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Right hand rule



 
 
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  #11  
Old October 25th 03 posted to sci.physics
jmfbahciv@aol.com
external usenet poster
 
Posts: 7,899
Default Right hand rule

In article ,
(Edward Green) wrote:
"Tom Potter" wrote in message

...

"Sam Wormley" wrote in message
...
David Moran wrote:

Hi,

I am a physics student with a physical disability that limits my

motor
skills. I am wondering if there are any alternatives to the right

hand
rule.
I understand the the principle, but my motor skills make it

difficult to
carry out. Any help would be appreciated..

Too bad you can't just visualize the right hand rule outcome with your

brain...
Too bad, indeed! Reminds me of space**** and tj...


I had my suspicions about this post too. A motor disabled physics
student should be able to find some work-around -- if he/she has any
hope of using physics in the first place. Of course the chance that
the question is sincere places a large negative weight on voicing this
horrible suspicion of being put upon.


If he's motor disabled then he's got an armrest with supports.
Have somebody draw arrows on them.


One thinks of the modified "right arm rule", requiring less fine motor
skills: one rotates one's right arm from a position outstretched at
one's side to one's front, and one's head points in the desired
direction.


None of this works for me. I need mine to coincide at the origin.

.. Actually, anytime I -- infrequently -- find myself
actually trying to check the sign in some calculation involving cross
products, I do find myself muttering and contorting my right hand in
strange configuration and orientations: it's important for the process
that one's hand be oriented in space the same way as the visualized
vectors.

It appears that "Sam Wormley" does not know
that brain mapping shows that
the tongue, the eyes, and the hands
consume much (most?) of the resources of the brain,
and that the interplay between these elements
is critical to learning and thinking.


Hmm... I also find that, ahem, moving my tongue (vulgarly called
"talking to oneself), is a great aid in solving complex problems. In
fact, for the very hardest problems, one must both walk around,
gesticulate, and mutter to engage the full brain faculties.


I distinctly remember you using Baez' method of lying down and
etching diagrams behind your eyelids.

.. I guess
that's what that possibly apocryphal Einstein quote was about: lack of
privacy and inhibition prevent the gesticulation and muttering
approach to most problems, hence inhibit full brain function.
....


You forgot the most important tool, the blackboard. I had to have
a blackboard.


It is no accident that finger counting is an almost universal stage in

the
child's learning of arithmetic
(though it is unclear where one ancient New Guinea culture fits in -
it has a 33 base system, which includes toes, testicles and penis, said

Prof
Butterworth)."


ROTFL, even if you made that up! Imagine the embarassment when first
doing business with this culture, and your contact begins counting on
his genitals. Can women count too in this society?


Nope. Their hands are needed for the extra 10 digits that males
don't have attached.

Then there is the peculiar idiom "to count coup", which I think
basically means to beat: that's counting on somebody else's head --
perhaps also the origin of the expression "thinking makes my head
hurt".


I thought head hurting was what happened when you stopped hitting
it against the wall. When I think, my hair hurts.

/BAH

Subtract a hundred and four for e-mail.
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  #12  
Old October 25th 03 posted to sci.physics
jmfbahciv@aol.com
external usenet poster
 
Posts: 7,899
Default Right hand rule

In article ,
"David Moran" wrote:
snip

I'm not a Crip. I can walk, talk, etc. just like
everyone else can with some difficulty.


Aw, rats. If you got around in a wheelchair you could have
drawn arrows on the armrest. What do carry around with
you all the time (so you don't have to remember to have it
with you when going to class). The most reliable method would
be to become adept at making one on demand. I did that with my
angle tables; I could never remember values of pi/2 and square
roots, etc.


..I just need a few accomodations for my classes and exams (I am a
meteorology major).



Sounds like a good question to ask the physics prof. If it's a
beginner class, I bet half the class don't understand.

/BAH

Subtract a hundred and four for e-mail.
  #13  
Old October 25th 03 posted to sci.physics
David Moran
external usenet poster
 
Posts: 68
Default Right hand rule


"Ed Keane III" wrote in message
m...

"Edward Green" wrote in message
om...
"Tom Potter" wrote in message

...

"Sam Wormley" wrote in message
...
David Moran wrote:

Hi,

I am a physics student with a physical disability that limits

my
motor
skills. I am wondering if there are any alternatives to the right

hand
rule.
I understand the the principle, but my motor skills make it

difficult to
carry out. Any help would be appreciated..

Too bad you can't just visualize the right hand rule outcome with

your
brain...
Too bad, indeed! Reminds me of space**** and tj...


I had my suspicions about this post too. A motor disabled physics
student should be able to find some work-around -- if he/she has any
hope of using physics in the first place. Of course the chance that
the question is sincere places a large negative weight on voicing this
horrible suspicion of being put upon.


I have read about the Crips and understand that you should
not mess with them. I believe that one could take advantage
of CPT symmetry and work something out with the left hand.

I'm not a Crip. I can walk, talk, etc. just like everyone else can with some
difficulty. I just need a few accomodations for my classes and exams (I am a
meteorology major).




  #14  
Old October 25th 03 posted to sci.physics
Uncle Al
external usenet poster
 
Posts: 17,007
Default Right hand rule

David Moran wrote:

Hi,

I am a physics student with a physical disability that limits my motor
skills. I am wondering if there are any alternatives to the right hand rule.
I understand the the principle, but my motor skills make it difficult to
carry out. Any help would be appreciated..


Visualize it in your head. If you cannot do that, become a psych
major. A cerebrally dysfunctional psychologist is "creative," and a
crippled one is guaranteed any job requested. Declare homosexuality
plus drug addiction and you have it all.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net!
  #15  
Old October 25th 03 posted to sci.physics
Ed Keane III
external usenet poster
 
Posts: 50
Default Right hand rule


"David Moran" wrote in message
...

