CFran wrote:
If I got it right, the faster you go, the slower time goes for you.

No... both twins see each and every film frame shown
on a commonly viewed movie screen.


But there's something that seems weird to me, if this is true (I don't
doubt it is), then there must be a referential, I mean, there must be a
certain speed and direction in the universe which makes time go the
fastest, in other words, "if you go faster time goes slower for you",
faster compared to what?

Is there something like a speed zero, where time goes the fastest?
Because, as I understand it, it seems that if you throw a whole lots of
probes in various directions and at various speeds, there will be one
that will have it's clock running faster than the others, and it will
be the one going the slowest (compared to a referential, well I guess).

Same for the speed limit in the universe, nothing can go faster than c,
ok, but, compared to what referential? I mean, if you throw a whole lot
of probes at the same time from one unique moving point in any
direction at speed c (or close), where will be the middle between all
these probes. If you are going at half of c (once again, compared to
what, yeah i'm very confused with that) and throw a rocket that can get
near c in the direction you're going, and another one like this in the
opposite direction, the middle between those two rockets wont be you,
or one rocket would go at 1.5 c.

And please explain things simply, you all know how hard it can be to
understand/admitt all those weird relativity things, thanks.

Yes... 'compared to what' is the correct question.
The motion of a charge (electron proton ect) relative
to another nearby charge produces forces and involves
energy exchange. The use of an artificial time scale
for the region is helpful to account for the energy.
That mathematics is the product of relativity theories.

Regards,

Sue...

http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm
http://arxiv.org/abs/physics/0204034
http://farside.ph.utexas.edu/teachin...es/node13.html