Long, long, long ago, Have I already said
long ?
Neh!
It was believed that electricity and magnetism
were 2 completely independent things, unrelated.
However, over time several scientists
Such as Faraday, Gauss, Ampere and even Maxwell
were
able to bring us closer to the truth, to an
almost magical fact, to one of the fundamental
forces of the universe
And ¿Which one is this?
THE ELECTROMAGNETISM
But ¿what is that?
simple, the theory of electromagnetism is
a unifying theory, this means that
The electric charges, which interact in the
electric field, tell us where and how strong
the charges are going to be pushed, and the
magnets, which interact in the magnetic field,
tells us where and how strong a magnet will
be oriented, both fields are necessary to
create each other an electromagnetic
field.
This field is the medium in which, charges
and magnets can be attracted, repelled or
rotated.
All these interactions are represented by
Maxwell's equations, which tell us how charges
and magnets disturb the field and this to
itself.
Currently we can write them in 4.
The electromagnetic waves produced thanks
to these interactions are classified according
to their frequency, but ¿what is a frequency?
It is only the number of oscillations that
are given per second.
The low frequency waves are those of radio
or microwaves while those of high frequency
are the ultraviolet, x-rays or gamma rays
The magnificent fact of achieving this, allows
us to use and have different things like:
cell phones, tv’s, radios and even the way
how you get all these things, that are the credit cards
But there is something really important
The Microwave.
Imagine that you are about to see a very cool
movie but you are missing an element, very
important, what is missing?
Company ?, Nah, why do you want company if
you can have: POP CORN.
So to make things easier you go and put them
in the microwave.
It's that simple
¿Which relation have the electromagnetism
with all this?!
You just want your popcorn and that's that’s
all ¿Right?!
Look, when you put your popcorn in the microwave
and you give the power button happens what
we've been talking about all this time.
The pop corn has polar molecules, which having
both poles, positive and negative, are like
small magnets.
And when the process starts, electromagnetic
waves of approximately 2.5 GHz are sent, what
happens is madness.
The molecules try to align themselves to the
electromagnetic waves, but these oscillate
to approximately 2,5 Ghz that is 2,500 million
times per second.
In other words, there are millions of molecules
trying to align themselves to waves that oscillate
2,500 million times per second.
All this madness that occurs is heat, which
would be like a massive excitement.
Well, thanks to the ability of the electromagnetic
waves to make the polar molecules get nervous,
we were able to get our pop corn.
So ¿what are we expecting now?
Let’s see the movie!
Bye
