yashsingh1/xdaforums huggingface dataset:
[Off-topic] huggs:
Okay, so I guess I'll kick off the physics, which surely will segue into the philosiphy part eventually.

What's everyone's thoughts on multiverse theories, concepts of infinite parallel universes as related to m-brane/string theory and such.

If there is the possibility of an infinite number of universes, then all possible combinations of all possible details must/should exist, thereby possibly diminishing our own 'uniqueness' a bit? How likely is the existence of parallel universes? Which theory is the soundest?

A good book to learn about most of the most credible multiverse theories is 'The Hidden Reality' by Brian Greene. He also has a pretty excellent book called 'The Elegant Universe' for anyone interested in a good read about theoretical/quantum physics. I'm a bit of an amateur physics nerd lol. (kinda a common trait of those with Aspergers syndrome)

Let the discussions begin!!
[Off-topic] 4silvertooth:
I think the string theory is good on paper but I am little skeptical about it being practical.

Though it solves some complex question about universe, I don't think we have a parallel universe.
[Off-topic] huggs:
Under certain theories, other universes don't even have to exist outside of the one we inhabit. If our universe is truly infinite (not really that likely tbh) then there are an infinite number of areas of this universe that are too far from one another to ever be affected by other areas (not even light ever reaching each other due to expansion of space itsself) so by that line of thinking, each of these 'separated areas' could be considered like their own 'bubble universe' and an infinite number of these would generate every possible combination of all possible details.

As far as whether string/m-theory are believable or likely to be correct, they are definitely not directly proveable or disproveable due to limitations of current technology to test on such small scales, but much of the substance of theories is indirectly confirmed through process of elimination with already hard-proven science.
[Off-topic] iynfynity:
I loved my Physics class when I was in high school, but that's about it. Nothing really special can be taught for a year and now I'm looking forward for my Physics class in college.
[Off-topic] Dirk:
There's lot's of us about it would seem. We tend to gravitate to the same interests. (Pardon the pun) :)

I'm not a big fan of String Theory and multiverses, but i am interested in what it has to say about the possibilities of hidden dimensions that we don't know about yet. Perhaps this line of research will answer some questions about the mystery of how gravity is so weak compared to the other forces?

Researchers that favour MOND as a possible answer to the bigger mysteries of our time, had a setback this week:

http://arstechnica.com/science/news/2011/09/relativity-and-dark-matter-survive-a-redshif-test.ars

I'd kinda hoped that something would come of MOND. The idea that gravity may not be constant was a nice way of explaining away the discrepancies of the missing Mass in the Universe, rather that having to look for Dark Matter as a solution.

And then there's Dark Energy to explain away and the expansion of the Universe. What is Dark Energy and how is it driving the continued acceleration?
[Off-topic] huggs:
From what I've read, empty space has small amounts of energy, known as Quantum Jitters, where if you look at empty space on a small enough scale, the structure of space itsself would break down to a constantly moving 'foam'. I can only imagine that these small amounts of energy when all added up, since the universe is so huge, would add up to a pretty sizeable amount of energy, just it's so spread out it's pretty much undetectable. If empty space is full of energy, then why wouldn't it expand on its own?

These tiny jitters are what caused matter to group up together in the first place after the BB, if not for them, the universe would have remained evenly dipersed matter, no stars would have formed to create all the different elements, and space would be dark by now. I would find it to be believeable that even those tiny jitters when added up would be enough to fuel or at least contribute to expansion, and the increasing distance between matter would account for accelleration, right?

I'm probably wrong, but that's kinda how I've always thought of it
[Off-topic] 4silvertooth:
I'll just prove the universe is infinite no matter what.

