Re: layman: general interest in physics, relativity and quantum mechanics
- From: "Sue..." <suzysewnshow@xxxxxxxxxxxx>
- Date: 11 Mar 2006 05:31:31 -0800
Peter wrote:
Hi,
First, I am new to newsgroups, so please give me a bit credit when i do
things wrong...
Second, I am (as the subject says) generally interested in both classical
and modern physics. But it has been a couple of years ago since i was in
high school, and even there I was at the time more interested in other
things than math and physics.
But now, after reading a few books like 'The elegant universe' and 'The
fabric of the cosmos...' I am starting to become fascinated by it.
I was wondering if there are people here who are at the same 'level' as me,
and feel like beginning a correspondence or something to help eachother and
find out more?
Maybe it is an idea to start a study/discussion group?
Anyways... just drop a note if this sounds interesting
"Two heads think better than one"
Peter
Feel the heft of a paper weight as you stand in one
place and watch a clock. Continue watching
the clock and notice the force of the weight
on you hand as you carry it across the room
then return to your original position.
You probably know the paper-weight in not really
"touching" your hand. Electrons in your hand
are repelling electrons in the paper-weight
and a change (impulse) in that force moves at the
speed of light.
For your trip across the room, there was a
relation between the clock (a temporl co ordinate)
and your position (a spatial co ordinate)
Now consider all possible temporal and
spatial displacements (trajectories) for which the force
of the electrons in the weight against
your hand does not change.
You can do it with these tools:
"Retarded potential"
http://farside.ph.utexas.edu/teaching/em/lectures/node50.html
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm
....based on Maxwell's descritpion of the "fabric of the universe"
Sue...
.
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