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Gravity may have chased light in the early universe
New Scientist ^ | 23 Nov, 2016 | Michael Brooks

Posted on 11/28/2016 8:22:13 AM PST by MtnClimber

It’s supposed to be the most fundamental constant in physics, but the speed of light may not always have been the same. This twist on a controversial idea could overturn our standard cosmological wisdom.

In 1998, Joao Magueijo at Imperial College London, proposed that the speed of light might vary, to solve what cosmologists call the horizon problem. This says that the universe reached a uniform temperature long before heat-carrying photons, which travel at the speed of light, had time to reach all corners of the universe.

The standard way to explain this conundrum is an idea called inflation, which suggests that the universe went through a short period of rapid expansion early on – so the temperature evented out when the cosmos was smaller, then it suddenly grew. But we don’t know why inflation started, or stopped. So Magueijo has been looking for alternatives.

Now, in a paper to be published 28 November in Physical Review, he and Niayesh Afshordi at the Perimeter Institute in Canada have laid out a new version of the idea – and this one is testable. They suggest that in the early universe, light and gravity propagated at different speeds.

If photons moved faster than gravity just after the big bang, that would have let them get far enough for the universe to reach an equilibrium temperature much more quickly, the team say.

A testable theory What really excites Magueijo about the idea is that it makes a specific prediction about the cosmic microwave background (CMB). This radiation, which fills the universe, was created shortly after the big bang and contains a “fossilised” imprint of the conditions of the universe.

(Excerpt) Read more at newscientist.com ...


TOPICS: Science
KEYWORDS: physics
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To: MtnClimber
These idiots make me laugh. Long before Mensa told me that my I.Q. was "well over 150..." I asked my 9th Grade Physics teacher to explain something which he had taught about light ("...a combination of particles and waves," he said), energy, velocity, and light possessing the "ultimate velocity attainable in our universe."

He was unable to answer my question, and even gave me detention for asking it.

Ever since then, I have known beyond any shadow of a doubt, that these "scientists" were using the collection of data to support their choice of religion, "Science," and that they actually know nothing.

They pigeonhole and categorize...
They see with their mouths, not their eyes,
Their officiousness is their thin disguise
for this "Science" thing they build with lies.

Our One World Wishing Pols have now perverted Science beyond even the humble deception it began as, and now use it like their own club to beat the masses into submission.

They tell us that CO2 (carbon-dioxide) is a "greenhouse gas" that will destroy our planet...

...despite that every green thing on this planet, from sea algae to the great sequoias uses CO2 to make oxygen in the photosynthetic process. That's right. An abundance of CO2 results in an abundance of oxygen, and a greener planet.

I hate liars even more than I despise imbeciles.

21 posted on 11/28/2016 8:53:55 AM PST by Gargantua ("President Trump... nice ring to it..." ;^)
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To: PROCON

He ain’t heavy... he’s my gravity.


22 posted on 11/28/2016 8:55:22 AM PST by Gargantua ("President Trump... nice ring to it..." ;^)
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To: Noumenon

LOL. Yeah, entropy has me firmly in its clutches!


23 posted on 11/28/2016 8:56:07 AM PST by Obadiah
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To: dayglored

C is a defined constant, the speed of light in a vacuum.


24 posted on 11/28/2016 8:59:47 AM PST by TexasGator
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To: MtnClimber

I had mashed potatoes with gravity at Thanksgiving.


25 posted on 11/28/2016 9:00:59 AM PST by beethovenfan (I always try to maximize my carbon footprint.)
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To: Noumenon
...gravity....Lately, it’s been chasing me. Or is that entropy?

It chased me and ran me down after Thanksgiving dinner. Held me down in the easy chair pretty much immobile, easily mistaken for having an of air of gravitas... but for a gravy spot or two. Damn gravity!

Hoping you had a good one.

26 posted on 11/28/2016 9:08:53 AM PST by Covenantor (Men are ruled...by liars who refuse them news, and by fools who cannot govern. " Chesterton)
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To: MtnClimber

Gravity sucks.


27 posted on 11/28/2016 9:10:36 AM PST by central_va (I won't be reconstructed and I do not give a damn.)
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To: MtnClimber

This is very interesting to me. I have been attracted to gravity for some time now.