Consider the universe you know finite or infinite to be a dot on a paper that paper is on a table that table in a room in a house in a street in city... country...earth.. universe now consider all that being a dot on paper on table and list goes on, so in simple thinking universe is infinite.
[Off-topic] sakai4eva:
Universe is infinite because we can't prove the finite boundaries. Hence, it is observably infinite because we can't observe the finite. Hypotheses rationality.
[Off-topic] Archer:
There's a difference between what we can prove and what is true. Not being able to prove that the universe is finite has nothing whatsoever to do with whether or not it is. We just make assumptions, due to not being able to use facts, and that's where a lot of fail science comes from.
[Off-topic] xaccers:
Although good science will list the assumptions and perform experiments to test them.
[Off-topic] Archer:
Absolutely, but science based on assumptions... isn't that an oxymoron? There's a lot of "theoretical" science out there, and you may as well just put a Star Trek sticker on it for all the validity it holds.
[Off-topic] dagger:
Nope..

Its possible to travel in future but not in past..

sent from my phone using hands and brain...
[Off-topic] m0cha5hake:
Actually it is possible to see the past. When you look up at the stars you are seeing what they looked like hundreds of millions (maybe billions or trillions) of years ago, since it takes the light from the stars that long to reach earth.
[Off-topic] I r o n M a n:
I remember reading somewhere that our minds work faster when we are dreaming due to absence of external stimuli and the mind has less information to proceed.

That could be a reason why our minds lose perception of time.

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] i9100g user:
Time runs parallel to our body while we dream, because if our body dies we won't dream. :D

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[Off-topic] I r o n M a n:
Who loves lucid dreaming? :D

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] m0cha5hake:
I doubt time travel is possible without being able to obtain a speed of c or greater. And that as we know is impossible.
[Off-topic] dagger:
So that means if we could travel faster than light them we could go far away to a distant star and look at the past of the earth..:cool::cool:

sent from my phone using hands and brain...
[Off-topic] sohamssd:
Yes but what's the use:D you won't be able to change it anyways
[Off-topic] i9100g user:
It is impossible with the laws we currently apply and those laws are built on the basis of what we have explored(our earth, moon, space etc) so far...

But it might change as we explore more

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[Off-topic] dagger:
Just saying..

sent from my phone using hands and brain...
[Off-topic] m0cha5hake:
Yes even when we look at the sun we are seeing it in the past since it takes light from the sun 7 minutes to reach earth
[Off-topic] i9100g user:
But I believe past travelling would be even more difficult.

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[Off-topic] dagger:
But what's the use..

sent from my phone using hands and brain...
[Off-topic] m0cha5hake:
I'm not saying there is a use or a possiblity of time travel into the past. I'm just saying that its kind of cool that we are in the present but seeing the past in some instances.
[Off-topic] i9100g user:
But we can see past every where in space ,even the sun we see is 8.3 minutes from past

sent fromXperia sT21i

Everything stock
[Off-topic] m0cha5hake:
Yes that's what I have been saying
[Off-topic] dagger:
But practically we can't look at the sun with a telescope unless we want to be blind..:rolleyes::rolleyes:

sent from my phone using hands and brain...
[Off-topic] i9100g user:
You can look at the stars too, some of them would look more than many years old , depending on the distance in light years.

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[Off-topic] dagger:
+1..

sent from my phone using hands and brain...
[Off-topic] Ichigo:
Which increases the chances of sleep paralysis? No thanks.
[Off-topic] CnC-ROCK:
a simple method would be to be at a place with huge amount of mass. it will result in slowing of time at that place (eg. black hole...revolve around its event horizon) and the time on earth would go at normal speed. so when you return back to earth after long period of time you wont be aged but many years would have passed..

or if you can make wormhole of a larger diameter so that you can pass through it. they connect two points in universe which can be either place or time
[Off-topic] sohamssd:
It doesn't
[Off-topic] Ichigo:
Still...
[Off-topic] sohamssd:
Also you can't do this. If you travel with the speed of light your mass will become infinite and you'd fill the universe.
[Off-topic] roofrider:
This thread has been awfully active lately.

Dafuq are you people talking about? No one's gonna time travel anytime soon.

Go back to sleep now.
[Off-topic] I r o n M a n:
Not if you do it correctly.

And the things you can do in a dream are incredible. You can manipulate whatever you want. Of course, it takes some time to learn, but most people have been doing it unintentionally since childhood.

