I want your opions/awnsers

[samm291]

1. How is there nothing outside the universe but the universe is always expanding
(so if i went to the end of the universe would i hit a brick wall probly not so what is out there space mabey or ...)
2. If we could drill a whole threw the earth A/ and we put a heat and melting proof tube and we dropped an apple would it go to the other side or hover in the middle B/ simalure to A if there was no tube would the lava just fill it in?

now if these puzzeles were hard thats because there is no right answers now this doesnt mean there are wrong answers please right what you think

[Stronk Serb]

My theory is: there are multiple universes which are exoanding, when they touch, they merge. It is possible to travel to other universes but you need to navigate the interspace expanse.

[Broken Toy]

The universe is the universe, it is multi dimensional so there is not edge. To move across the universe is the same as driving across the earth, there is no edge because you will just keep going. When the universe is expanding you have to remember it is not only in 2 dimensions, but all dimensions, so the ball that is the universe is growing.

If you managed to make a heat proof tube then dropped an apple it would just float at the centre because the gravity would be so strong that it would overpower any speed gained from gravity on the way down

[Body odah Man]

I barely understand basic physics let alone galatical travel and space time continuum stuff. I really can't provide you with a answer, sorry

[ndrwmxwll]

the universe is by definition all that exists. nobody really knows for sure if the universe is finite or infinite in size (both have their logical problems so no point going there), but if it were finite with an 'end' id imagine itd be similar to crossing over the event horizon of a black hole -- but thats just my guess.

the apple would go to the other side of the planet, reach a complete stop right at the exit, fall back down and repeat that process until somebody grabbed it.
it would not be possible to just drill a hole through the center of the earth without a tube cuz lava, rocks, earth, etc would collapse into it

[Broken Toy]

the universe is by definition all that exists. nobody really knows for sure if the universe is finite or infinite in size (both have their logical problems so no point going there), but if it were finite with an 'end' id imagine itd be similar to crossing over the event horizon of a black hole -- but thats just my guess.

the apple would go to the other side of the planet, reach a complete stop right at the exit, fall back down and repeat that process until somebody grabbed it.
it would not be possible to just drill a hole through the center of the earth without a tube cuz lava, rocks, earth, etc would collapse into it

But even if the universe is finite it is not simply 3 dimensional, but all dimensions. This means there is no end, you would just loop around, much like travelling across the face of the earth. What do you think to that?

[ndrwmxwll]

This means there is no end, you would just loop around, much like travelling across the face of the earth. What do you think to that?

i dont comprehend dimensions but if theres no end, its not finite

[dxcxdzv]

the universe is by definition all that exists. nobody really knows for sure if the universe is finite or infinite in size (both have their logical problems so no point going there), but if it were finite with an 'end' id imagine itd be similar to crossing over the event horizon of a black hole -- but thats just my guess.
It depends of the definition you give to "Universe". The Universe with a U is the whole area with the same physics laws that where we are, from so far we know the Universe is finite, or I should say "is not infinite". It's expanding since the Big Bang, nowadays we consider that what is beyond our Universe, so what is beyond the zone which has the physics laws we know, is unknown.
In the case our Universe is finite, what is technically beyond is the "quantum gap". In the theory of Multi-Universes it's a gap between each Universe where the physics laws we know doesn't exist.
At the time we are, imagining what is beyond the Universe is pretty much impossible, because it manages with our whole concept of the Existence.
May be one day, if Mankind become a type IV civilization or more, we will know.

Broken Toy : Don't fool yourself (I don't know if it's the correct term, sorry in advance), when you hear that the Universe has more than 3 dimensions it means more than 3 variables. For exemple the fourth is the time. Speaking of "parameters" will be more correct.
Edit : Well for the multiple dimensions, according to the String Theory there is more than 3 spatial dimensions but it doesn't mean they are "dimensions" in the way you're saying.

[Broken Toy]

i dont comprehend dimensions but if theres no end, its not finite

Naaa i mean like compare it to the earth, but with more dimensions. There is no end to the earth, but, since it is 3d you can go up to get away. It is finite but there is not end, you just come around again.

I think that would be the universe, you go so far and would end up returning to the beginning. The easiest way to look at the universe is to come up with a basic theory, then alter it based on the other facts and theories. It is too big to comprehend in one go

Reise. I get that, but the fact is if you follow the idea that the universe is all that is, and there is no way out, then the difference in comparison to other objects becomes relevant.

I think it as an earth, but you cannot fly out, you would just loop around, much like flying across the face of the earth.

The universe is expanding, as shown by red shift, so i then imagine that to be happening the same way as a dying star. The universe is a sphere that is pushing out on all sides, creating new space in which new objects are made.

Double post has been merged. ~R.D.

[ndrwmxwll]

Naaa i mean like compare it to the earth, but with more dimensions. There is no end to the earth, but, since it is 3d you can go up to get away. It is finite but there is not end, you just come around again.

is it wrong to conceive of a spheroid object 'ending' at its circumference? :what:

[Miserabilia]

For the first one I'd say that the universe is just a collection of energy/matter whatever, spacetime is the grid on which those exist. First of all we don't know what's outside the part of the universe we can observe, which is only a fraction of the entire size as we can only estimate it. If you were to reach the edge there would simply be no matter and energy from that point, but you could still go in there; the same way stars are moving beyond the current edges as I'm writing this since the universe is expanding.
I think the problem with the question is that you're assuming the edge of the universe is actualy where the universe ends, the edge of the universe is just where there is no matter or energy yet. I guess you should see it as ants on a piece of paper, where the ants will find the edge of the paper but still have only walked on a flat plane and can not go above the piece of paper.

