Wednesday, April 30, 2014

Breaking News!

Welcome to this breaking news segment on the one and the only Science-News.fm!!! The source of all things from under the sea, to the world you see, even to the stars, we are your news source!! On today’s breaking news…. the theory that our universe is contained inside a bubble, and that multiple alternative universes exist inside their own bubbles – making up the ‘multiverse’ – is, for the first time, being tested by physicists.

Two research papers published in Physical Review Letters and Physical Review D are the first to detail how to search for signatures of other universes. Physicists are now searching for disk-like patterns in the cosmic microwave background (CMB) radiation - relic heat radiation left over from the Big Bang – which could provide tell-tale evidence of collisions between other universes and our own.

Many modern theories of fundamental physics predict that our universe is contained inside a bubble. In addition to our bubble, this `multiverse’ will contain others, each of which can be thought of as containing a universe. In the other 'pocket universes' the fundamental constants, and even the basic laws of nature, might be different.

Until now, nobody had been able to find a way to efficiently search for signs of bubble universe collisions - and therefore proof of the multiverse - in the CMB radiation, as the disc-like patterns in the radiation could be located anywhere in the sky. Additionally, physicists needed to be able to test whether any patterns they detected were the result of collisions or just random patterns in the noisy data.

A team of cosmologists based at University College London (UCL), Imperial College London and the Perimeter Institute for Theoretical Physics has now tackled this problem.

“It’s a very hard statistical and computational problem to search for all possible radii of the collision imprints at any possible place in the sky,” says Dr Hiranya Peiris, co-author of the research from the UCL Department of Physics and Astronomy. “But that’s what pricked my curiosity.”

The team ran simulations of what the sky would look like with and without cosmic collisions and developed a ground-breaking algorithm to determine which fit better with the wealth of CMB data from NASA’s Wilkinson Microwave Anisotropy Probe (WMAP). They put the first observational upper limit on how many bubble collision signatures there could be in the CMB sky.

Stephen Feeney, a PhD student at UCL who created the powerful computer algorithm to search for the tell-tale signatures of collisions between "bubble universes", and co-author of the research papers, said: "The work represents an opportunity to test a theory that is truly mind-blowing: that we exist within a vast multiverse, where other universes are constantly popping into existence."

One of many dilemmas facing physicists is that humans are very good at cherry-picking patterns in the data that may just be coincidence.  However, the team’s algorithm is much harder to fool, imposing very strict rules on whether the data fits a pattern or whether the pattern is down to chance.

Dr Daniel Mortlock, a co-author from the Department of Physics at Imperial College London, said: "It's all too easy to over-interpret interesting patterns in random data (like the 'face on Mars' that, when viewed more closely, turned out to just a normal mountain), so we took great care to assess how likely it was that the possible bubble collision signatures we found could have arisen by chance."

The authors stress that these first results are not conclusive enough either to rule out the multiverse or to definitively detect the imprint of a bubble collision. However, WMAP is not the last word: new data currently coming in from the European Space Agency’s Planck satellite should help solve the puzzle.
This has been breaking new from your friends at  Science-News.fm. Have an astronomical day!!

Thursday, April 24, 2014

Daughter and Mathematical Universes

Daughter and Mathematical Universes

Daughter Universes

The theory of quantum mechanics, which reigns over the tiny world of subatomic particles, suggests another way multiple universes might arise. Quantum mechanics describes the world in terms of probabilities, rather than definite outcomes. And the mathematics of this theory might suggest that all possible outcomes of a situation do occur — in their own separate universes. For example, if you reach a crossroads where you can go right or left, the present universe gives rise to two daughter universes: one in which you go right, and one in which you go left.


 Mathematical Universes

Scientists have debated whether mathematics is simply a useful tool for describing the universe, or whether math itself is the fundamental reality, and our observations of the universe are just imperfect perceptions of its true mathematical nature. If the latter is the case, then perhaps the particular mathematical structure that makes up our universe isn't the only option, and in fact all possible mathematical structures exist as their own separate universes.