Sent from my pet - Megatron™

(I was Chalak)

---------- Post added at 01:15 PM ---------- Previous post was at 01:07 PM ----------

People are only talking about going at the speed of light. The nearest galaxy, Andromeda, is 2.5 million light years away. It's gonna take 2.5 million years to get there!

We have to consider going faster.

To become true citizens of the cosmos, we have to travel even faster than light. Yeah, this sounds even more far fetched.

Who here is familiar with the theory of a warp drive?

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] dagger:
Let me correct you..

If you travel with the speed of light your mass will become negligible..

sent from my phone using hands and brain...
[Off-topic] sohamssd:
Let me correct you again

If you travel with the speed of light your mass will become infinite....

If anybody wants i can write the equation by Einstein and prove it :)

m=m' /√(1-(v²/u² ))

Where

m=your mass at speed u

m'=your mass at 0 speed

v=velocity of light

u=your speed

See, put u=v, mass will become m'/0, wasn't very hard was it?;)
[Off-topic] dagger:
But photons travel with the speed of light that means they must have infinite mass which isn't true..:rolleyes::rolleyes:

sent from my phone using hands and brain...
[Off-topic] sohamssd:
:)

Asked the very same question to my teacher

Turns out photons have already negligible mass;)
[Off-topic] Dirk:
Photons have zero mass which is why they are the absolute 'fastest thing in the Universe'.

Any object with Mass, no matter how small that Mass is, would need an infinite amount of energy to accelerate it to the speed of light and would still fall short, even using all the energy in the Universe in the attempt. It would become infinitely Massive though.
[Off-topic] roofrider:
Swear i read something about neutrinos or some other subatomic particle that travels faster than the speed of light for a few micro/nano/pico seconds (not sure which one) quite some time back. But then i just googled and looks like CERN was wrong after all.

So this is me signing off until someone who can stand on the shoulders of Einstein comes along.
[Off-topic] CnC-ROCK:
that guy was correct by eq.

m=m0/(1-(v/c)^2)^(1/2) where m0 is rest mass of the object we can find mass of any particle at speed v.

photons should have large mass according to this. i asked my resonance physics faculty about it all he said was concentrate on what you have in syllabus and that even if i would take up physics for higher studies it wont be in syllabus for up to third year in college. so to get the answer easy way i will have to wait for more 3 years.

---------- Post added at 06:41 PM ---------- Previous post was at 06:36 PM ----------

that is incorrect on many levels. using all the energy of universe you would be able to acc. even a earth to speed of light. the main thing in travelling with speed of light it that you cannot maintain the speed. the KE will be changed to mass at a very high rate.

what do you think, universe has a few joules of energy? a GRB can gives more energy than the sun would give in its entire life time and a GRB is almost next to nothing compared to whole universe. there is lot of energy in universe

And the above thing by me is incorrect..

---------- Post added at 06:48 PM ---------- Previous post was at 06:41 PM ----------

in my opinion warp drive is very basic concept. anybody with some knowledge can understand that but i guess it is practically impossible. it is simple concept and literally trolls all the equations relating mass, energy, velocity or speed and time.

you seem to be a dedicated reader of such topics...:p
[Off-topic] Dirk:
http://www.einstein-online.info/elementary/specialRT/emc

http://curious.astro.cornell.edu/question.php?number=56

http://physics.about.com/od/relativisticmechanics/a/relativity_2.htm

There are a thousand more pages i could link to if you're still not convinced?

No object with mass can be accelerated to the speed of light. The Theory of Relativity has withstood a century of scrutiny by the greatest minds that have ever existed. I think that it will survive you! :p
[Off-topic] sohamssd:
Yes but that's what he said.

---------- Post added at 07:24 PM ---------- Previous post was at 07:22 PM ----------

Resonance, studying for IIT eh? Me too, I'm in iitans pace:D
[Off-topic] CnC-ROCK:
and bump................ i forgot about the relativity's eq.. lol........i did not read any of those article though..we cant get to exact c right now...will have to wait for some radical thinking mind who would be able to suggest a method for it.

but lim v->c- would be enough for us... if not c it does not matter if we fall behind light by (0.1)^infinity/s.