[Bleid]

1. How is there nothing outside the universe but the universe is always expanding

The scientific reason for this is because there is nothing present outside of the universe because light has not yet reached there, yet. Light is continually moving, along with everything else in the universe (according to the Big Bang theory).

(so if i went to the end of the universe would i hit a brick wall probly not so what is out there space mabey or ...)

There's a catch, here. It's not physically possible to reach the end of the universe, because it is not possible to exceed the speed of light. Speed of light will always beat you out and surpass you, and hence, the universe itself will expand yet again. It reminds me a bit of the amusing Achilles and the Tortoise story (https://en.wikipedia.org/wiki/Zeno%27s_paradoxes#Achilles_and_the_tortoise).

2. If we could drill a whole threw the earth A/ and we put a heat and melting proof tube and we dropped an apple would it go to the other side or hover in the middle B/ simalure to A if there was no tube would the lava just fill it in?
If you drilled DIRECTLY through the center of the earth, you'd end up cutting through the center and making it so there's no gravitational pull where you just cut. This means that the apple would still indeed move toward the center of the earth (because surrounding that center is still the largest pull), but upon approaching the center it would gravitate towards whichever part of the earth around it held the most mass (and consequently the largest gravitational pull).

To be honest, though, outside of the thought experiment nature of this, if we actually attempted this the tube would collapse even if we had enough materials to build it and enough man power. You have the entirety of the earth forcing itself down on the tube.

If the tube were to be removed (back in the hypothetical) then the surrounding earth would certainly force itself into the place where the tube was, because surrounding that empty space is a great deal of mass on just about all sides, and so it would gravitate together.

[ndrwmxwll]

Bleid
the only problem with the idea would be atmosphere (http://h2g2.com/edited_entry/A2960633) but that could be overcome

http://www.docstoc.com/docs/566538/Gravity-Train-Project
http://h2g2.com/edited_entry/A2960633

[Bleid]

Bleid
the only problem with the idea would be atmosphere (http://h2g2.com/edited_entry/A2960633) but that could be overcome

http://www.docstoc.com/docs/566538/Gravity-Train-Project
http://h2g2.com/edited_entry/A2960633

That'd be interesting, too - cutting through to the other side of the planet. Thanks for the link.

[Human]

1. How is there nothing outside the universe but the universe is always expanding
(so if i went to the end of the universe would i hit a brick wall probly not so what is out there space mabey or ...)
2. If we could drill a whole threw the earth A/ and we put a heat and melting proof tube and we dropped an apple would it go to the other side or hover in the middle B/ simalure to A if there was no tube would the lava just fill it in?

now if these puzzeles were hard thats because there is no right answers now this doesnt mean there are wrong answers please right what you think
1. I don't think anyone really knows, however people say it's like a balloon, it expands from the inside out kind of and everything else gets stretched out.
2. You would go through to the other side and then get sucked back in and come out again and so on

[mattsmith48]

1. The universe as no edge and it expand in the multiverse
2. it would stay at the middle because of gravity.

[random canadian]

You'd never be able to hit the edge of the universe anyway, because by the time we have the technology to reach it, it will be accelerating past light speed, if it the acceleration rate increases at same rate it does today

[thegreatgatz]

is it wrong to conceive of a spheroid object 'ending' at its circumference? :what:

Yes, because the circumference can be drawn anywhere on a sphere almost so long as It wraps around the sphere. I guess you're right, actually...

[StoppingTom]

A Googol (10^10^100) is greater than the observable number of atoms in the Universe (10^78 to 10^82) and the Googolplex Theory suggests if you travel one Googol across the Universe, that point will be an exact replicant of the origin point. Based on this theory, I'm lead to believe our observable Universe is basically just one pattern in an entire "quilt" of Universes, with duplicates existing outside the "boundaries" of ours.

[phuckphace]

I thought scientists have settled on the consensus that the Universe is expanding indefinitely, and will eventually end in heat death

[tovaris]

Acordin to most accepted theories in phisics, there is nothing outside the universe. If you were to somehow magicly transport yourself to the edge tho you would not hit a wall you would not even notice the edhe since space is curved. everething would seem like any other spot in space

tube thing... if you were to suck all the air out it would pop up at the other side, if not it would awentuly stop and hower at the center.

yes

[ndrwmxwll]

A Googol (10^10^100) is greater than the observable number of atoms in the Universe (10^78 to 10^82) and the Googolplex Theory suggests if you travel one Googol across the Universe, that point will be an exact replicant of the origin point. Based on this theory, I'm lead to believe our observable Universe is basically just one pattern in an entire "quilt" of Universes, with duplicates existing outside the "boundaries" of ours.

i thought of this as an alternative to multiverse theory, but wouldnt it break down once beings or objects traverse (or effect, even by light) from one replicated section to another? eventually the quilt of universes would be no more