Recent content by Poita

Thank's Vanesch, your answer helps me conceptualise more. Well Claude, sometimes I think existential meandering for its own sake is a waste of time. My question is some what existential but in a naturaly curious way and for a reason. I think that being existential for its own sake and even...

So my earlier question about whether it was speed or acceleration that affects time is answered? So acceleration affects time and not speed? does decelleration affect time too and in the same way or conversely? It's interesting that there is no absolute definition of movement but there is...

you guys keep missing my point. I'm not asking how each views each others time and speed while they are on the journey. If each fly in opposite directins away from each other then turn around and come back then they have both traveled the exact same distance and speed etc. I don't want to know...

Once all the clocks that have left Earth return to Earth then they can compare themselfs with the clock on earth. It doesn't actually matter if the Earth clock is or isn't a universal standard as the purpose of the comparison of the two clocls that left Earth and returned is to see how they...

Well, when they meet again and compare atomic clocks or whatever then as Mother Earth was the starting point they will use Earth time as the base and compare everything to that. so the Earth clock will say one year has passed adn the brother in the space ship's clock will show one month to have...

This is what I'm unsure about. I already guessed that there is no such thing as absolute stillness and therefore movement itself is one big relative. So in a sense you never move you just alter your position in relation to the position of other things. If all that is relative then how come...

We laymen know that high speed travel has an effect on the local time of the traveller. What exactly is it about the speed that does it though? I heard that it is not the actual high speed but the acceleration and deceleration that has the effect. That would mean that it is the change in speed...

I have three questions. 1. Why are galaxies disk shaped and not spherical? 2. Theoretically speaking, if there were a hollow sphere at the exact center of the Earth and you were in it then what would you feel from a gravitational point of view? Would you hover and be able to bounce from...

I do realize that my question was metaphysical or philosophical or whatever you want to term it. I also realize that with some illusions it doesn't really matter whether it's an illusian or not and just the end effect is all that is really important. I was just trying to get at the laymans...

I'm pretty much physics illiterate so please bear with my simplistic metaphors and characterisations of physics principles in this question. It is said that there are two states, matter and energy. Well, my question is this. Does matter actualy exist? Surounding every atom is an electro...