|
03-17-2014, 05:14 PM | |
The Boom Boom Room
Join Date: Aug 2000
Location: Far Beyond Comprehension
Casino cash: $-587187
|
Scientists find cosmic ripples from birth of universe
Scientists find cosmic ripples from birth of universe
Published March 17, 2014 Astronomers have discovered what they believe is the first direct evidence of the astonishing expansion of the universe in the instant following the Big Bang -- the scientific explanation for the birth of the universe some 13.8 billion years ago. Scientists believe that the universe exploded from a tiny speck and hurled itself out in all directions in the fraction of a second that followed, beginning just 10 to the minus 35 seconds (roughly one trillionth of a trillionth of a trillionth of a second) after the universe's birth. Matter ultimately coalesced hundreds of millions of years later into planets, stars, and ultimately us. And like ripples from a ball kicked into a pond, that Big Bang-fueled expansion caused ripples in the ancient light from that event, light which remains imprinted in the skies in a leftover glow called the cosmic microwave background. Scientists still don’t know who kicked the ball. But if confirmed, the newfound ripples would be amazing proof of what has long been mere theory about what happened in those first millionths of a second. “The implications for this detection stagger the mind,” said Jamie Bock, professor of physics at Caltech, laboratory senior research scientist at the Jet Propulsion Laboratory (JPL) and project co-leader. “We are measuring a signal that comes from the dawn of time.” "It would be the most important discovery since the discovery, I think, that the expansion of the universe is accelerating," Harvard astronomer Avi Loeb, who is not a member of the study team, told Space.com. He compared the finding to a 1998 observation that opened the window on mysterious dark energy and won three researchers the 2011 Nobel Prize in physics. The groundbreaking results came from observations by BICEP2, a telescope at the South Pole, of the cosmic microwave background -- a faint glow left over from the Big Bang. Beginning a fraction of a fraction of a second after the universe's birth, according to the current theory, space-time expanded incredibly rapidly, ballooning outward faster than the speed of light. The afterglow from that expansion is called the cosmic microwave background, and tiny fluctuations in it provide clues to conditions in the early universe. For example, small differences in temperature across the sky show where parts of the universe were denser, eventually condensing into galaxies and galactic clusters. Since the cosmic microwave background is a form of light, it exhibits all the properties of light, including polarization. On Earth, sunlight is scattered by the atmosphere and becomes polarized, which is why polarized sunglasses help reduce glare. In space, the cosmic microwave background was scattered by atoms and electrons and became polarized too. “Our team hunted for a special type of polarization called ‘B-modes,’ which represents a twisting or ‘curl’ pattern in the polarized orientations of the ancient light,” said Bock. The team presented their work at a press conference Monda at Harvard -- the discovery of that characteristic pattern of polarization in the skies, which they called proof of the gravitational waves across the primordial sky. “This work offers new insights into some of our most basic questions: Why do we exist? How did the universe begin? These results are not only a smoking gun for inflation, they also tell us when inflation took place and how powerful the process was,” Harvard theorist Avi Loeb said. |
Posts: 42,522
|
03-19-2014, 11:39 AM | #211 | ||
Ain't no relax!
Join Date: Sep 2005
Casino cash: $808919
|
Quote:
Quote:
__________________
|
||
Posts: 48,259
|
03-19-2014, 11:39 AM | #212 |
Broncos' Fan Extraordinaire!
Join Date: Sep 2003
Location: Denver
Casino cash: $10012184
|
at what part exactly?
__________________
ORANGE COLORED GLASSES ARE ALWAYS ON! |
Posts: 6,151
|
03-19-2014, 11:40 AM | #213 | |
Bring it on Ahab!
Join Date: May 2011
Location: Doo-Dah
Casino cash: $10015152
|
Quote:
All he can do is say "No, U!" He should not enter that sauce into the county fair, because it is weak. |
|
Posts: 14,861
|
03-19-2014, 11:43 AM | #214 | |
Starter
Join Date: Apr 2004
Location: Missoula, MT
Casino cash: $10005005
|
Quote:
I mention this not because I am an expert, but because I took your question, did a simple Google search, and found several answers that are supported by observable fact. |
|
Posts: 824
|
03-19-2014, 11:45 AM | #215 |
Veteran
Join Date: Jul 2008
Location: JCMO
Casino cash: $4845291
|
__________________
KANSAS CITY ROYALS 2015 WORLD SERIES CHAMPIONS I AM A MAHOMESEXUAL |
Posts: 4,714
|
03-19-2014, 11:49 AM | #216 |
Broncos' Fan Extraordinaire!
Join Date: Sep 2003
Location: Denver
Casino cash: $10012184
|
Thank You! So the theory of zero energy is the key to this theory! At least that is something...
__________________
ORANGE COLORED GLASSES ARE ALWAYS ON! |
Posts: 6,151
|
03-19-2014, 11:58 AM | #217 |
Broncos' Fan Extraordinaire!
Join Date: Sep 2003
Location: Denver
Casino cash: $10012184
|
ok I watched that part and a little more. I still struggle with the fact that it this theory is based on a random event. But the idea that negative energy and positive energy cancel themselves out leaving the theory of zero energy to enable the universe to start is something that needs further investigation.
