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Carsten Burgard 2012-08-05 12:29:26 +02:00
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readmore/the_electromagnetic_interaction.html
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@ -2,11 +2,13 @@
that it is made of a proton with electric charge +1 and an electron
with charge -1. Particles with opposite electric charge attract each
other just like magnets. This is an example of the electromagnetic
force, or “the electromagnetic interaction”. </p> What is interaction?
force, or "the electromagnetic interaction".
<h2>What is interaction?</h2>
<p>How do the proton and the electron know about each other? How do
they “interact”, and what do we mean by “interaction”? Particles
they "interact", and what do we mean by “interaction”? Particles
interact with each other by exchanging other particles. How does this
work?</p>
@ -23,7 +25,7 @@ receive the tools momentum, carrying him in the direction of
flight. What happened? The two astronauts are now floating away from
each other, whereas they were approaching each other before. They
exchanged a tool, and transmitted momentum from one another, a process
particle physicists call “scattering”. Sadly, this example only works
particle physicists call "scattering". Sadly, this example only works
for a repelling interaction. However, there is a similar example, that
also works for an attractive interaction, which is a little more
complicated.</p>
@ -101,10 +103,10 @@ called fermions (all particles with half-integer spin are fermions).</p>
Like all other bosons, photons can - given that sufficient energy is
<p>Like all other bosons, photons can - given that sufficient energy is
available - be produced out of nowhere and can also vanish into
nothingness, leaving behind nothing but energy. Therefore, the
electrons and protons in the atoms - as oppo<p>sed to the persons in
electrons and protons in the atoms - as opposed to the persons in
the boats we used as an analogy earlier - do not need to carry around
their messengers (in our case photons), as they can simply be produced
by all particles that carry charge. </p>
@ -112,7 +114,7 @@ by all particles that carry charge. </p>
<h2>Outlook</h2>
<p>The exchange of photons between particles is what we call
“electromagnetic interaction”, The photon can create either attraction
"electromagnetic interaction", The photon can create either attraction
or repulsion between particles and transport momentum as well as
energy. Now we know what binds together the electron and the nucleus
to form atoms, such as the Hydrogen atom or the Helium atom that we