/sci/ - Science & Math

Is it possible that the universe stretches on forever and ever?

Is there life on earth?

First off I admit I'm not a man of science. But I have a question for you /sci/.

The universe started from a singularity and is expanding at an accelerating rate, right?

My question is; is our position in this expansion constant or are we riding the expansion at an ever expanding speed outward?

What the size of proton?

Is life and consciousness just a sick joke of our universe?

So /sci/ I've read an article about the theory of holographic universe but I didn't understand the whole thing very well. Can you help me?

hey everyone. so i just wanted to get someones opinion on it, and all my friends are dumb shits who found it amazing when they discovered the quote about there being more stars created by the big bang than grains of sand on all the beaches of the world. three days ago..
so basically its well known that there are really 2 possibilities about the size of the universe, either is endless, or its not, both concepts i find to be equally terrifying, however the topic at hand isnt about fear, but a possibility of discovery. im just really curious /sci/ on the whole of the endless universe, (unless we are in a box) can you really stand there and tell me that we are the only big bang. if you can imagine for a second, a three dimensional cubed thousand mile box with an atom floating around to represent the result of the big bang, how can you tell me that there are not other atoms within this cube? its simply outrageous to believe so. and besides this fact, the cube is insignificant, not even an atom standing against a galaxy when compared to the theoretically endless universe

So do we know how the universe came to be yet?

What is left if you remove all mass/energy from the Universe ?

Quite recently I've been thinking about death a lot and it always ends with me being depressed about me not existing and everything.I've always believed that the universe will last forever and in this "foreverness" , the odds that particles will group together to form myself again are infinitely big.It's just that recently I've come to accept that the universe will come to an end and so will the chances that I'll be reborn again after I die.

Just a thought I'd like to share.

I just finished watching a documentary about the essense of reality. In the documentary they talked about the "hologram Theroy". That therorie is suggestig that all information ( feel, coulors, of objects etc) in the universe is in a cashe surronding the universe(that we cant see). And is taken when needed. And then it hit me that video games does that too(takes textures and hitboxes from a file witch you cant see from the game. correct me if im wrong.

If my goal is to get the deepest and truest possible insight to Life, the Universe and Everything; what and how do I study?

Hello!

I am a web designer, but have always been interested in physics and the universe. I find the best way to learn is either working hands on or by reading.

I have been trying to assemble a good list of books that give some broad explanations of physics and the universe, but do not explain them in such a way that you need to already be a physicist.

Does this list look ok? Anything you would add or remove?

A Brief History of Time --Stephen Hawking
Black Holes and Baby Universes and other Essays -- Stephen Hawking
The Universe in a Nutshell -- Stephen Hawking
The Future of Spacetime -- Stephen Hawking, Kip Thorne, Igor Novikov, Alan Lightman
The Nature of Space and Time -- Stephen Hawking and Roge Penrose
The First Three Minutes -- Steven Weinberg
The Discovery of Sub-atomic Particles -- Steven Weinberg
Dreams of a Final Theory -- Steven Weinberg
The Character of Physical Law -- Richard Feynman
QED -- Richard Feynman
The Pleasure of Finding Things Out -- Richard Feynman
The Meaning of it All -- Richard Feynman
The Quark and the Jaguar -- Murray Gell-Mann
Beyond Star Trek -- Lawrence Kraus
Space, Time and Gravity -- Robert Wald
The Trouble with Physics -- Lee Smolin
The Emperor's New Mind -- Roger Penrose
The Road to Reality, A Complete Guide to the Laws of the Universe -- Roger Penrose
The God Particle -- Leon Lederman
Conversations on the Dark Side of Physics -- Edward Teller
Superstrings -- edited by Paul Davies and J. Brown
The Inflationary Universe -- Alan Guth
The Elegant Universe -- Brian Greene
The Fabric of the Cosmos -- Brian Greene
Relativity, the Special and General Theory -- Albert Eiinstein

What makes more sense /sci/?