Defeat accepted :p

give a look at my yesterdays proposal if we get to apply g field for infinite distance without us using energy then we dont have to worry about giving it energy...buy sadly it is not possible.
[Off-topic] I r o n M a n:
I am.

And in my opinion, a warp drive, though conceptually simple, is extremely complex when you try to actually make one and impossible by the current technology we have. I also think it could be possible if we could find an energy source.

Anyways, your thoughts about anti-matter?

Because if it exists, the theory of relativity itself becomes relative.

Anti-matter could be used to propel a warp drive.

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] CnC-ROCK:
i dont think that antimatter would have negative mass. because when it annihilates matter energy is produced according to E=mc^2 so its mass would be positive
[Off-topic] Ichigo:
Wow.. You guys discuss the most trivial things. :rolleyes:
[Off-topic] I r o n M a n:
But driving for c-

c= +-(e/m)^1/2

I mean plus/minus the root of e/m

So how do you explain the '-' or the 'minus'?

Sent from my pet - Megatron™

(I was Chalak)

---------- Post added at 08:57 PM ---------- Previous post was at 08:56 PM ----------

Holographic time anybody?

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] CnC-ROCK:
search for some articles.. many physicists belive it would have +mass
[Off-topic] dagger:
Negative mass is meaningless..

sent from my phone using hands and brain...
[Off-topic] i9100g user:
Anti matter? :confused:

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[Off-topic] CnC-ROCK:
that is what i told... search some articles.. it is believed that anti matter would have +mass
[Off-topic] Dirk:
Anti matter has Mass. In fact the anti-matter version should have the mass as the matter counterpart, which is the case with the Electron/Positron.
[Off-topic] i9100g user:
Yes it actually has opposite charges

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[Off-topic] I r o n M a n:
Does anyone believe in the multiverse theory?

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] 063_XOBX:
Schrödinger either does or doesn't until you look at him.
[Off-topic] roofrider:
Lmao!

Ok nerds, lists your favourite physicists.
[Off-topic] CnC-ROCK:
me.:D
[Off-topic] Gogeta:
quantum mechanics sucked me!!!!!!!!!!!!!!1
[Off-topic] I r o n M a n:
It's makes us realise what an insignificant spec we are in the cosmos.

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] LoopDoGG79:
IMHO, significance has nothing to do with size. A microscopic virus is pretty significant when your sick. Sub atomic particles are the basic building blocks of all matter, and that is pretty darn significant in my book. :thumbup:

Sent from the phalanges of my hand to the facet of your cranium.
[Off-topic] sohamssd:
Cool, I wish I could thank you for that post:cool:
[Off-topic] CnC-ROCK:
why you no post here?
[Off-topic] deathnotice01:
significance has to do something with purpose,

but generally we all comeback to the fundamentals,

the basic framework on how everything works,

here is my explaination of the quantum flux theory of action and it's break-even point
[Off-topic] Thats OK:
thanks.button

:good:
[Off-topic] m0cha5hake:
Maybe this thread would get more post if it was "Science and Philosophy". Although I've never finally see anyone talk philosphy (deathnotice just did).
[Off-topic] deathnotice01:
science is an evolved form of philisophy,

wereas science touches reality by application of methods though reasoning and correct thinking,

philosophy may be ancient but it is the fundamental basic of all science
[Off-topic] CnC-ROCK:
archer can rename it........ if he has got some free time
[Off-topic] m0cha5hake:
Yea I agree philosophy is what led to logical thinking. Still think it would be cooler to have a general science thread; you could talk about physics, biology, the weather, or anything science related.
[Off-topic] sohamssd:
Bump!
[Off-topic] conantroutman:
Equal and opposite bump.

Seewhutididthar?

