Do Space Aliens really exist?

Glaucus said:
It does explain why, rather than going we can't know anything. Perhaps read some books. You can't get energy from nothing, so if all energy is going into speed, you have a max speed. Everything we know backs this up.
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Don't get me wrong. I'm not saying we should stop trying to find out things. But for me current theories are severely lacking in any real explanatory power.
 
danlightbulb said:
But for me current theories are severely lacking in any real explanatory power.
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What do you mean by that though, so far, Einstein's theory of relativity is the closest thing we have to explaining the laws of physics, and it works as well. If you're talking about the quantum world then yes, you have a point, hopefully the LHC will be able to shed some light on this. We're always finding things out about the universe but were nearly all there, unless we find a specific heavy particle or something that rips up the rule book, the theory of relativity will stand the test of time, like it has done in the last 100 years.
 
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This was a great documentary if you can get your hands on it - http://www.bbc.co.uk/programmes/b00wltbk

Something I had never thought about before and I think is part of the Fermi Paradox, is that if there was other intelligent life in our Galaxy/Universe that could travel huge distances then it happened at a completely different time than other intelligent life.
I suppose it's a bit like Earth, humans never knew dinosaurs and dinosaurs never knew other forms of life and so on because of the time involved.
 
All fascinating stuff guys but you all forget one thing?

Time does not exist! :eek:

We as humans invented time to get about in our daily lives.

But in essence time has no meaning, its just something we can accept in our minds to get stuff done. ;)

Imagine a race of beings where the is no time or no meaning of time! :eek:
 
itchy said:
All fascinating stuff guys but you all forget one thing?

Time does not exist! :eek:

We as humans invented time to get about in our daily lives.

But in essence time has no meaning, its just something we can accept in our minds to get stuff done. ;)

Imagine a race of beings where the is no time or no meaning of time! :eek:
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no time still exists just different units.
Space time would still exist along with the basics of physics.

you wouldn't have aliens suddenly going different directions in space time.

time is very much part of the universe.
 
Glaucus said:
no time still exists just different units.
Space time would still exist along with the basics of physics.

you wouldn't have aliens suddenly going different directions in space time.

time is very much part of the universe.
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But you cannot define time it is only a humans perception of time.

Time does not exist we invented a measurement to pass the days, months, years and so on.

Time is not real, mavity/mass, the universe, and atoms are real. But time is not hence the problems with quantum physics and string theory.

Strange stuff that's for sure. :confused:
 
well it is real, time always goes forward in the universe, its parts of special relativity.
its just relative.
we use it every day, otherwise gps wouldn't work, it is more than a made up number.
it always moves forward, the interesting bit is we don't know why it always moves forward, as the maths says it shouldn't matter.
 
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Glaucus said:
well it is real, time always goes forward in the universe, its parts of special relativity.
its just relative.
we use it every day, otherwise gps wouldn't work, it is more than a made up number.
it always moves forward, the interesting bit is we don't know why it always moves forward, as the maths says it shouldn't matter.
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Its not a made up number from our perspective as we can measure it.

But in reality the is no time, what was before the big bang ? No time!

What was before space in which the big bang occurred?

See how time fails when you go too far with conceptions of time. ;)

ON TOPIC......

The is probably bloody billions of aliens. :eek:
 
that's exactly what the model is,
big bang came from no energy and will return to no energy. That's not some break through

and actually with the LHC we are further from a break through than before, as all it done is confirm the standard model and discredited other theories like numerous string theories.
 
itchy said:
Its not a made up number from our perspective as we can measure it.

But in reality the is no time, what was before the big bang ? No time!

What was before space in which the big bang occurred?

See how time fails when you go too far with conceptions of time. ;)

ON TOPIC......

The is probably bloody billions of aliens. :eek:
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how ever before then there was no matter or energy, so by your reasoning neither of those exist either.

the universe runs forward in one direction, therefore time exists, its just not exactly as most people perceive time. therefore aliens would have a concept of time and would use it.
 
itchy said:
Time does not exist! :eek:
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Time does exist i'm afraid, it's woven into the fabric of space. Always going forward, never stopping for anyone or anything.

We just call it time, we could have called it anything else and it would still represent the same thing.
 
Trusty said:
Time does exist i'm afraid, it's woven into the fabric of space. Always going forward, never stopping for anyone or anything.

We just call it time, we could have called it anything else and it would still represent the same thing.
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Not it does not.

Time is ones own measurement, perception and velocity in space.

Is time the same for a house fly?

Is time the same for a fruit fly?

Is time the same for a elephant?

No, time is a thing we and every creature on the planet endure as we have life and death.

So for beings that die time is relevant, what about beings that don't die what would be there perception of time? Irrelevant would be my best guess. ;)

As for stars exploding etc do they not create new stars and planets etc.

The is a pattern if you remove time. (I think !) :confused:
 
but objects don't experience mavity all the same wa, we all have different masses and thus mavity. So in your vie mavity doesn't exist. you can change how the underlying physics works, but its still mavity regardless of what the final equation is.

time doesn't apply to just living creatures and not every object needs to feel it in the same way.

when's the last time you saw a sun dissolve and go back to a planetary disk of hydrogen. yes stars explode and create heavier elements, but when has a star ever randomly reversed direction and started splitting atoms apart to go back to the cloud of hydrogen.

when did you see radio active decay, change direction and become radioactive birth.

There is a universal direction to the universe, some physicts try to call it something else, but that direction is perfectly fine to call it time.

I'm pretty sure you read the thing where one describes it as a series of moments, but it makes no sense. you don't randomly jump from one moment to another, you aren't 15 years old, then the next moment you could be being born.
 
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Trusty said:
What do you mean by that though, so far, Einstein's theory of relativity is the closest thing we have to explaining the laws of physics, and it works as well. If you're talking about the quantum world then yes, you have a point, hopefully the LHC will be able to shed some light on this. We're always finding things out about the universe but were nearly all there, unless we find a specific heavy particle or something that rips up the rule book, the theory of relativity will stand the test of time, like it has done in the last 100 years.
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Yes I was more referring to the quantum world. We keep getting smaller and smaller until we find...what?

I am particularly interested in how force is physically transmitted. Take mavity, an attraction of masses visuallised by deformations in spacetime. But what is spacetime? Its those additional dimensions that we cannot interact with at all which facinate me. Somehow we need to find a way to interact with those dimensions, to take a leap forward.
 
Glaucus said:
but objects don't experience mavity all the same wa, we all have different masses and thus mavity. So in your vie mavity doesn't exist. you can change how the underlying physics works, but its still mavity regardless of what the final equation is.

time doesn't apply to just living creatures and not every object needs to feel it in the same way.

when's the last time you saw a sun dissolve and go back to a planetary disk of hydrogen. yes stars explode and create heavier elements, but when has a star ever randomly reversed direction and started splitting atoms apart to go back to the cloud of hydrogen.

when did you see radio active decay, change direction and become radioactive birth.

There is a universal direction to the universe, some physicts try to call it something else, but that direction is perfectly fine to call it time.

I'm pretty sure you read the thing where one describes it as a series of moments, but it makes no sense. you don't randomly jump from one moment to another, you aren't 15 years old, then the next moment you could be being born.
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What happens to time in a black hole?

What happens to time within a black hole if it expires?

If real time was a clock the would be no fingers. ;)

mavity is a universal constant with no interest at all in time.

It can bend time but that is only the perception of the observer so its not an actual thing per say.
 
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