" I'm not a Crip. I can walk, talk, etc. just like everyone else can with

some
difficulty. I just need a few accomodations for my classes and exams (I am

a
meteorology major).


Get a large nut and bolt. I think that actually illustrates the concept
better than a hand.


  #16  
Old October 26th 03 posted to sci.physics
Double-A
external usenet poster
 
Posts: 1,658
Default Right hand rule

"David Moran" wrote in message ...
"Ed Keane III" wrote in message
m...

"Edward Green" wrote in message
om...
"Tom Potter" wrote in message

...

"Sam Wormley" wrote in message
...
David Moran wrote:

Hi,

I am a physics student with a physical disability that limits

my
motor
skills. I am wondering if there are any alternatives to the right

hand
rule.
I understand the the principle, but my motor skills make it

difficult to
carry out. Any help would be appreciated..

Too bad you can't just visualize the right hand rule outcome with

your
brain...
Too bad, indeed! Reminds me of space**** and tj...

I had my suspicions about this post too. A motor disabled physics
student should be able to find some work-around -- if he/she has any
hope of using physics in the first place. Of course the chance that
the question is sincere places a large negative weight on voicing this
horrible suspicion of being put upon.


I have read about the Crips and understand that you should
not mess with them. I believe that one could take advantage
of CPT symmetry and work something out with the left hand.

I'm not a Crip. I can walk, talk, etc. just like everyone else can with some
difficulty. I just need a few accomodations for my classes and exams (I am a
meteorology major).




There is always the right foot rule.

Double-A
  #17  
Old October 26th 03 posted to sci.physics
Edward Green
external usenet poster
 
Posts: 931
Default Right hand rule

"David Moran" wrote in message ...

I'm not a Crip. I can walk, talk, etc. just like everyone else can with some
difficulty. I just need a few accomodations for my classes and exams (I am a
meteorology major).


In a recent thread a regular poster expresses his surprise that his
ten year old daughter has trouble telling right from left; i.e., he
has trouble imagining this. I have similar trouble imagining that, if
you can at least hold your right hand in front of your eyes, that you
cannot imagine what would happen if you closed your fingers, the the
relation of this movement to your outstretched thumb.

I'm not saying I don't believe that difficulty with the fine motor
actions might make it difficult to relate this now imaginary motion
with imaginary objects -- I'm just saying I have difficulty
understanding it.

My "right arm rule" was a serious suggestion -- it would work the same
as a hand, if you don't mind flailing your arm around.
  #18  
Old October 26th 03 posted to sci.physics
David Moran
external usenet poster
 
Posts: 68
Default Right hand rule


"Edward Green" wrote in message
om...
"David Moran" wrote in message

...

I'm not a Crip. I can walk, talk, etc. just like everyone else can with

some
difficulty. I just need a few accomodations for my classes and exams (I

am a
meteorology major).


In a recent thread a regular poster expresses his surprise that his
ten year old daughter has trouble telling right from left; i.e., he
has trouble imagining this. I have similar trouble imagining that, if
you can at least hold your right hand in front of your eyes, that you
cannot imagine what would happen if you closed your fingers, the the
relation of this movement to your outstretched thumb.

I'm not saying I don't believe that difficulty with the fine motor
actions might make it difficult to relate this now imaginary motion
with imaginary objects -- I'm just saying I have difficulty
understanding it.

My "right arm rule" was a serious suggestion -- it would work the same
as a hand, if you don't mind flailing your arm around.

Hey, whatever works!!

David


  #19  
Old October 26th 03 posted to sci.physics
Starblade Darksquall
external usenet poster
 
Posts: 943
Default Right hand rule

"David Moran" wrote in message ...
Hi,

I am a physics student with a physical disability that limits my motor
skills. I am wondering if there are any alternatives to the right hand rule.
I understand the the principle, but my motor skills make it difficult to
carry out. Any help would be appreciated..

Thanks.

David Moran


They call it that because of you look at a righthanded screw from the
top, and you screw it clockwise then it proceeds in a certain
direction. I guess if you make the x axis up and the y axis to the
right, then z would be the in axis. Or maybe the x axis is to the
right and the y axis is up and you just turn it clockwise. I don't
know why they make counterclockwise the direction from the x axis to
the y axis. They just do.

(...Starblade Riven Darksquall...)
  #20  
Old October 26th 03 posted to sci.physics
Starblade Darksquall
external usenet poster
 
Posts: 943
Default Right hand rule

Uncle Al wrote in message ...
David Moran wrote:

Hi,

I am a physics student with a physical disability that limits my motor
skills. I am wondering if there are any alternatives to the right hand rule.
I understand the the principle, but my motor skills make it difficult to
carry out. Any help would be appreciated..


Visualize it in your head. If you cannot do that, become a psych
major. A cerebrally dysfunctional psychologist is "creative," and a
crippled one is guaranteed any job requested. Declare homosexuality
plus drug addiction and you have it all.


Actually, you can't get jobs if you do drugs. However, if you had a
drug addiction in the past and are in a support group then you will
get lots of hugs and stuff and everybody will admire you like you're
some kind of celebrity. In fact, most celebrities do drugs and then
quit just so they can get this kind of attention.

Also, homosexuality is still against social norms for some people. And
people who have disabilities of some sort actually have it HARDER!

Once again, your stupidity has killed us all. - Quote from... uh... I
forget. I think it was Space Ghost Coast To Coast. Or maybe Sea Lab
2021.

(...Starblade Riven Darksquall...)
 




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