A. The universe is eternal and therefore time is infinite.

B. The universe is not eternal and therefore is also finite and time is finite too.

C. The universe is just a simulation.

For me A is the most logical. What about you /sci/?

guys here me out on this one

so the universe is expanding rapidly. what if once absolutely everything in the universe has gone, and assuming dark matter completely decays and there is literally nothing left for gravity to have an effect on...

what if the gravity of the universe still persists, however unimaginably weak, however greatly it has dissipated over time, and with absolutely nothing left to interact with it, it begins to interact with itself. this remaining ultra weak gravity would begin moving about and as larger pockets of gravity influence others, eventually all gravity begins accumulating and whereas the universe was expanding before, gravity would now be traveling inwards towards a center point

all the gravity ever in the universe would clump together at this single point, creating a singularity, from which a new universe is created in the same manner as this one

What would happen if you stuck your hand outside the edge of the Universe?

With the Big Bang and all the beginning theories of the universe, what it is I never understood is how the big explosion came from no where. How can something just start existing? Perhaps we live in a universe that itself lives in a bigger universe in which Big Bangs happen all the time?

If that is true, then how did the initial universe come to exist?

Do we even exist in the first place?

Good night sweet price. Tonight you awaken among the stars ;(

Some people propose that consciousness is a unknown quantity or a 'soul'

So in this model this 'soul' can go into limbo, either heaven hell or into a reincarnation.

If it follows the information is in 'limbo' though time (as in reincarnation). Or escaping relativity.

Than the information is leaving the fourth dimension or transiting by other means.

It also follows that as no record of continuous conscious biomass in any limited space. What of the time before the earth was created ect. A soul must have escaped the third dimension as well, to follow the model of individualistic reincarnation or souls ect. This would follow that this model escapes the third and fourth dimensions.

If your information or 'soul' can escape the third and fourth dimension than it must move through another higher dimension. If it can transit a higher dimension it must follow that it can exist in congruency. The same way a 3 dimensional object can exist in two separate places at two separate 4th dimensional states (times). So individualistic reincarnation model / souls contain possibility of infinite combinations of information and consciousness' the same way your pen can be in infinite spaces given infinite time.

Than individualistic reincarnation follows the model of holism, meaning individualism even if it did exist ,would be irrelevant terminology in the higher dimension and the term 'individual' or a singular possessive of consciousness' is obsolete.

(cont.)

>>4913971
Yeah for the credit hours.. I do have to take a physics course and I need to take some science electives.. I'm just wondering how practical it would be for me to minor in something and finish it later?

>>4913972
More less.. Took a job I know I'd like and be happy with and practical.. Just not seeing it as I used to I guess.. I'd rather be looking at distant stars or figuring out how the universe works..

So these guys find this thing 13 billion light years away. My question is, what the hell do we learn from spotting something way the hell out there?
Article related.

http://www.examiner.com/article/arizona-state-astronomers-find-galaxy-13-billion-light-years-away

I need a quick and interesting theme for my science project.
Help me /sci/

Hello /sci/...Seeking help with Thermochemistry!

I've been looking through my chem book and I can't seem to find the answer to my homework question. This is probably a stupid question but oh well here it goes, I hope someone will be able to help.

In the previous problem I was asked to find the change in gibbs free energy. I was given a few chemical equations and solved those just fine. Then, the next question says to "Find the change in Gibbs Free Energy for the reactions in the previous problem using heat of formation and Entropy values."

Sorry for bringing this here but I can't figure it out.

Many people hope for space colonization or asteroid mining to solve our resource problems. However, the vastness of space and the impracticalities of long-range transport make that rather problematic.

We are relatively proficient in using some of the earth's surface, but clearly that won't cut it in the long run.

What if we could actually take the earth apart and use its base materials to create a more sponge-like structure that is not as dense as the earth (no molten core, say), but that contains much greater habitat space? Who says life needs to exist on the surface of a dense planet?