__________________
ORANGE COLORED GLASSES ARE ALWAYS ON! |
Posts: 6,151
|
03-19-2014, 12:43 PM | #218 | |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $808919
|
Quote:
Relative theory explains very well the motion of what we consider large bodies focusing on the force of gravity. But when you try to apply the theory of relativity(gravity) to very small scenarios, some things happen that relativity cannot explain. To simplify, gravity acts weird at really really small scales, and relativity breaks down. Inversely, quantum theory does very well at explaining things that happen on a very small scale, by looking at the natural forces other than gravity. Electromagnetic, weak, and strong forces in nature. These forces have great effect at very small scales where gravity is essentially insignificant. But these 3 forces are so weak at large scales that the physics again breaks down. Quantum mechanics in turn cannot explain some things that happen on very large scales, mostly because gravity is the dominant force there. Which is also why quantum mechanics could actually serve as a better model than relativity for explaining the Big Bang because it's describing the universe as a tiny singularity where quantum physics works better. Gravity doesn't have much if any affect in a singularity, which is why the Big Bang theory doesn't necessarily violate relativity. That said.... we need a new model that explains all 4 natural forces simultaneously. When we finally discover the "Theory of everything" that can explain physics correctly at all scales of reference, we'll have another explosion of knowledge and information even bigger than when we proved the relativity and quantum theories. And it will happen eventually. Hopefully in our lifetime. It may very well be that we need to include another force(s) other than the 4 that we know. Perhaps it will require new physics to include what we now know as dark energy/matter/weakly interacting massive particles. That's my guess.
__________________
Last edited by Fish; 03-19-2014 at 12:49 PM.. |
|
Posts: 48,259
|
03-19-2014, 03:54 PM | #219 | |
Space Cadet and Aczabel
Join Date: Aug 2000
Location: Kanab, UT, USA
Casino cash: $9333275
VARSITY
|
Quote:
__________________
Thanks, Trump for the civics lesson. We are learning so much about RICO, espionage, sedition, impeachment, the 25th Amendment, order of succession, nepotism, separation of powers, 1st Amendment, obstruction of justice, the emoluments clause, conflicts of interest, collusion, sanctions, oligarchs, money laundering and so much more. |
|
Posts: 40,584
|
03-19-2014, 07:51 PM | #220 | |
Has a particular set of skills
Join Date: Dec 2003
Location: On the water
Casino cash: $1588962
VARSITY
|
Quote:
When we figure out what dark matter and energy is or how it interacts with the universe.....it would seem we are ready to make a big leap in science and change not just our understanding of the universe but our current life's.
__________________
Mind you own damn business |
|
Posts: 79,879
|
03-19-2014, 08:09 PM | #221 | |
Ain't no relax!
Join Date: Sep 2005
Casino cash: $808919
|
Quote:
__________________
|
|
Posts: 48,259
|
03-19-2014, 09:08 PM | #222 |
Now you've pissed me off!
Join Date: Jan 2006
Casino cash: $7739572
|
Define irony:
Someone with no background in science who feels they are qualified to discredit the theses of brilliant individuals who have spent a lifetime contributing to a compendium of knowledge.
__________________
"When the Know-Nothings get control, it will read 'all men are created equal, except negroes, and foreigners, and Catholics.' When it comes to this I should prefer emigrating to some country where they make no pretense of loving liberty – to Russia, for instance, where despotism can be taken pure, and without the base alloy of hypocrisy.”--Abraham Lincoln |
Posts: 74,934
|
03-19-2014, 09:23 PM | #223 | |
Supporter
Join Date: Jul 2011
Casino cash: $3201956
|
Quote:
That is my main argument to people who just.cant.get.it. People can accept EVERYTHING that comes from science, computers, satellites, medicine, OUR ENTIRE WORLD, and we KNOW it works. You know, because THAT IS HOW WE WHERE ABLE TO CREATE THESE THINGS! And then people dedicate their entire lives to knowing about how things TRULY work, collaborating all around the world, in the past and going into the future. And when they talk about anything that is at odds with stone aged myths, all the sudden, the 'science isnt in' or any other number of excuses, we have heard them all. Are you kidding me? The other day, in a single conversation. I had an otherwise intelligent person tell me; 1. 'they found noahs ark, they found it!' 2. Carbon dating has been disproven 3. Humans have only been around for 2000 years 4. The bible was written in the 1800s, after science had taken hold, so science has proven the bible true. This is why people who understand science, and how it really works, get so exasperated all the time. Come on. |
|
Posts: 10,668
|
03-19-2014, 10:50 PM | #224 | |
Starter
Join Date: Oct 2009
Casino cash: $9991431
|
Quote:
|
|
Posts: 138
|
03-19-2014, 11:13 PM | #225 | |
Bring it on Ahab!
Join Date: May 2011
Location: Doo-Dah
Casino cash: $10015152
|
Quote:
People say weird stuff. |
|
Posts: 14,861
|
Thread Tools | |
Display Modes | |
|
|