"CFran" wrote in message ups.com...
If I got it right, the faster you go, the slower time goes for you.

No, that is wrong. You notice nothing about time.

The faster you go with respect to someone, the longer the time
that person will measure between two ticks on *your* clock,
and likewise, the longer the time *you* will measure between
two ticks on that *person's* clock.


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?

See above.

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).

You have zero speed with respect to yourself. You are
the 'referential' of everything you measure. Your navel is
the centre of the Universe that you measure ;-)
So, of all the clocks you shoot away at in various directions
with various velocities with respect to you, the time between
two ticks on any of these clocks as measured by you, will
be longer than the time measured between two ticks on your
own clock, which goes as speed zero.
So, sloppily expressed, your clock will be the "fastest".


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.

You can shoot two objects at say 0.8 c in two opposite
directions. Then according to you, the distance between the
objects will increase at a rate of 1.6 c, but according to some
people riding along with one of the objects, the other object
will recede at a velocity of (0.8+0.8)/(1+0.8^2) c, which is,
as you can verify, smaller than 1.
No object, as measured by yourself, can travel at a speed
that is greater than c.


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

Yes, we know :-)

Dirk Vdm