Demonstrate that
Jeroen Belleman
> On 1/17/11 9:07 AM, GrigorianWatch wrote:
>>> I just watched the movie "The Edge" on Netflix and thought it odd that
>>> the central character magnetized a paperclip to make a floating compass
>>
>> This is entirely possible. The silk produces static charge via
>> friction with the needle and so is able to magnetize it, it is in fact
>> literally rubbing electrons from the surface of the needle in the
>> At least this is what I can recall from school. [...]
>
> An experiment is worth a thousand expert opinions!
>
> Simple experiment--Demagnetize a paper clip. Demonstrate that
> the paperclip is not magnetic pole seeking. Rub it as much and
> as long as you like with silk. Demonstrate that the paper clip
> is still not magnetic pole seeking. Draw conclusion that silk did
> not magnetize the paper clip.
>
A failed experiment doesn't prove that something can't be done.
Rubbing a paper clip with silk is not going magnetize it.
Trying to electrostatically charge a paperclip by rubbing
it with silk is most likely to fail too, for that matter.
Even if you *do* manage to do so, it won't point north.
Electrostatic charge is entirely different from magnetization.
Jeroen Belleman