28 posted on 11/28/2016 9:12:43 AM PST by rjsimmon (The Tree of Liberty Thirsts)
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To: Gargantua
...despite that every green thing on this planet, from sea algae to the great sequoias uses CO2 to make oxygen in the photosynthetic process. That's right. An abundance of CO2 results in an abundance of oxygen, and a greener planet. In that regard, recent satellite images have identified the area where photosynthesis is most prevalent...and the most oxygen is being produced.

Is it the fabled rain forest of the Amazon Basin that is responsible for producing all that oxygen for us to breathe?

Nope. The American Corn Belt is the most ravenous user of C02 and generator of oxygen on the planet.

Further, satellite surveys from 1968 forward demonstrate that the Earth's forests are steadily expanding -- suggesting that the increased industrial production of C02 is not going to waste.

29 posted on 11/28/2016 9:13:00 AM PST by okie01 ( The MainStream Media: IGNORANfCE ON PARADE)
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To: MtnClimber

For later


30 posted on 11/28/2016 9:14:18 AM PST by Tzimisce
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To: Covenantor

I did have a pleasant Thanksgiving. Went over to the neighbors and had turkey, yams aalad and green beans. Didn’t even go off the reservation wrt my blood sugar numbers.


31 posted on 11/28/2016 9:15:28 AM PST by Noumenon (Proud Irredeemable Deplorable, heavily armed Infide)
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To: MtnClimber

I’ve often wondered if the space:time:light-speed relationship influences our concept of “age” during the earlier periods of the universe. In other words, something that we think is 10 millions years old, really isn’t. It’s as though we need a “time index” that everyone is +/- from, as we know time is not constant in different places in the universe.


32 posted on 11/28/2016 9:16:45 AM PST by fuzzylogic (welfare state = sharing consequences of poor moral choices among everybody)
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To: MtnClimber

Make edumacated guesses, get lots’a gummint grants.


33 posted on 11/28/2016 9:20:49 AM PST by JimRed (Is it 1776 yet? TERM LIMITS, now and forever! Build the Wall, NOW!)
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To: MtnClimber

For those refusing to recognize God’s creation, they will forever be perplexed attempting to explain “first cause”.

Light has a source that has mass.
Everything that has a measurable mass has gravity.

The “chicken or egg” question is no more valid for the bird than it is for mankind.


34 posted on 11/28/2016 9:22:14 AM PST by G Larry (America has the opportunity to return to God.)
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To: Obadiah
I’ve chased gravity many times in my life.

It is difficult to peruse threads like this one and maintain one's gravity.

35 posted on 11/28/2016 9:22:55 AM PST by JimRed (Is it 1776 yet? TERM LIMITS, now and forever! Build the Wall, NOW!)
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To: MtnClimber
Planck's Equation of Light Constant Speed





36 posted on 11/28/2016 9:28:24 AM PST by Fiddlstix (Warning! This Is A Subliminal Tagline! Read it at your own risk!(Presented by TagLines R US))
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To: okie01
This entire "Global Warming" sham is nothing more than Gov't coming up with a way to dictate to us every instance of control over our own lives that "Obamamcare" hasn't already stripped away like a bunch of "teens" in the night.

Where we live, how far we drive to work, what we buy at the gorcery store, what we eat for breakfast, lunch and dinner, this was the rest of The Globalist One World plan for taking over every remaining jot and tittle of it.

Now they can go pound sand. We took our country back, and with it, control of the entire planet.

They and all their tard-snot science are belong to us now.

They would do well to behave now, so we don't have to kill all of them.

;^)

37 posted on 11/28/2016 10:21:17 AM PST by Gargantua ("President Trump... nice ring to it..." ;^)
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To: MtnClimber

Is there a scientific explanation for why light travels in the first place? Obviously, if it didn’t, we’ll all be in the dark...or rather wouldn’t exist since complex life forms wouldn’t survive on earth. But light keeps traveling some 186,000 miles per second year after year, without vacations or time off for good behavior...why doesn’t it get tired?


38 posted on 11/28/2016 3:30:22 PM PST by Verginius Rufus
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To: MtnClimber

When he caught her, Light slapped Gravity and said, “Fresh!”


39 posted on 11/28/2016 3:31:33 PM PST by Rastus (#NeverHillary #AlwaysTrump)
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To: Noumenon

“Lately, it’s been chasing me. Or is that entropy?”

Cheeseburgers most likely.

L


40 posted on 11/29/2016 3:53:40 AM PST by Lurker (America burned the witch.)
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