MSM Headline: "U.S. Economy: Growth May Slow From 5.3% Annual Rate" | Main | Stuff William Jefferson Said, Vol. I
May 25, 2006

Rutgers and Duke Scientists Claim Five-Dimensional Universe

...and they say they can prove or disprove their model in the next several years.

They've got their guns set on Einstein.

Scientists at Duke and Rutgers universities have developed a mathematical framework they say will enable astronomers to test a new five-dimensional theory of gravity that competes with Einstein's General Theory of Relativity.

Charles R. Keeton of Rutgers and Arlie O. Petters of Duke base their work on a recent theory called the type II Randall-Sundrum braneworld gravity model. The theory holds that the visible universe is a membrane (hence "braneworld") embedded within a larger universe, much like a strand of filmy seaweed floating in the ocean. The "braneworld universe" has five dimensions -- four spatial dimensions plus time -- compared with the four dimensions -- three spatial, plus time -- laid out in the General Theory of Relativity.

...

Keeton and Petters focused on one particular gravitational consequence of the braneworld theory that distinguishes it from Einstein's theory.

The braneworld theory predicts that relatively small "black holes" created in the early universe have survived to the present. The black holes, with mass similar to a tiny asteroid, would be part of the "dark matter" in the universe. As the name suggests, dark matter does not emit or reflect light, but does exert a gravitational force.

The General Theory of Relativity, on the other hand, predicts that such primordial black holes no longer exist, as they would have evaporated by now.

"When we estimated how far braneworld black holes might be from Earth, we were surprised to find that the nearest ones would lie well inside Pluto's orbit," Keeton said.

Petters added, "If braneworld black holes form even 1 percent of the dark matter in our part of the galaxy -- a cautious assumption -- there should be several thousand braneworld black holes in our solar system."

...


"If the braneworld theory is correct," they said, "there should be many, many more braneworld black holes throughout the universe, each carrying the signature of a fourth dimension of space."

Nice, I guess, but I'm always looking for someone to propose something that simplifies the conceptual framework of higher physics. This doesn't seem to do so.

What's that fourth dimension physical dimension all about? What's it for? I was hoping the article would say something about it.


digg this
posted by Ace at 03:50 PM

| Access Comments




Recent Comments
Hadrian the Seventh: " [i] Wow. Listening to the 1805 version of Beetho ..."

bluebell ~ get cooking, Horde!: "Aw, Salty - how nice! I get it about the language ..."

Cosmic Charlie: "Is Everyrhing Bach done yet? ..."

Side draft: "Someone upthread said that President Trump probabl ..."

Fritz: "hmm.  Why does the NFL continue to injure tho ..."

filbert: "[i] Someone upthread said that President Trump pro ..."

Your Decidedly Devious Uncle Palpatine, Booking Agent, Aero Pinochet: "302. How do you think she got outta the pen so fas ..."

ScoggDog: "[i]Pretty unbelievable stuff and if you can stomac ..."

Miklos Molnar, on the 49 meter band: "If that's the case we owe you 37 cents. Posted ..."

garrett: "The Rock stars in TRIPLE EXTANT ..."

Bruce: "Funny. they only fit a '49 Hudson Commodore. Post ..."

andycanuck: "I like andouille sausage in jambalaya though I hav ..."

Recent Entries
Search


MuNuvians
Polls! Polls! Polls!
Frequently Asked Questions
The (Almost) Complete Paul Anka Integrity Kick
Top Top Tens
Greatest Hitjobs

The Ace of Spades HQ Sex-for-Money Skankathon
A D&D Guide to the Democratic Candidates
Margaret Cho: Just Not Funny
More Margaret Cho Abuse
Margaret Cho: Still Not Funny
Iraqi Prisoner Claims He Was Raped... By Woman
Wonkette Announces "Morning Zoo" Format
John Kerry's "Plan" Causes Surrender of Moqtada al-Sadr's Militia
World Muslim Leaders Apologize for Nick Berg's Beheading
Michael Moore Goes on Lunchtime Manhattan Death-Spree
Milestone: Oliver Willis Posts 400th "Fake News Article" Referencing Britney Spears
Liberal Economists Rue a "New Decade of Greed"
Artificial Insouciance: Maureen Dowd's Word Processor Revolts Against Her Numbing Imbecility
Intelligence Officials Eye Blogs for Tips
They Done Found Us Out, Cletus: Intrepid Internet Detective Figures Out Our Master Plan
Shock: Josh Marshall Almost Mentions Sarin Discovery in Iraq
Leather-Clad Biker Freaks Terrorize Australian Town
When Clinton Was President, Torture Was Cool
What Wonkette Means When She Explains What Tina Brown Means
Wonkette's Stand-Up Act
Wankette HQ Gay-Rumors Du Jour
Here's What's Bugging Me: Goose and Slider
My Own Micah Wright Style Confession of Dishonesty
Outraged "Conservatives" React to the FMA
An On-Line Impression of Dennis Miller Having Sex with a Kodiak Bear
The Story the Rightwing Media Refuses to Report!
Our Lunch with David "Glengarry Glen Ross" Mamet
The House of Love: Paul Krugman
A Michael Moore Mystery (TM)
The Dowd-O-Matic!
Liberal Consistency and Other Myths
Kepler's Laws of Liberal Media Bias
John Kerry-- The Splunge! Candidate
"Divisive" Politics & "Attacks on Patriotism" (very long)
The Donkey ("The Raven" parody)
News/Chat
Archives
Powered by
Movable Type 2.64