S M A T H E M A T I C A L C O S Y S B Y
C M V N E T L I W V J N C E E T H P Y J
N O Y A I N D P I U D V T L K A O C I V
I Q C P F I Z P B O X U G I I O Q A W M A H P R G I J Y S T Q I A G R Z Y E H S
E K U C G D F A B Y O D M O C F D N Y N
H F G T Q F B N T C L E D D J E O J S F C H W I L E T U D I R U D M F Y J X S K M B L L K M U I S C I E N C E H B W G F
N P E P F W R O P K J V X A F U D Q I E
M N Z E R G S S T C S B W W H B A G P R A L O S H S N U T Y O U D K A R G N B P T U Q T O C E Z G Q K A B G L T Z S C I A R C R U U Z I H K H F F B T H N Q W V
E S R E V I N U A Q S M Z I E O O K Y Z
U L P C A L E T A V C B E L I O L F U Z Q R B D T D I E D S T T F K G V M P Q P U R P J A A X S M D K C Y H M M E I W I K I U O Z Y D F F U D V Q D M U A K C Q
R D R A V C Q U A K I D W G Z A A S Z T


CHANCE
DAUGHTER
DEFINITE
MATHEMATICAL
MULTIPLE
PARTICLES
POSSIBILITIES
QUANTAMMECHANICS
REALITY
SCIENCE
SPACE
SUBATOMIC
UNIVERSE

Parallel Universes

Parallel Universes


One idea that comes from the String theory is the idea of “Braneworlds” – parallel universes that are just out of reach of our own. The idea is proposed by Princeton University’s Paul Steinhardt and Neil Turok of the Perimeter Institute for Theoretical Physics in Ontario, Canada. The idea springs from the notion that there are many more dimensions than the three of space and time that we know. Along with this three dimensional “brane” that we inhabit, other three-dimensional “branes” may float in a higher dimension of space. Columbia Univesity physicist Brian Greene describes the idea as the notion that “our space is one of potentially numerous ‘slabs’ floating in a higher-dimension space, much like a slice of bread within a grander cosmic loaf,” in his book “The Hidden Reality” (Vintage Books, 2011). If these parallel universes are indeed true, then movies like THOR might have some possibilities if the “Braneworlds” ever coincide or run into each other.


(Small article from ScienceJournal.com)

Friday, April 11, 2014

mgp Journal
3/26/2014
Journal,
          My mind has been racing lately about the universe and its mysteries…More recently my mind has meandered into the thoughts of the possibilities or other universes and how they might be laid out. What if there are an infinite number of universes out there? We can’t be sure what the shape of space-time is, but it would most likely be flat and stretch out indefinitely. Eventually, - if it goes on forever- space-time must start repeating because there is a finite number of ways that particles can be arranged. If our universe extends only as far as light has had a chance to reach,13.7 billion years since the Big Bang, the space beyond that could be considered its own separate universe. In this manner, a huge number of universes could exist next to each other in a giant cosmic-puzzle, if you will. If you go on far enough, would we find other versions of our-selves? Some doing the exact same thing we are? Some slightly different in how they dressed today? Some that may have chosen a whole other life path and career totally?  Imagine how humans might be different in another universe? We might never have discovered electricity or how to store food for times longer than a couple days, and have to hunt and gather all of our food.   It could be called Infinite universes.

3/27/2014
Journal,



          What if universe could arise from a theory called “eternal inflation?” Inflation meaning like a bubble or a balloon. Inflation is the idea that the universe expanded rapidly after the Big Bang. Imagine that you are blowing bubbles. Now take that image and blow it up to cosmic proportions, where the air is space and the bubbles are universes being created. As the bubbles expand, some expand very fast and you get very small bubbles, but in other cases you might get one huge bubble. In this manner, you can see how many different universes can be made. Some of those bubbles fly weird,and you might get the idea that the physics for that bubble is different than for the other ones. We know that this isn’t true for the bubbles, BUT what if this is a reality for the universes being created? The laws of physics and fundamental constants might be different than in ours, making some universes strange places indeed. It could be called Bubble universes.  It could be called Balloon universe.