Sent From My Fingers To Your Face......
[Off-topic] Gogeta:
Every bump has an equal & another bump....

you can't explain that
[Off-topic] Thats OK:
Wish I knew it all

Then I wouldn't have to look anything up
[Off-topic] LoopDoGG79:
That's what Google is for. :D

Sent from the phalanges of my hand to the facet of your cranium.
[Off-topic] 063_XOBX:
Since NASA has no budget as of late and the private sector has managing to monetize it, anyone else wondering if they could claim any life (particularly single celled organisms or other simple life) they might discover in the process and the implications if they could?
[Off-topic] m0cha5hake:
I highly doubt it, maybe much much later in the future. But as of now no. NASA still has control over space travel, they are just contracting companies to build the rockets and shuttles needed for space travel. Just like how the military doesn't build any of ours ships, planes, tanks, firearms, etc, contracts them out to companies, and still is in control of manufacture/use if said weapons. I think the whole privatization of space travel was being blown way out of proportion, especially by republicans since they want to privatize everything else.
[Off-topic] I r o n M a n:
But NASA is barely able to scratch a living

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] CnC-ROCK:
why we discussing NASA?:eek:
[Off-topic] sohamssd:
They might.. you never know.
[Off-topic] i9100g user:
NASA ? Huh :sly:I don't believe those guys:eek:

sent fromXperia sT21i

Everything stock
[Off-topic] deathnotice01:
imagine the economy we could build by harvesting resources in nearby planets, but governments are unlikely to make this work without some agreement in taxation
[Off-topic] fuser1337:
I don't know why physics only is given the up-level importance where there is a much more interesting Biology with biotechnology, that created a revolution in the lives of people, decreased the mortality and so on. We should rather get concern about issues about a proper bio-patenting procedure to respect the originality of individual biodiversity of each country.

tl;dr? Yo.
[Off-topic] m0cha5hake:
That's simply not true. From 2008-2011 NASA's annual budget increased every year and was the highest it had ever been in the history of NASA (17+ billion dollars). In 2012 their budget dropped to around 16 billion, but when you take into account the fact that the shuttle program cost about 1.5 billion dollars a year to operate and NASA does not have to account for that any more they are acctaully spending more money on other space related things.

---------- Post added at 07:32 AM ---------- Previous post was at 07:29 AM ----------

Because NASA or Astrology is related to Physics. In my school the Astrology department is part of the Physics department.

---------- Post added at 07:43 AM ---------- Previous post was at 07:32 AM ----------

The cool thing about science is that most of it is interrelated. We wouldn't have biotechnology that you speak up without increased knowledge and advancements in physics, chemistry, etc. But I agree that this should be a general sciencd thread.
[Off-topic] CnC-ROCK:
shall we get back to discussion about real physics instead of a group of people who study it?
[Off-topic] _Variable:
s = d / t

Sent from the unknown abyss

_______________

She has said it, And you said it again.
[Off-topic] CnC-ROCK:
^expect a bit higher level physics from you...:p
[Off-topic] deathnotice01:
she's no bro, :P
[Off-topic] CnC-ROCK:
explain that using newton's law of motion... i only understand physics
[Off-topic] Gogeta:
Physics you say?:rolleyes:
[Off-topic] _Variable:
Sent from the unknown abyss

_______________

She has said it, And you said it again.
[Off-topic] CnC-ROCK:
that..i know..........induced B inside a superconductor case using vector form of ohm's law
[Off-topic] _Variable:
d = s(t)

Sent from the unknown abyss

_______________

She has said it, And you said it again.
[Off-topic] Gogeta:
Quantum mechanics, boson, Fermi particles:eek::eek:
[Off-topic] CnC-ROCK:
bosons, hadrons, mesons:rolleyes::rolleyes::rolleyes:
[Off-topic] I r o n M a n:
Come on, guys. Not this thread. I like it here. :P

Sent from my pet - Megatron™

(I was Chalak)
[Off-topic] m0cha5hake:
[youtube]xe-f4gokRBs[/youtube]
[Off-topic] _Variable:
Fact: we are in the Millky way's edge.

Sent from the unknown abyss

_______________

She has said it, And you said it again.
[Off-topic] Archer:
This are serious thread.