Light Speed and a few questions

[asena]

1-)why is existing more matter then anti-matter in universe?
2-)we can't reach to light speed(with acceleration)
ok
but if a train,somehow,reach to half speed of light,and another train is doing the same,if they are at opposite direction,how does a person at one of the trains see the other train?
3-)why do you think S.H. is insisting on 11 parallel universe?But not 13 or 5?

[Torcoman]

2-)we can't reach to light speed(with acceleration)
ok
but if a train,somehow,reach to half speed of light,and another train is doing the same,if they are at opposite direction,how does a person at one of the trains see the other train?


we may see the opposite train as a light speed.
(but of course our eyes is not created for catching light speed scenes.
anyway, we may see this train clearly as it's wide, but of course this train must be have in a 3 x 100.000.000 km lenght ,for to see it at least 10 second time)

[asena]

we may see the opposite train as a light speed.
(but of course our eyes is not created for catching light speed scenes.
anyway, we may see this train clearly as it's wide, but of course this train must be have in a 3 x 100.000.000 km lenght ,for to see it at least 10 second time)

Thanks for the interest
buti don't think so.I think relative speed is for low speeds.
Even if it is,theorically we shouldn't see anything,we should see as if nothing is passing.We should see the other train as transparant(but maybe i am wrong)
That's why i wanted to discuss
what tehnic should be used for this high values?