does time exist

[steg]

i was wondering if anybody had read a book called "does time exist" by Henri Salles and if so is it easy to understand, i think alot about stuff like this,and have my owne theories in my head, but i am not very well educated so when i read some books i find it hard to understand what they are saying.

thanx S

[loudickson71]

not as such.

spacetime does exist, it is actually out there, and 'explains' 4 dimensions, although there are probably 7 more. Spacetime is not a feature of reality as such, it was created because of the way the big bang occurred.

u can make false assumptions about time.

eg. it is absolute. it is not.

eg. it is a 'sheet' of the present passing from the past into the future. not necessarily.

eg. it exists truly in the present. the past and future may be just as valid as the present, and u exist there just as much as u do here.

eg the present is where the choice is made what path to take out of all possible futures, u make one, and the future path is chosen. not necessarily, all paths could be chosen, u just happen to be experiencing this one right here, your other self is experiencing all of the other options in other universes.

sorry to fk with your head so early in the day.

[steg]

lou would you say that time is constant whare ever you may be in the universe( or could it pass at say different speeds depending on whare you were)

[loudickson71]

It has to pass at different relative speeds depending on what speed you were doing. Time cannot exist independently of space. And you are a material being in space.

"Space tells matter how to move. Matter tells space how to curve."

[steg]

ive heard people say that there is no proof that the big bang ever happened, and that it is only a theory needed to explain a start to the universe

[loudickson71]

they're wrong, IMHO. The glow of the aftermath of the big bang is all around us, and we have definitive evidence that everything is moving away from each other at an accelerating rate=it must have been together at some time in the past. If I find a balloon in the street, I might conclude that a piece of rubber magically appeared filled with air. Very believable. If someone suggested that a balloon was there and someone blew into it and tied the end up and left it there, who would you believe?

[steg]

but sometimes the most obvious is not always correct

if everything is moving away from each other why do galixies colide some must travel towards others for this to happen.

is what we would call space forming from a center point(big bang area) and expanding or is matter just moving outward

(sorry i dont have people that i can talk to about these things so i am finding it hard to transfer what is in my head into words so my questions may sound a bit stupid)

[mibn2cweus]

Stupid is not the same as ignorance.  Stupid is being to afraid to ask the questionand denying your thirst for knowledge or refusing to act the way you know is right in the context of what knowledge you do have.

[mibn2cweus]

...or believing that you know everything already.  You are none of these.

[fantastical]

Because there are gravitational forces acting upon all bodies of matter (ie. planets, starts, etc) in space coming from all other bodies of matter. Take our galaxy for example, it itself is immensly huge (150 light years across, with close to 200,000 different stars), and is constructed in spiraled "arms." Our solar system is located on the outer edge of on of these arms, and is osscilating back and forth across the central tendency (imagine the arm as a cone with a rod down the middle). This center point is arbitrary, but is what all the matter is revolving around in this spiraled arm of the Milky Way. It takes something like 80 million years for our solar system to make one complete journey across the arm and back.

So relatively everything else. And...things move faster (stronger graviational pull) when they are nearer the center of the spiraled arm. More matter gets pulled to the center, moves faster, and thus more chaotic in this area than where we are now, which is on the outer edge of this arm. More stuff moving around at a faster rate implies more stuff will bang into each other. That's when matter within a galaxy can bang into each other...comets into planets, asteroids into moons, stars into stars (forming a binary star, perhaps), and etc.do galaxies hit other galaxies? - I'm not entirely sure.

[CT]

Fantastical, just to say, your numbers for our galaxy are on the small side. :-)
The milky way is approx. 100,000 light years across and contains approx. 200,000,000,000 stars. Don't quote me on those figures. I've not had time to count them all.

[mibn2cweus]

Time is absolute in an isolated system, (i.e., no relative motion), as a measure of the interval between two events. You may need to take into account any new influences.

[mibn2cweus]

I believe galaxies came pass through each other relatively unaffected do to the spacing of matter within.

[steg]

thanx for that mibn,

fanatical i think i seen pictures from the hubble telescope of galaxies colliding

[steg]

sorry fantastical

[boobesque]

can i just point out that the big bang didnt actually happen. at the beginning of time there was nothing. hard to imagine but nothing existed. without a medium for sound to travel through you would have no big bang. i refer to it as the primordial expansion.

[steg]

thanx for that Boobesque i will ponnder on that over the weekend

[mibn2cweus]

But we can here its echo today!

[bernardo]

Yes, time does exist.  It's about half past one.

[bernardo]

Hello?  Is there an echo in here?  I only wrote that once.  Maybe it fell through a wormhole in the space-time continuum and met itself on the way back.